/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 bitwuzla -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 19:12:52,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 19:12:52,600 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 19:12:52,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 19:12:52,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 19:12:52,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 19:12:52,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 19:12:52,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 19:12:52,635 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 19:12:52,636 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 19:12:52,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 19:12:52,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 19:12:52,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 19:12:52,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 19:12:52,638 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 19:12:52,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 19:12:52,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 19:12:52,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 19:12:52,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 19:12:52,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 19:12:52,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 19:12:52,641 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 19:12:52,641 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 19:12:52,641 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 19:12:52,642 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 19:12:52,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 19:12:52,642 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 19:12:52,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 19:12:52,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 19:12:52,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 19:12:52,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 19:12:52,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 19:12:52,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 19:12:52,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 19:12:52,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 19:12:52,645 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 19:12:52,646 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 19:12:52,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 19:12:52,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 19:12:52,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 19:12:52,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 19:12:52,651 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 19:12:52,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-01 19:12:52,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 19:12:53,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 19:12:53,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 19:12:53,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 19:12:53,013 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 19:12:53,014 INFO L431 ainManager$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 19:12:54,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 19:12:54,905 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 19:12:54,906 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 19:12:54,938 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a256b2a/05526c3bc01b474187a52e6eac3b21a9/FLAG02f045b8e [2024-11-01 19:12:54,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a256b2a/05526c3bc01b474187a52e6eac3b21a9 [2024-11-01 19:12:54,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 19:12:54,958 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 19:12:54,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 19:12:54,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 19:12:54,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 19:12:54,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 07:12:54" (1/1) ... [2024-11-01 19:12:54,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4ab64d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:54, skipping insertion in model container [2024-11-01 19:12:54,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 07:12:54" (1/1) ... [2024-11-01 19:12:55,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 19:12:55,458 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 19:12:55,463 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 19:12:55,478 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 19:12:55,481 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 19:12:55,485 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 19:12:55,487 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 19:12:55,489 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 19:12:55,491 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 19:12:55,492 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 19:12:55,499 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 19:12:55,541 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 19:12:55,620 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 19:12:55,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 19:12:55,660 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 19:12:55,797 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 19:12:55,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 19:12:55,898 INFO L204 MainTranslator]: Completed translation [2024-11-01 19:12:55,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55 WrapperNode [2024-11-01 19:12:55,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 19:12:55,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 19:12:55,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 19:12:55,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 19:12:55,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:55,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,014 INFO L138 Inliner]: procedures = 106, calls = 348, calls flagged for inlining = 40, calls inlined = 32, statements flattened = 771 [2024-11-01 19:12:56,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 19:12:56,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 19:12:56,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 19:12:56,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 19:12:56,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,041 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,127 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]. [2024-11-01 19:12:56,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 19:12:56,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 19:12:56,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 19:12:56,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 19:12:56,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (1/1) ... [2024-11-01 19:12:56,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 19:12:56,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 19:12:56,238 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 19:12:56,241 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 19:12:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2024-11-01 19:12:56,269 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2024-11-01 19:12:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-01 19:12:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-01 19:12:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-01 19:12:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-01 19:12:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-01 19:12:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-01 19:12:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-01 19:12:56,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-01 19:12:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-01 19:12:56,271 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-01 19:12:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-01 19:12:56,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-01 19:12:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2024-11-01 19:12:56,272 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2024-11-01 19:12:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-01 19:12:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-01 19:12:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-01 19:12:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-01 19:12:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-01 19:12:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-01 19:12:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-01 19:12:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-01 19:12:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-01 19:12:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-01 19:12:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-01 19:12:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-01 19:12:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-01 19:12:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-01 19:12:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-01 19:12:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-01 19:12:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-01 19:12:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-01 19:12:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-01 19:12:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-01 19:12:56,277 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-01 19:12:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 19:12:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-01 19:12:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-01 19:12:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-01 19:12:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-01 19:12:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-01 19:12:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-01 19:12:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-01 19:12:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-01 19:12:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-01 19:12:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-01 19:12:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-01 19:12:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-01 19:12:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-01 19:12:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-01 19:12:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-01 19:12:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-01 19:12:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-01 19:12:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-01 19:12:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-01 19:12:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2024-11-01 19:12:56,281 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2024-11-01 19:12:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-01 19:12:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-01 19:12:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-01 19:12:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-01 19:12:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-01 19:12:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-01 19:12:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-01 19:12:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2024-11-01 19:12:56,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2024-11-01 19:12:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 19:12:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-01 19:12:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-01 19:12:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-01 19:12:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-01 19:12:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-01 19:12:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-01 19:12:56,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-01 19:12:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2024-11-01 19:12:56,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2024-11-01 19:12:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 19:12:56,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 19:12:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-01 19:12:56,283 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-01 19:12:56,597 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 19:12:56,599 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 19:13:09,250 INFO L? ?]: Removed 264 outVars from TransFormulas that were not future-live. [2024-11-01 19:13:09,250 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 19:13:09,267 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 19:13:09,267 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-01 19:13:09,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 07:13:09 BoogieIcfgContainer [2024-11-01 19:13:09,268 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 19:13:09,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 19:13:09,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 19:13:09,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 19:13:09,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 07:12:54" (1/3) ... [2024-11-01 19:13:09,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19fd3d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 07:13:09, skipping insertion in model container [2024-11-01 19:13:09,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:12:55" (2/3) ... [2024-11-01 19:13:09,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19fd3d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 07:13:09, skipping insertion in model container [2024-11-01 19:13:09,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 07:13:09" (3/3) ... [2024-11-01 19:13:09,281 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2024-11-01 19:13:09,295 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 19:13:09,295 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 19:13:09,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 19:13:09,384 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;@28fd48ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 19:13:09,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 19:13:09,392 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 19:13:09,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-01 19:13:09,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:13:09,400 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:13:09,400 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:13:09,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:13:09,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1457130019, now seen corresponding path program 1 times [2024-11-01 19:13:09,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:13:09,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [518654716] [2024-11-01 19:13:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:13:09,414 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:13:09,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:13:09,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:13:09,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-01 19:13:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:13:12,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:13:12,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:13:13,382 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 19:13:13,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:13:13,986 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 19:13:13,987 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:13:13,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [518654716] [2024-11-01 19:13:13,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [518654716] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:13:13,988 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:13:13,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-01 19:13:13,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765616606] [2024-11-01 19:13:13,990 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:13:13,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 19:13:13,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:13:14,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 19:13:14,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 19:13:14,027 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 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 19:13:18,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 19:13:23,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:13:23,198 INFO L93 Difference]: Finished difference Result 676 states and 964 transitions. [2024-11-01 19:13:23,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 19:13:23,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 19:13:23,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:13:23,214 INFO L225 Difference]: With dead ends: 676 [2024-11-01 19:13:23,214 INFO L226 Difference]: Without dead ends: 493 [2024-11-01 19:13:23,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 19:13:23,220 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 594 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-01 19:13:23,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 624 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2024-11-01 19:13:23,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-01 19:13:23,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 485. [2024-11-01 19:13:23,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 379 states have (on average 1.353562005277045) internal successors, (513), 387 states have internal predecessors, (513), 75 states have call successors, (75), 31 states have call predecessors, (75), 30 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-01 19:13:23,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 657 transitions. [2024-11-01 19:13:23,295 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 657 transitions. Word has length 15 [2024-11-01 19:13:23,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:13:23,296 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 657 transitions. [2024-11-01 19:13:23,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 19:13:23,296 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 657 transitions. [2024-11-01 19:13:23,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-01 19:13:23,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:13:23,300 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 19:13:23,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-01 19:13:23,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:13:23,505 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:13:23,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:13:23,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1586811989, now seen corresponding path program 1 times [2024-11-01 19:13:23,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:13:23,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041980167] [2024-11-01 19:13:23,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:13:23,506 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:13:23,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:13:23,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:13:23,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-01 19:13:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:13:26,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:13:26,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:13:28,151 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 19:13:28,152 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:13:29,943 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 19:13:29,944 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:13:29,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041980167] [2024-11-01 19:13:29,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1041980167] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:13:29,944 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:13:29,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 19:13:29,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571747460] [2024-11-01 19:13:29,944 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:13:29,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 19:13:29,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:13:29,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 19:13:29,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:13:29,947 INFO L87 Difference]: Start difference. First operand 485 states and 657 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 19:13:34,030 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 [] [2024-11-01 19:13:34,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:13:34,190 INFO L93 Difference]: Finished difference Result 487 states and 658 transitions. [2024-11-01 19:13:34,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 19:13:34,193 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 19:13:34,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:13:34,199 INFO L225 Difference]: With dead ends: 487 [2024-11-01 19:13:34,200 INFO L226 Difference]: Without dead ends: 484 [2024-11-01 19:13:34,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 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 19:13:34,202 INFO L432 NwaCegarLoop]: 234 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, 234 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 [2024-11-01 19:13:34,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-01 19:13:34,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-11-01 19:13:34,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2024-11-01 19:13:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 379 states have (on average 1.3509234828496042) internal successors, (512), 386 states have internal predecessors, (512), 74 states have call successors, (74), 31 states have call predecessors, (74), 30 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-01 19:13:34,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 655 transitions. [2024-11-01 19:13:34,264 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 655 transitions. Word has length 18 [2024-11-01 19:13:34,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:13:34,264 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 655 transitions. [2024-11-01 19:13:34,264 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 19:13:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 655 transitions. [2024-11-01 19:13:34,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-01 19:13:34,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:13:34,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:13:34,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0 [2024-11-01 19:13:34,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:13:34,468 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:13:34,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:13:34,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1946413297, now seen corresponding path program 1 times [2024-11-01 19:13:34,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:13:34,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718173093] [2024-11-01 19:13:34,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:13:34,469 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:13:34,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:13:34,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:13:34,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-01 19:13:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:13:37,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:13:37,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:13:39,693 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 19:13:39,694 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:13:42,009 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 19:13:42,009 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:13:42,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718173093] [2024-11-01 19:13:42,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [718173093] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:13:42,010 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:13:42,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 19:13:42,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642194685] [2024-11-01 19:13:42,010 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:13:42,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 19:13:42,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:13:42,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 19:13:42,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:13:42,012 INFO L87 Difference]: Start difference. First operand 484 states and 655 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19:13:46,081 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 [] [2024-11-01 19:13:47,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-01 19:13:47,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:13:47,167 INFO L93 Difference]: Finished difference Result 486 states and 656 transitions. [2024-11-01 19:13:47,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 19:13:47,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19 [2024-11-01 19:13:47,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:13:47,172 INFO L225 Difference]: With dead ends: 486 [2024-11-01 19:13:47,172 INFO L226 Difference]: Without dead ends: 483 [2024-11-01 19:13:47,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:13:47,174 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 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, 5.1s IncrementalHoareTripleChecker+Time [2024-11-01 19:13:47,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 232 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-11-01 19:13:47,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-01 19:13:47,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2024-11-01 19:13:47,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 379 states have (on average 1.3482849604221636) internal successors, (511), 385 states have internal predecessors, (511), 73 states have call successors, (73), 31 states have call predecessors, (73), 30 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-01 19:13:47,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 653 transitions. [2024-11-01 19:13:47,215 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 653 transitions. Word has length 19 [2024-11-01 19:13:47,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:13:47,216 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 653 transitions. [2024-11-01 19:13:47,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19:13:47,216 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 653 transitions. [2024-11-01 19:13:47,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-01 19:13:47,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:13:47,219 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] [2024-11-01 19:13:47,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-01 19:13:47,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:13:47,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:13:47,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:13:47,424 INFO L85 PathProgramCache]: Analyzing trace with hash 209156824, now seen corresponding path program 1 times [2024-11-01 19:13:47,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:13:47,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140681667] [2024-11-01 19:13:47,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:13:47,425 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:13:47,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:13:47,427 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:13:47,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-01 19:13:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:13:49,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:13:49,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:13:53,402 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 19:13:53,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:13:56,467 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 19:13:56,467 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:13:56,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140681667] [2024-11-01 19:13:56,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1140681667] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:13:56,468 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:13:56,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 19:13:56,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930461509] [2024-11-01 19:13:56,468 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:13:56,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 19:13:56,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:13:56,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 19:13:56,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:13:56,469 INFO L87 Difference]: Start difference. First operand 483 states and 653 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19:14:00,549 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 [] [2024-11-01 19:14:01,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:14:01,551 INFO L93 Difference]: Finished difference Result 496 states and 661 transitions. [2024-11-01 19:14:01,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 19:14:01,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 20 [2024-11-01 19:14:01,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:14:01,555 INFO L225 Difference]: With dead ends: 496 [2024-11-01 19:14:01,555 INFO L226 Difference]: Without dead ends: 492 [2024-11-01 19:14:01,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:14:01,557 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 179 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 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, 5.0s IncrementalHoareTripleChecker+Time [2024-11-01 19:14:01,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 261 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-11-01 19:14:01,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-01 19:14:01,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 490. [2024-11-01 19:14:01,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 385 states have (on average 1.3324675324675326) internal successors, (513), 389 states have internal predecessors, (513), 71 states have call successors, (71), 34 states have call predecessors, (71), 33 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-01 19:14:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 653 transitions. [2024-11-01 19:14:01,589 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 653 transitions. Word has length 20 [2024-11-01 19:14:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:14:01,589 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 653 transitions. [2024-11-01 19:14:01,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19:14:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 653 transitions. [2024-11-01 19:14:01,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-01 19:14:01,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:14:01,591 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] [2024-11-01 19:14:01,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Forceful destruction successful, exit code 0 [2024-11-01 19:14:01,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:14:01,792 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:14:01,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:14:01,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2106181420, now seen corresponding path program 1 times [2024-11-01 19:14:01,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:14:01,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267162375] [2024-11-01 19:14:01,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:14:01,793 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:14:01,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:14:01,796 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:14:01,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-01 19:14:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:14:04,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:14:04,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:14:07,588 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 19:14:07,588 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:14:11,123 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 19:14:11,124 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:14:11,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267162375] [2024-11-01 19:14:11,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1267162375] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:14:11,124 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:14:11,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 19:14:11,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004852863] [2024-11-01 19:14:11,125 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:14:11,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 19:14:11,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:14:11,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 19:14:11,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:14:11,126 INFO L87 Difference]: Start difference. First operand 490 states and 653 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 19:14:15,200 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 [] [2024-11-01 19:14:15,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:14:15,224 INFO L93 Difference]: Finished difference Result 492 states and 654 transitions. [2024-11-01 19:14:16,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 19:14:16,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 21 [2024-11-01 19:14:16,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:14:16,440 INFO L225 Difference]: With dead ends: 492 [2024-11-01 19:14:16,440 INFO L226 Difference]: Without dead ends: 482 [2024-11-01 19:14:16,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:14:16,442 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 209 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 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 [2024-11-01 19:14:16,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-01 19:14:16,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-01 19:14:16,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 325. [2024-11-01 19:14:16,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 255 states have (on average 1.3254901960784313) internal successors, (338), 257 states have internal predecessors, (338), 47 states have call successors, (47), 23 states have call predecessors, (47), 22 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-01 19:14:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 431 transitions. [2024-11-01 19:14:16,470 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 431 transitions. Word has length 21 [2024-11-01 19:14:16,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:14:16,470 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 431 transitions. [2024-11-01 19:14:16,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 19:14:16,470 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 431 transitions. [2024-11-01 19:14:16,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-01 19:14:16,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:14:16,473 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 19:14:16,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-01 19:14:16,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:14:16,677 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:14:16,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:14:16,678 INFO L85 PathProgramCache]: Analyzing trace with hash -361933504, now seen corresponding path program 1 times [2024-11-01 19:14:16,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:14:16,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212066730] [2024-11-01 19:14:16,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:14:16,678 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:14:16,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:14:16,679 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:14:16,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-01 19:14:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:14:18,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:14:18,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:14:20,602 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 19:14:20,602 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:14:24,229 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 19:14:24,229 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:14:24,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212066730] [2024-11-01 19:14:24,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [212066730] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:14:24,229 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:14:24,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 19:14:24,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508828397] [2024-11-01 19:14:24,230 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:14:24,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 19:14:24,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:14:24,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 19:14:24,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:14:24,232 INFO L87 Difference]: Start difference. First operand 325 states and 431 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 19:14:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:14:26,377 INFO L93 Difference]: Finished difference Result 835 states and 1114 transitions. [2024-11-01 19:14:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 19:14:26,378 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 19:14:26,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:14:26,381 INFO L225 Difference]: With dead ends: 835 [2024-11-01 19:14:26,381 INFO L226 Difference]: Without dead ends: 513 [2024-11-01 19:14:26,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 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 19:14:26,384 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 126 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-01 19:14:26,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 424 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-01 19:14:26,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-01 19:14:26,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2024-11-01 19:14:26,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 415 states have (on average 1.3373493975903614) internal successors, (555), 419 states have internal predecessors, (555), 65 states have call successors, (65), 33 states have call predecessors, (65), 32 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-01 19:14:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 684 transitions. [2024-11-01 19:14:26,426 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 684 transitions. Word has length 42 [2024-11-01 19:14:26,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:14:26,426 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 684 transitions. [2024-11-01 19:14:26,426 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 19:14:26,427 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 684 transitions. [2024-11-01 19:14:26,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-01 19:14:26,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:14:26,429 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, 1] [2024-11-01 19:14:26,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Ended with exit code 0 [2024-11-01 19:14:26,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:14:26,630 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:14:26,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:14:26,631 INFO L85 PathProgramCache]: Analyzing trace with hash 999253211, now seen corresponding path program 1 times [2024-11-01 19:14:26,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:14:26,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346016258] [2024-11-01 19:14:26,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:14:26,631 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:14:26,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:14:26,634 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:14:26,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-01 19:14:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:14:29,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-01 19:14:29,253 INFO L278 TraceCheckSpWp]: Computing forward predicates...