/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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 11:49:16,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 11:49:16,870 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 11:49:16,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 11:49:16,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 11:49:16,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 11:49:16,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 11:49:16,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 11:49:16,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 11:49:16,901 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 11:49:16,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 11:49:16,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 11:49:16,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 11:49:16,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 11:49:16,902 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 11:49:16,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 11:49:16,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 11:49:16,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 11:49:16,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 11:49:16,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 11:49:16,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 11:49:16,903 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 11:49:16,904 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 11:49:16,904 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 11:49:16,904 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 11:49:16,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 11:49:16,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 11:49:16,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 11:49:16,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 11:49:16,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 11:49:16,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 11:49:16,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 11:49:16,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 11:49:16,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 11:49:16,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 11:49:16,906 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 11:49:16,906 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 11:49:16,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 11:49:16,906 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 11:49:16,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 11:49:16,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 11:49:16,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 11:49:17,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 11:49:17,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 11:49:17,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 11:49:17,118 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 11:49:17,119 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 11:49:17,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2024-11-06 11:49:18,415 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 11:49:18,676 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 11:49:18,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2024-11-06 11:49:18,703 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45c4568fa/e74f012b8b63404bb2a4fad907339ecd/FLAGdf40c79a5 [2024-11-06 11:49:18,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45c4568fa/e74f012b8b63404bb2a4fad907339ecd [2024-11-06 11:49:18,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 11:49:18,719 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 11:49:18,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 11:49:18,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 11:49:18,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 11:49:18,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:49:18" (1/1) ... [2024-11-06 11:49:18,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb56d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:18, skipping insertion in model container [2024-11-06 11:49:18,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:49:18" (1/1) ... [2024-11-06 11:49:18,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 11:49:19,161 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 11:49:19,167 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 11:49:19,187 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 11:49:19,188 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 11:49:19,193 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 11:49:19,194 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 11:49:19,195 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 11:49:19,198 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 11:49:19,200 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 11:49:19,204 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 11:49:19,230 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i[73128,73141] [2024-11-06 11:49:19,291 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 11:49:19,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 11:49:19,328 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 11:49:19,435 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i[73128,73141] [2024-11-06 11:49:19,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 11:49:19,521 INFO L204 MainTranslator]: Completed translation [2024-11-06 11:49:19,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19 WrapperNode [2024-11-06 11:49:19,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 11:49:19,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 11:49:19,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 11:49:19,524 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 11:49:19,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,620 INFO L138 Inliner]: procedures = 106, calls = 348, calls flagged for inlining = 40, calls inlined = 32, statements flattened = 771 [2024-11-06 11:49:19,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 11:49:19,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 11:49:19,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 11:49:19,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 11:49:19,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,705 INFO L175 MemorySlicer]: Split 228 memory accesses to 6 slices as follows [2, 103, 12, 14, 65, 32]. 45 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0, 0, 0]. The 204 writes are split as follows [0, 93, 12, 2, 65, 32]. [2024-11-06 11:49:19,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 11:49:19,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 11:49:19,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 11:49:19,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 11:49:19,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (1/1) ... [2024-11-06 11:49:19,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 11:49:19,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 11:49:19,805 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 11:49:19,806 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 11:49:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2024-11-06 11:49:19,826 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2024-11-06 11:49:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-06 11:49:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-06 11:49:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-06 11:49:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-06 11:49:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-06 11:49:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-06 11:49:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-06 11:49:19,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-06 11:49:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-06 11:49:19,827 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-06 11:49:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-06 11:49:19,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-06 11:49:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2024-11-06 11:49:19,828 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2024-11-06 11:49:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-06 11:49:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-06 11:49:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-06 11:49:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-06 11:49:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-06 11:49:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-06 11:49:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-06 11:49:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-06 11:49:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-06 11:49:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-06 11:49:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-06 11:49:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-06 11:49:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-06 11:49:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-06 11:49:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-06 11:49:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-06 11:49:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-06 11:49:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-06 11:49:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-06 11:49:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-06 11:49:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-06 11:49:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 11:49:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-06 11:49:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-06 11:49:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-06 11:49:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-06 11:49:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-06 11:49:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-06 11:49:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 11:49:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-06 11:49:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-06 11:49:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-06 11:49:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-06 11:49:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-06 11:49:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-06 11:49:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-06 11:49:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-06 11:49:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-06 11:49:19,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-06 11:49:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-06 11:49:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-06 11:49:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2024-11-06 11:49:19,834 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2024-11-06 11:49:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 11:49:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-06 11:49:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-06 11:49:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-06 11:49:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-06 11:49:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-06 11:49:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-06 11:49:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2024-11-06 11:49:19,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2024-11-06 11:49:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 11:49:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 11:49:19,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 11:49:19,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 11:49:19,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 11:49:19,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-06 11:49:19,837 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-06 11:49:19,837 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-06 11:49:19,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2024-11-06 11:49:19,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2024-11-06 11:49:19,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 11:49:19,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 11:49:19,838 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-06 11:49:19,838 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-06 11:49:20,034 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 11:49:20,036 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 11:49:31,771 INFO L? ?]: Removed 264 outVars from TransFormulas that were not future-live. [2024-11-06 11:49:31,771 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 11:49:31,790 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 11:49:31,791 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 11:49:31,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:49:31 BoogieIcfgContainer [2024-11-06 11:49:31,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 11:49:31,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 11:49:31,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 11:49:31,796 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 11:49:31,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:49:18" (1/3) ... [2024-11-06 11:49:31,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5760fd4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:49:31, skipping insertion in model container [2024-11-06 11:49:31,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:49:19" (2/3) ... [2024-11-06 11:49:31,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5760fd4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:49:31, skipping insertion in model container [2024-11-06 11:49:31,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:49:31" (3/3) ... [2024-11-06 11:49:31,798 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2024-11-06 11:49:31,811 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 11:49:31,811 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 11:49:31,871 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 11:49:31,876 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;@7b8f5e5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 11:49:31,876 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 11:49:31,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 140 states have (on average 1.3714285714285714) internal successors, (192), 148 states have internal predecessors, (192), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-06 11:49:31,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-06 11:49:31,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 11:49:31,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 11:49:31,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 11:49:31,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 11:49:31,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1457130019, now seen corresponding path program 1 times [2024-11-06 11:49:31,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 11:49:31,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386916324] [2024-11-06 11:49:31,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 11:49:31,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 11:49:31,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 11:49:31,916 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 11:49:31,917 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 11:49:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 11:49:34,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 11:49:34,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 11:49:35,450 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 11:49:35,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 11:49:35,451 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 11:49:35,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386916324] [2024-11-06 11:49:35,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386916324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 11:49:35,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 11:49:35,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 11:49:35,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539466994] [2024-11-06 11:49:35,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 11:49:35,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 11:49:35,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 11:49:35,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 11:49:35,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:49:35,485 INFO L87 Difference]: Start difference. First operand has 182 states, 140 states have (on average 1.3714285714285714) internal successors, (192), 148 states have internal predecessors, (192), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 11:49:39,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-06 11:49:39,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 11:49:39,763 INFO L93 Difference]: Finished difference Result 358 states and 504 transitions. [2024-11-06 11:49:39,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 11:49:39,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-06 11:49:39,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 11:49:39,772 INFO L225 Difference]: With dead ends: 358 [2024-11-06 11:49:39,772 INFO L226 Difference]: Without dead ends: 175 [2024-11-06 11:49:39,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:49:39,778 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 227 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-06 11:49:39,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 238 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-06 11:49:39,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-06 11:49:39,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-06 11:49:39,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 136 states have (on average 1.3529411764705883) internal successors, (184), 141 states have internal predecessors, (184), 28 states have call successors, (28), 11 states have call predecessors, (28), 10 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-06 11:49:39,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 235 transitions. [2024-11-06 11:49:39,824 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 235 transitions. Word has length 15 [2024-11-06 11:49:39,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 11:49:39,824 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 235 transitions. [2024-11-06 11:49:39,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 11:49:39,824 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 235 transitions. [2024-11-06 11:49:39,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-06 11:49:39,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 11:49:39,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 11:49:39,855 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 11:49:40,029 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 11:49:40,030 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 11:49:40,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 11:49:40,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2073491561, now seen corresponding path program 1 times [2024-11-06 11:49:40,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 11:49:40,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29444225] [2024-11-06 11:49:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 11:49:40,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 11:49:40,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 11:49:40,037 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 11:49:40,039 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 11:49:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 11:49:42,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 11:49:42,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 11:49:44,014 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 11:49:44,015 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 11:49:44,015 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 11:49:44,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29444225] [2024-11-06 11:49:44,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29444225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 11:49:44,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 11:49:44,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 11:49:44,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59443491] [2024-11-06 11:49:44,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 11:49:44,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 11:49:44,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 11:49:44,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 11:49:44,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:49:44,017 INFO L87 Difference]: Start difference. First operand 175 states and 235 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 11:49:48,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-06 11:49:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 11:49:48,328 INFO L93 Difference]: Finished difference Result 177 states and 236 transitions. [2024-11-06 11:49:48,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 11:49:48,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 11:49:48,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 11:49:48,334 INFO L225 Difference]: With dead ends: 177 [2024-11-06 11:49:48,334 INFO L226 Difference]: Without dead ends: 174 [2024-11-06 11:49:48,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:49:48,335 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 220 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-06 11:49:48,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 232 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-06 11:49:48,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-06 11:49:48,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-06 11:49:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 136 states have (on average 1.3455882352941178) internal successors, (183), 140 states have internal predecessors, (183), 27 states have call successors, (27), 11 states have call predecessors, (27), 10 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-06 11:49:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 233 transitions. [2024-11-06 11:49:48,361 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 233 transitions. Word has length 16 [2024-11-06 11:49:48,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 11:49:48,361 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 233 transitions. [2024-11-06 11:49:48,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 11:49:48,362 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 233 transitions. [2024-11-06 11:49:48,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-06 11:49:48,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 11:49:48,366 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 11:49:48,393 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 11:49:48,566 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 11:49:48,568 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 11:49:48,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 11:49:48,568 INFO L85 PathProgramCache]: Analyzing trace with hash -146384288, now seen corresponding path program 1 times [2024-11-06 11:49:48,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 11:49:48,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615376313] [2024-11-06 11:49:48,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 11:49:48,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 11:49:48,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 11:49:48,571 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 11:49:48,572 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 11:49:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 11:49:50,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 1252 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 11:49:50,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 11:49:53,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 11:49:53,080 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 11:49:53,080 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 11:49:53,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615376313] [2024-11-06 11:49:53,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615376313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 11:49:53,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 11:49:53,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 11:49:53,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975874614] [2024-11-06 11:49:53,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 11:49:53,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 11:49:53,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 11:49:53,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 11:49:53,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:49:53,082 INFO L87 Difference]: Start difference. First operand 174 states and 233 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 11:49:57,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-06 11:49:58,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 11:49:58,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 11:49:58,783 INFO L93 Difference]: Finished difference Result 181 states and 237 transitions. [2024-11-06 11:49:58,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 11:49:58,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 17 [2024-11-06 11:49:58,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 11:49:58,785 INFO L225 Difference]: With dead ends: 181 [2024-11-06 11:49:58,785 INFO L226 Difference]: Without dead ends: 177 [2024-11-06 11:49:58,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:49:58,786 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 182 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-06 11:49:58,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 261 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2024-11-06 11:49:58,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-06 11:49:58,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2024-11-06 11:49:58,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.326086956521739) internal successors, (183), 140 states have internal predecessors, (183), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-06 11:49:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 231 transitions. [2024-11-06 11:49:58,800 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 231 transitions. Word has length 17 [2024-11-06 11:49:58,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 11:49:58,801 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 231 transitions. [2024-11-06 11:49:58,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 11:49:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 231 transitions. [2024-11-06 11:49:58,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-06 11:49:58,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 11:49:58,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 11:49:58,826 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 11:49:59,002 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 11:49:59,002 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 11:49:59,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 11:49:59,003 INFO L85 PathProgramCache]: Analyzing trace with hash -243054004, now seen corresponding path program 1 times [2024-11-06 11:49:59,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 11:49:59,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230115808] [2024-11-06 11:49:59,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 11:49:59,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 11:49:59,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 11:49:59,006 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 11:49:59,007 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 11:50:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 11:50:01,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 11:50:01,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 11:50:04,679 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 11:50:04,679 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 11:50:04,680 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 11:50:04,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230115808] [2024-11-06 11:50:04,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230115808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 11:50:04,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 11:50:04,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 11:50:04,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363214662] [2024-11-06 11:50:04,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 11:50:04,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 11:50:04,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 11:50:04,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 11:50:04,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:50:04,681 INFO L87 Difference]: Start difference. First operand 175 states and 231 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 11:50:08,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-06 11:50:08,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 11:50:08,763 INFO L93 Difference]: Finished difference Result 177 states and 232 transitions. [2024-11-06 11:50:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 11:50:09,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 18 [2024-11-06 11:50:09,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 11:50:09,019 INFO L225 Difference]: With dead ends: 177 [2024-11-06 11:50:09,019 INFO L226 Difference]: Without dead ends: 167 [2024-11-06 11:50:09,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:50:09,021 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 212 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-06 11:50:09,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-06 11:50:09,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-06 11:50:09,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-06 11:50:09,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 131 states have (on average 1.3282442748091603) internal successors, (174), 132 states have internal predecessors, (174), 24 states have call successors, (24), 12 states have call predecessors, (24), 11 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-06 11:50:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 221 transitions. [2024-11-06 11:50:09,040 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 221 transitions. Word has length 18 [2024-11-06 11:50:09,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 11:50:09,041 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 221 transitions. [2024-11-06 11:50:09,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 11:50:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 221 transitions. [2024-11-06 11:50:09,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-06 11:50:09,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 11:50:09,043 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:09,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 11:50:09,243 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 11:50:09,243 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 11:50:09,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 11:50:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash -361933504, now seen corresponding path program 1 times [2024-11-06 11:50:09,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 11:50:09,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864042800] [2024-11-06 11:50:09,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 11:50:09,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 11:50:09,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 11:50:09,246 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 11:50:09,247 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 11:50:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 11:50:11,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 11:50:11,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 11:50:13,177 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 11:50:13,178 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 11:50:13,178 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 11:50:13,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864042800] [2024-11-06 11:50:13,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864042800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 11:50:13,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 11:50:13,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 11:50:13,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873153857] [2024-11-06 11:50:13,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 11:50:13,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 11:50:13,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 11:50:13,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 11:50:13,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:50:13,180 INFO L87 Difference]: Start difference. First operand 167 states and 221 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-06 11:50:15,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 11:50:15,243 INFO L93 Difference]: Finished difference Result 427 states and 570 transitions. [2024-11-06 11:50:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 11:50:15,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2024-11-06 11:50:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 11:50:15,246 INFO L225 Difference]: With dead ends: 427 [2024-11-06 11:50:15,246 INFO L226 Difference]: Without dead ends: 263 [2024-11-06 11:50:15,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:50:15,247 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 126 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-06 11:50:15,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 422 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-06 11:50:15,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-06 11:50:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2024-11-06 11:50:15,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 213 states have (on average 1.3427230046948357) internal successors, (286), 215 states have internal predecessors, (286), 33 states have call successors, (33), 17 states have call predecessors, (33), 16 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-06 11:50:15,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 351 transitions. [2024-11-06 11:50:15,263 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 351 transitions. Word has length 42 [2024-11-06 11:50:15,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 11:50:15,263 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 351 transitions. [2024-11-06 11:50:15,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-06 11:50:15,263 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 351 transitions. [2024-11-06 11:50:15,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-06 11:50:15,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 11:50:15,265 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 11:50:15,296 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 11:50:15,465 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 11:50:15,466 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 11:50:15,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 11:50:15,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1718696462, now seen corresponding path program 1 times [2024-11-06 11:50:15,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 11:50:15,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080095295] [2024-11-06 11:50:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 11:50:15,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 11:50:15,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 11:50:15,470 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 11:50:15,471 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 11:50:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 11:50:17,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 11:50:17,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 11:50:21,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 11:50:21,494 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 11:50:21,495 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 11:50:21,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080095295] [2024-11-06 11:50:21,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080095295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 11:50:21,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 11:50:21,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 11:50:21,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507751601] [2024-11-06 11:50:21,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 11:50:21,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 11:50:21,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 11:50:21,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 11:50:21,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:50:21,496 INFO L87 Difference]: Start difference. First operand 263 states and 351 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-06 11:50:25,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-06 11:50:26,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 11:50:26,266 INFO L93 Difference]: Finished difference Result 263 states and 351 transitions. [2024-11-06 11:50:26,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 11:50:26,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2024-11-06 11:50:26,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 11:50:26,268 INFO L225 Difference]: With dead ends: 263 [2024-11-06 11:50:26,268 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 11:50:26,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 11:50:26,269 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 19 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-06 11:50:26,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 397 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-06 11:50:26,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 11:50:26,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 11:50:26,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 11:50:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 11:50:26,272 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2024-11-06 11:50:26,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 11:50:26,273 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 11:50:26,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-06 11:50:26,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 11:50:26,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 11:50:26,276 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 11:50:26,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-06 11:50:26,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 11:50:26,479 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-06 11:50:26,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 11:50:34,936 WARN L286 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 23 DAG size of output: 10 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)