/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -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-356b6ba-m [2024-11-01 06:40:24,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 06:40:24,493 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 06:40:24,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 06:40:24,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 06:40:24,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 06:40:24,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 06:40:24,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 06:40:24,544 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 06:40:24,544 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 06:40:24,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 06:40:24,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 06:40:24,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 06:40:24,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 06:40:24,546 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 06:40:24,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 06:40:24,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 06:40:24,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 06:40:24,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 06:40:24,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 06:40:24,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 06:40:24,553 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 06:40:24,553 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 06:40:24,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 06:40:24,554 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 06:40:24,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 06:40:24,554 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 06:40:24,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 06:40:24,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 06:40:24,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 06:40:24,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 06:40:24,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 06:40:24,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 06:40:24,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 06:40:24,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 06:40:24,557 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 06:40:24,558 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 06:40:24,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 06:40:24,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 06:40:24,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 06:40:24,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 06:40:24,559 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 06:40:24,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-01 06:40:24,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 06:40:25,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 06:40:25,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 06:40:25,005 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 06:40:25,006 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 06:40:25,007 INFO L431 ainManager$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 [2024-11-01 06:40:26,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 06:40:27,023 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 06:40:27,024 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 [2024-11-01 06:40:27,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a54f4fb/62ddd7404d6c42b1bd516d1641e236f4/FLAG41b775032 [2024-11-01 06:40:27,082 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a54f4fb/62ddd7404d6c42b1bd516d1641e236f4 [2024-11-01 06:40:27,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 06:40:27,088 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 06:40:27,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 06:40:27,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 06:40:27,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 06:40:27,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 06:40:27" (1/1) ... [2024-11-01 06:40:27,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@681627b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:27, skipping insertion in model container [2024-11-01 06:40:27,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 06:40:27" (1/1) ... [2024-11-01 06:40:27,171 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 06:40:27,756 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,766 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,793 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,798 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,801 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,802 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,804 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,805 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,809 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,819 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,871 WARN L251 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] [2024-11-01 06:40:27,992 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:40:27,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 06:40:28,032 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 06:40:28,174 WARN L251 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] [2024-11-01 06:40:28,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 06:40:28,282 INFO L204 MainTranslator]: Completed translation [2024-11-01 06:40:28,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28 WrapperNode [2024-11-01 06:40:28,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 06:40:28,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 06:40:28,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 06:40:28,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 06:40:28,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,393 INFO L138 Inliner]: procedures = 106, calls = 348, calls flagged for inlining = 40, calls inlined = 32, statements flattened = 771 [2024-11-01 06:40:28,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 06:40:28,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 06:40:28,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 06:40:28,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 06:40:28,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,420 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,482 INFO L175 MemorySlicer]: Split 228 memory accesses to 6 slices as follows [2, 103, 14, 65, 32, 12]. 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, 2, 65, 32, 12]. [2024-11-01 06:40:28,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 06:40:28,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 06:40:28,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 06:40:28,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 06:40:28,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (1/1) ... [2024-11-01 06:40:28,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 06:40:28,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 06:40:28,644 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) [2024-11-01 06:40:28,648 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 [2024-11-01 06:40:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2024-11-01 06:40:28,677 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2024-11-01 06:40:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-01 06:40:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-01 06:40:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-01 06:40:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-01 06:40:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-01 06:40:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-01 06:40:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-01 06:40:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-01 06:40:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-01 06:40:28,679 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-01 06:40:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-01 06:40:28,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-01 06:40:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2024-11-01 06:40:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2024-11-01 06:40:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-01 06:40:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-01 06:40:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-01 06:40:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-01 06:40:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-01 06:40:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-01 06:40:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-01 06:40:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-01 06:40:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-01 06:40:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-01 06:40:28,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-01 06:40:28,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-01 06:40:28,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-01 06:40:28,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-01 06:40:28,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-01 06:40:28,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-01 06:40:28,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-01 06:40:28,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-01 06:40:28,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-01 06:40:28,684 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-01 06:40:28,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-01 06:40:28,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 06:40:28,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-01 06:40:28,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-01 06:40:28,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-01 06:40:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-01 06:40:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-01 06:40:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-01 06:40:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-01 06:40:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-01 06:40:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-01 06:40:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-01 06:40:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-01 06:40:28,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-01 06:40:28,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-01 06:40:28,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-01 06:40:28,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-01 06:40:28,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-01 06:40:28,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-01 06:40:28,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-01 06:40:28,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-01 06:40:28,686 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2024-11-01 06:40:28,687 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2024-11-01 06:40:28,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-01 06:40:28,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-01 06:40:28,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-01 06:40:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-01 06:40:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-01 06:40:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-01 06:40:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-01 06:40:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2024-11-01 06:40:28,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2024-11-01 06:40:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 06:40:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-01 06:40:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-01 06:40:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-01 06:40:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-01 06:40:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-01 06:40:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-01 06:40:28,690 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-01 06:40:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2024-11-01 06:40:28,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2024-11-01 06:40:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 06:40:28,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 06:40:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-01 06:40:28,691 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-01 06:40:29,024 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 06:40:29,026 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 06:40:42,487 INFO L? ?]: Removed 264 outVars from TransFormulas that were not future-live. [2024-11-01 06:40:42,488 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 06:40:42,511 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 06:40:42,511 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-01 06:40:42,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 06:40:42 BoogieIcfgContainer [2024-11-01 06:40:42,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 06:40:42,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 06:40:42,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 06:40:42,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 06:40:42,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 06:40:27" (1/3) ... [2024-11-01 06:40:42,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cdb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 06:40:42, skipping insertion in model container [2024-11-01 06:40:42,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:40:28" (2/3) ... [2024-11-01 06:40:42,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cdb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 06:40:42, skipping insertion in model container [2024-11-01 06:40:42,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 06:40:42" (3/3) ... [2024-11-01 06:40:42,521 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2024-11-01 06:40:42,538 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 06:40:42,538 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 06:40:42,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 06:40:42,628 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;@3f2d61a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 06:40:42,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 06:40:42,637 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) [2024-11-01 06:40:42,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-01 06:40:42,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:40:42,650 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:40:42,651 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:40:42,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:40:42,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1457130019, now seen corresponding path program 1 times [2024-11-01 06:40:42,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:40:42,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024904728] [2024-11-01 06:40:42,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:40:42,665 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:40:42,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:40:42,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:40:42,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-01 06:40:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:40:46,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:40:46,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:40:48,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 06:40:48,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:40:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 06:40:49,003 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:40:49,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024904728] [2024-11-01 06:40:49,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1024904728] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:40:49,004 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:40:49,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 06:40:49,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811345223] [2024-11-01 06:40:49,007 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:40:49,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:40:49,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:40:49,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:40:49,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:40:49,040 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) [2024-11-01 06:40:53,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 06:40:53,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:40:53,385 INFO L93 Difference]: Finished difference Result 358 states and 504 transitions. [2024-11-01 06:40:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:40:53,388 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 [2024-11-01 06:40:53,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:40:53,398 INFO L225 Difference]: With dead ends: 358 [2024-11-01 06:40:53,398 INFO L226 Difference]: Without dead ends: 175 [2024-11-01 06:40:53,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:40:53,405 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 227 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 4.3s IncrementalHoareTripleChecker+Time [2024-11-01 06:40:53,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 238 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-01 06:40:53,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-01 06:40:53,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-01 06:40:53,453 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) [2024-11-01 06:40:53,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 235 transitions. [2024-11-01 06:40:53,458 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 235 transitions. Word has length 15 [2024-11-01 06:40:53,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:40:53,458 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 235 transitions. [2024-11-01 06:40:53,459 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) [2024-11-01 06:40:53,459 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 235 transitions. [2024-11-01 06:40:53,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-01 06:40:53,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:40:53,461 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:40:53,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-01 06:40:53,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:40:53,662 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:40:53,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:40:53,663 INFO L85 PathProgramCache]: Analyzing trace with hash 2073491561, now seen corresponding path program 1 times [2024-11-01 06:40:53,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:40:53,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915786938] [2024-11-01 06:40:53,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:40:53,664 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:40:53,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:40:53,666 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:40:53,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-01 06:40:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:40:57,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:40:57,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:40:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 06:40:59,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:41:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 06:41:00,947 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:41:00,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915786938] [2024-11-01 06:41:00,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1915786938] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:41:00,948 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:41:00,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 06:41:00,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299644808] [2024-11-01 06:41:00,948 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:41:00,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:41:00,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:41:00,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:41:00,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:41:00,950 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) [2024-11-01 06:41:05,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 06:41:06,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-01 06:41:06,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:41:06,589 INFO L93 Difference]: Finished difference Result 177 states and 236 transitions. [2024-11-01 06:41:06,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:41:06,592 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 [2024-11-01 06:41:06,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:41:06,594 INFO L225 Difference]: With dead ends: 177 [2024-11-01 06:41:06,595 INFO L226 Difference]: Without dead ends: 174 [2024-11-01 06:41:06,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:41:06,597 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 220 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 5.6s IncrementalHoareTripleChecker+Time [2024-11-01 06:41:06,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 232 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-11-01 06:41:06,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-01 06:41:06,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-01 06:41:06,627 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) [2024-11-01 06:41:06,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 233 transitions. [2024-11-01 06:41:06,634 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 233 transitions. Word has length 16 [2024-11-01 06:41:06,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:41:06,634 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 233 transitions. [2024-11-01 06:41:06,635 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) [2024-11-01 06:41:06,635 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 233 transitions. [2024-11-01 06:41:06,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-01 06:41:06,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:41:06,641 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:41:06,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-01 06:41:06,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:41:06,842 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:41:06,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:41:06,843 INFO L85 PathProgramCache]: Analyzing trace with hash -146384288, now seen corresponding path program 1 times [2024-11-01 06:41:06,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:41:06,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736058823] [2024-11-01 06:41:06,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:41:06,844 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:41:06,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:41:06,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:41:06,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-01 06:41:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:41:09,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 1252 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:41:09,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:41:13,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 06:41:13,440 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:41:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 06:41:16,529 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:41:16,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736058823] [2024-11-01 06:41:16,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1736058823] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:41:16,529 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:41:16,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 06:41:16,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904008362] [2024-11-01 06:41:16,530 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:41:16,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:41:16,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:41:16,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:41:16,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:41:16,531 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) [2024-11-01 06:41:22,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 06:41:23,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:41:23,002 INFO L93 Difference]: Finished difference Result 181 states and 237 transitions. [2024-11-01 06:41:23,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:41:23,003 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 [2024-11-01 06:41:23,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:41:23,005 INFO L225 Difference]: With dead ends: 181 [2024-11-01 06:41:23,005 INFO L226 Difference]: Without dead ends: 177 [2024-11-01 06:41:23,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:41:23,007 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 182 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s 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, 6.4s IncrementalHoareTripleChecker+Time [2024-11-01 06:41:23,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 261 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2024-11-01 06:41:23,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-01 06:41:23,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2024-11-01 06:41:23,034 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) [2024-11-01 06:41:23,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 231 transitions. [2024-11-01 06:41:23,037 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 231 transitions. Word has length 17 [2024-11-01 06:41:23,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:41:23,037 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 231 transitions. [2024-11-01 06:41:23,037 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) [2024-11-01 06:41:23,037 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 231 transitions. [2024-11-01 06:41:23,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-01 06:41:23,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:41:23,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:41:23,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-01 06:41:23,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:41:23,240 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:41:23,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:41:23,241 INFO L85 PathProgramCache]: Analyzing trace with hash -243054004, now seen corresponding path program 1 times [2024-11-01 06:41:23,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:41:23,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755423891] [2024-11-01 06:41:23,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:41:23,242 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:41:23,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:41:23,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:41:23,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-01 06:41:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:41:26,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:41:26,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:41:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 06:41:31,152 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:41:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 06:41:35,213 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:41:35,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755423891] [2024-11-01 06:41:35,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [755423891] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:41:35,213 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:41:35,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 06:41:35,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61067894] [2024-11-01 06:41:35,213 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:41:35,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:41:35,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:41:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:41:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:41:35,215 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) [2024-11-01 06:41:39,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 06:41:39,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:41:39,901 INFO L93 Difference]: Finished difference Result 177 states and 232 transitions. [2024-11-01 06:41:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:41:39,948 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 [2024-11-01 06:41:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:41:39,949 INFO L225 Difference]: With dead ends: 177 [2024-11-01 06:41:39,950 INFO L226 Difference]: Without dead ends: 167 [2024-11-01 06:41:39,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:41:39,951 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 212 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s 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, 4.7s IncrementalHoareTripleChecker+Time [2024-11-01 06:41:39,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-11-01 06:41:39,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-01 06:41:39,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-01 06:41:39,977 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) [2024-11-01 06:41:39,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 221 transitions. [2024-11-01 06:41:39,979 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 221 transitions. Word has length 18 [2024-11-01 06:41:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:41:39,980 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 221 transitions. [2024-11-01 06:41:39,980 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) [2024-11-01 06:41:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 221 transitions. [2024-11-01 06:41:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-01 06:41:39,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:41:39,983 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] [2024-11-01 06:41:40,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-01 06:41:40,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:41:40,184 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:41:40,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:41:40,185 INFO L85 PathProgramCache]: Analyzing trace with hash -361933504, now seen corresponding path program 1 times [2024-11-01 06:41:40,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:41:40,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758476783] [2024-11-01 06:41:40,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:41:40,185 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:41:40,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:41:40,187 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:41:40,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-01 06:41:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:41:42,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:41:42,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:41:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 06:41:45,098 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:41:49,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 06:41:49,345 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:41:49,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758476783] [2024-11-01 06:41:49,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1758476783] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:41:49,345 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:41:49,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 06:41:49,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429188776] [2024-11-01 06:41:49,345 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:41:49,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:41:49,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:41:49,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:41:49,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:41:49,347 INFO L87 Difference]: Start difference. First operand 167 states and 221 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-01 06:41:51,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:41:51,685 INFO L93 Difference]: Finished difference Result 427 states and 570 transitions. [2024-11-01 06:41:51,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:41:51,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 42 [2024-11-01 06:41:51,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:41:51,687 INFO L225 Difference]: With dead ends: 427 [2024-11-01 06:41:51,687 INFO L226 Difference]: Without dead ends: 263 [2024-11-01 06:41:51,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:41:51,690 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 126 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.3s IncrementalHoareTripleChecker+Time [2024-11-01 06:41:51,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 422 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-01 06:41:51,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-01 06:41:51,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2024-11-01 06:41:51,710 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) [2024-11-01 06:41:51,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 351 transitions. [2024-11-01 06:41:51,712 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 351 transitions. Word has length 42 [2024-11-01 06:41:51,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:41:51,712 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 351 transitions. [2024-11-01 06:41:51,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-01 06:41:51,713 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 351 transitions. [2024-11-01 06:41:51,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-01 06:41:51,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:41:51,715 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] [2024-11-01 06:41:51,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-01 06:41:51,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:41:51,917 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:41:51,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:41:51,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1718696462, now seen corresponding path program 1 times [2024-11-01 06:41:51,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:41:51,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327634697] [2024-11-01 06:41:51,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:41:51,917 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:41:51,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:41:51,919 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:41:51,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-01 06:41:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:41:54,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-01 06:41:54,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:41:59,133 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-01 06:41:59,134 INFO L311 TraceCheckSpWp]: Computing backward predicates...