/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 12:03:48,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 12:03:48,213 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-06 12:03:48,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 12:03:48,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 12:03:48,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 12:03:48,251 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 12:03:48,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 12:03:48,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 12:03:48,253 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 12:03:48,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 12:03:48,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 12:03:48,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 12:03:48,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 12:03:48,255 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 12:03:48,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 12:03:48,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 12:03:48,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 12:03:48,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 12:03:48,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 12:03:48,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 12:03:48,258 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 12:03:48,258 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 12:03:48,258 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 12:03:48,259 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 12:03:48,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 12:03:48,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 12:03:48,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 12:03:48,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 12:03:48,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 12:03:48,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 12:03:48,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 12:03:48,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 12:03:48,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 12:03:48,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 12:03:48,262 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 12:03:48,262 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 12:03:48,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 12:03:48,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 12:03:48,263 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 12:03:48,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 12:03:48,263 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 12:03:48,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 12:03:48,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 12:03:48,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 12:03:48,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 12:03:48,594 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 12:03:48,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2024-11-06 12:03:50,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 12:03:50,666 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 12:03:50,666 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2024-11-06 12:03:50,702 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5739ff98/5198ebefe9ba49c8b24c8a6478e2939a/FLAG7ac33162e [2024-11-06 12:03:50,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5739ff98/5198ebefe9ba49c8b24c8a6478e2939a [2024-11-06 12:03:50,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 12:03:50,728 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 12:03:50,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 12:03:50,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 12:03:50,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 12:03:50,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:03:50" (1/1) ... [2024-11-06 12:03:50,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@644e196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:50, skipping insertion in model container [2024-11-06 12:03:50,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:03:50" (1/1) ... [2024-11-06 12:03:50,812 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 12:03:51,247 WARN L1351 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2024-11-06 12:03:51,248 WARN L1351 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1765-1766] [2024-11-06 12:03:51,455 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i[52456,52469] [2024-11-06 12:03:51,604 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,659 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,661 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,675 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,700 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,716 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,718 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,740 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,741 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,741 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,791 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:03:51,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 12:03:51,825 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 12:03:51,877 WARN L1351 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2024-11-06 12:03:51,877 WARN L1351 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1765-1766] [2024-11-06 12:03:51,881 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [1855] [2024-11-06 12:03:51,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1858] [2024-11-06 12:03:51,884 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1861] [2024-11-06 12:03:51,884 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1864] [2024-11-06 12:03:51,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [1902] [2024-11-06 12:03:51,891 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i[52456,52469] [2024-11-06 12:03:51,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 12:03:51,992 INFO L204 MainTranslator]: Completed translation [2024-11-06 12:03:51,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51 WrapperNode [2024-11-06 12:03:51,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 12:03:51,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 12:03:51,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 12:03:51,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 12:03:52,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,107 INFO L138 Inliner]: procedures = 120, calls = 293, calls flagged for inlining = 50, calls inlined = 38, statements flattened = 916 [2024-11-06 12:03:52,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 12:03:52,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 12:03:52,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 12:03:52,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 12:03:52,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,140 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,222 INFO L175 MemorySlicer]: Split 79 memory accesses to 14 slices as follows [5, 12, 2, 0, 1, 4, 1, 1, 24, 4, 10, 1, 12, 2]. 30 percent of accesses are in the largest equivalence class. The 55 initializations are split as follows [0, 1, 2, 0, 0, 4, 1, 1, 18, 4, 10, 1, 12, 1]. The 9 writes are split as follows [3, 4, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0]. [2024-11-06 12:03:52,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 12:03:52,352 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 12:03:52,352 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 12:03:52,352 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 12:03:52,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (1/1) ... [2024-11-06 12:03:52,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 12:03:52,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:03:52,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 12:03:52,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 12:03:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2024-11-06 12:03:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2024-11-06 12:03:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-06 12:03:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-06 12:03:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-06 12:03:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-06 12:03:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-06 12:03:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-06 12:03:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-06 12:03:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#7 [2024-11-06 12:03:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#8 [2024-11-06 12:03:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#9 [2024-11-06 12:03:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#10 [2024-11-06 12:03:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#11 [2024-11-06 12:03:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#12 [2024-11-06 12:03:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#13 [2024-11-06 12:03:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-06 12:03:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-06 12:03:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-06 12:03:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-06 12:03:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_lock [2024-11-06 12:03:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_lock [2024-11-06 12:03:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-06 12:03:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-06 12:03:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_delay [2024-11-06 12:03:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_delay [2024-11-06 12:03:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-06 12:03:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-06 12:03:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-06 12:03:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-06 12:03:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2024-11-06 12:03:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2024-11-06 12:03:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock [2024-11-06 12:03:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock [2024-11-06 12:03:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-06 12:03:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-06 12:03:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-06 12:03:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-06 12:03:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_spin_write_unlock_irq [2024-11-06 12:03:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_spin_write_unlock_irq [2024-11-06 12:03:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-06 12:03:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-06 12:03:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2024-11-06 12:03:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2024-11-06 12:03:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_cleanup [2024-11-06 12:03:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_cleanup [2024-11-06 12:03:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2024-11-06 12:03:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2024-11-06 12:03:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 12:03:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 12:03:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-06 12:03:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2024-11-06 12:03:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2024-11-06 12:03:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 12:03:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-06 12:03:52,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-06 12:03:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-06 12:03:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-06 12:03:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-06 12:03:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-06 12:03:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-06 12:03:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-06 12:03:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-06 12:03:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-06 12:03:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-06 12:03:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-06 12:03:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-06 12:03:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-06 12:03:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-06 12:03:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-06 12:03:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 12:03:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats_print [2024-11-06 12:03:52,445 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats_print [2024-11-06 12:03:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-06 12:03:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-06 12:03:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-06 12:03:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-06 12:03:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-11-06 12:03:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-11-06 12:03:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock_irq [2024-11-06 12:03:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock_irq [2024-11-06 12:03:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-06 12:03:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-06 12:03:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-06 12:03:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-06 12:03:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-06 12:03:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-06 12:03:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2024-11-06 12:03:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#7 [2024-11-06 12:03:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#8 [2024-11-06 12:03:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#9 [2024-11-06 12:03:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#10 [2024-11-06 12:03:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#11 [2024-11-06 12:03:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#12 [2024-11-06 12:03:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#13 [2024-11-06 12:03:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-06 12:03:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-06 12:03:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-06 12:03:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2024-11-06 12:03:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 12:03:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-06 12:03:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-06 12:03:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-06 12:03:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-06 12:03:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-06 12:03:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-06 12:03:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-06 12:03:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-06 12:03:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-06 12:03:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-06 12:03:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-06 12:03:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-06 12:03:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-06 12:03:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-06 12:03:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_delay [2024-11-06 12:03:52,454 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_delay [2024-11-06 12:03:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-06 12:03:52,454 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-06 12:03:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-06 12:03:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-11-06 12:03:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#12 [2024-11-06 12:03:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#13 [2024-11-06 12:03:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#0 [2024-11-06 12:03:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#1 [2024-11-06 12:03:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#2 [2024-11-06 12:03:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#3 [2024-11-06 12:03:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#4 [2024-11-06 12:03:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#5 [2024-11-06 12:03:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#6 [2024-11-06 12:03:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#7 [2024-11-06 12:03:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#8 [2024-11-06 12:03:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#9 [2024-11-06 12:03:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#10 [2024-11-06 12:03:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#11 [2024-11-06 12:03:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#12 [2024-11-06 12:03:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#13 [2024-11-06 12:03:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-06 12:03:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-06 12:03:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_unlock [2024-11-06 12:03:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_unlock [2024-11-06 12:03:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_print_module_parms [2024-11-06 12:03:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_print_module_parms [2024-11-06 12:03:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-06 12:03:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-06 12:03:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_unlock [2024-11-06 12:03:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_unlock [2024-11-06 12:03:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 12:03:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 12:03:52,885 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 12:03:52,888 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 12:03:52,934 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-06 12:03:57,432 INFO L? ?]: Removed 303 outVars from TransFormulas that were not future-live. [2024-11-06 12:03:57,432 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 12:03:57,469 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 12:03:57,470 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-06 12:03:57,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:03:57 BoogieIcfgContainer [2024-11-06 12:03:57,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 12:03:57,478 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 12:03:57,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 12:03:57,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 12:03:57,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 12:03:50" (1/3) ... [2024-11-06 12:03:57,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7f0483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:03:57, skipping insertion in model container [2024-11-06 12:03:57,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:03:51" (2/3) ... [2024-11-06 12:03:57,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7f0483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:03:57, skipping insertion in model container [2024-11-06 12:03:57,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:03:57" (3/3) ... [2024-11-06 12:03:57,488 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2024-11-06 12:03:57,511 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 12:03:57,512 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 12:03:57,646 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 12:03:57,653 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;@6c0785, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 12:03:57,654 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 12:03:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 375 states, 276 states have (on average 1.3840579710144927) internal successors, (382), 289 states have internal predecessors, (382), 70 states have call successors, (70), 28 states have call predecessors, (70), 27 states have return successors, (65), 62 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-06 12:03:57,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-06 12:03:57,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:03:57,679 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:03:57,679 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:03:57,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:03:57,685 INFO L85 PathProgramCache]: Analyzing trace with hash -509314859, now seen corresponding path program 1 times [2024-11-06 12:03:57,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:03:57,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1210915872] [2024-11-06 12:03:57,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:03:57,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:03:57,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:03:57,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:03:57,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 12:03:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:03:58,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:03:58,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:03:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 12:03:58,722 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:03:58,723 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:03:58,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210915872] [2024-11-06 12:03:58,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210915872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:03:58,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:03:58,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:03:58,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846765140] [2024-11-06 12:03:58,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:03:58,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:03:58,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:03:58,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:03:58,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:03:58,780 INFO L87 Difference]: Start difference. First operand has 375 states, 276 states have (on average 1.3840579710144927) internal successors, (382), 289 states have internal predecessors, (382), 70 states have call successors, (70), 28 states have call predecessors, (70), 27 states have return successors, (65), 62 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-06 12:03:58,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:03:58,997 INFO L93 Difference]: Finished difference Result 1068 states and 1523 transitions. [2024-11-06 12:03:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:03:59,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 47 [2024-11-06 12:03:59,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:03:59,027 INFO L225 Difference]: With dead ends: 1068 [2024-11-06 12:03:59,028 INFO L226 Difference]: Without dead ends: 671 [2024-11-06 12:03:59,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:03:59,049 INFO L432 NwaCegarLoop]: 519 mSDtfsCounter, 461 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 12:03:59,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 986 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:03:59,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-06 12:03:59,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 653. [2024-11-06 12:03:59,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 495 states have (on average 1.38989898989899) internal successors, (688), 506 states have internal predecessors, (688), 112 states have call successors, (112), 46 states have call predecessors, (112), 45 states have return successors, (111), 106 states have call predecessors, (111), 110 states have call successors, (111) [2024-11-06 12:03:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 911 transitions. [2024-11-06 12:03:59,205 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 911 transitions. Word has length 47 [2024-11-06 12:03:59,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:03:59,206 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 911 transitions. [2024-11-06 12:03:59,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-06 12:03:59,207 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 911 transitions. [2024-11-06 12:03:59,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-06 12:03:59,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:03:59,213 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:03:59,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 12:03:59,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:03:59,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:03:59,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:03:59,419 INFO L85 PathProgramCache]: Analyzing trace with hash 818756459, now seen corresponding path program 1 times [2024-11-06 12:03:59,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:03:59,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022174462] [2024-11-06 12:03:59,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:03:59,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:03:59,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:03:59,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:03:59,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 12:03:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:03:59,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:03:59,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:03:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 12:03:59,853 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:03:59,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:03:59,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022174462] [2024-11-06 12:03:59,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022174462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:03:59,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:03:59,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:03:59,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260143335] [2024-11-06 12:03:59,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:03:59,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:03:59,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:03:59,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:03:59,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:03:59,858 INFO L87 Difference]: Start difference. First operand 653 states and 911 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-06 12:04:00,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:00,149 INFO L93 Difference]: Finished difference Result 1876 states and 2611 transitions. [2024-11-06 12:04:00,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:00,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2024-11-06 12:04:00,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:00,164 INFO L225 Difference]: With dead ends: 1876 [2024-11-06 12:04:00,166 INFO L226 Difference]: Without dead ends: 1239 [2024-11-06 12:04:00,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:00,172 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 441 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:00,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 972 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 12:04:00,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2024-11-06 12:04:00,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1236. [2024-11-06 12:04:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 936 states have (on average 1.3835470085470085) internal successors, (1295), 958 states have internal predecessors, (1295), 211 states have call successors, (211), 89 states have call predecessors, (211), 88 states have return successors, (210), 200 states have call predecessors, (210), 208 states have call successors, (210) [2024-11-06 12:04:00,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1716 transitions. [2024-11-06 12:04:00,286 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1716 transitions. Word has length 62 [2024-11-06 12:04:00,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:00,286 INFO L471 AbstractCegarLoop]: Abstraction has 1236 states and 1716 transitions. [2024-11-06 12:04:00,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-06 12:04:00,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1716 transitions. [2024-11-06 12:04:00,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-06 12:04:00,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:00,292 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:00,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 12:04:00,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:00,493 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:00,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:00,494 INFO L85 PathProgramCache]: Analyzing trace with hash -761754347, now seen corresponding path program 1 times [2024-11-06 12:04:00,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:00,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19068989] [2024-11-06 12:04:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:00,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:00,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:00,497 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:00,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 12:04:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:00,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:04:00,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 12:04:00,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:00,875 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:00,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19068989] [2024-11-06 12:04:00,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19068989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:00,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:00,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:04:00,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633326832] [2024-11-06 12:04:00,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:00,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:04:00,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:00,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:04:00,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:00,878 INFO L87 Difference]: Start difference. First operand 1236 states and 1716 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-06 12:04:01,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:01,171 INFO L93 Difference]: Finished difference Result 3539 states and 4900 transitions. [2024-11-06 12:04:01,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:01,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-11-06 12:04:01,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:01,187 INFO L225 Difference]: With dead ends: 3539 [2024-11-06 12:04:01,188 INFO L226 Difference]: Without dead ends: 2319 [2024-11-06 12:04:01,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:01,195 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 435 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:01,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1029 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 12:04:01,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2024-11-06 12:04:01,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2316. [2024-11-06 12:04:01,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2316 states, 1750 states have (on average 1.3765714285714286) internal successors, (2409), 1792 states have internal predecessors, (2409), 395 states have call successors, (395), 171 states have call predecessors, (395), 170 states have return successors, (394), 374 states have call predecessors, (394), 390 states have call successors, (394) [2024-11-06 12:04:01,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3198 transitions. [2024-11-06 12:04:01,405 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3198 transitions. Word has length 68 [2024-11-06 12:04:01,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:01,406 INFO L471 AbstractCegarLoop]: Abstraction has 2316 states and 3198 transitions. [2024-11-06 12:04:01,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-06 12:04:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3198 transitions. [2024-11-06 12:04:01,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-06 12:04:01,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:01,416 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:01,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 12:04:01,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:01,617 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:01,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:01,618 INFO L85 PathProgramCache]: Analyzing trace with hash 781084571, now seen corresponding path program 1 times [2024-11-06 12:04:01,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:01,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60870577] [2024-11-06 12:04:01,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:01,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:01,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:01,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:01,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 12:04:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:01,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:04:01,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-06 12:04:01,999 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:02,000 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:02,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60870577] [2024-11-06 12:04:02,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60870577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:02,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:02,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:04:02,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645961606] [2024-11-06 12:04:02,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:02,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:04:02,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:02,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:04:02,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:02,002 INFO L87 Difference]: Start difference. First operand 2316 states and 3198 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-06 12:04:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:02,193 INFO L93 Difference]: Finished difference Result 4624 states and 6392 transitions. [2024-11-06 12:04:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:02,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2024-11-06 12:04:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:02,213 INFO L225 Difference]: With dead ends: 4624 [2024-11-06 12:04:02,214 INFO L226 Difference]: Without dead ends: 2324 [2024-11-06 12:04:02,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:02,229 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 0 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:02,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 983 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 12:04:02,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2024-11-06 12:04:02,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 2324. [2024-11-06 12:04:02,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2324 states, 1758 states have (on average 1.3748577929465302) internal successors, (2417), 1800 states have internal predecessors, (2417), 395 states have call successors, (395), 171 states have call predecessors, (395), 170 states have return successors, (394), 374 states have call predecessors, (394), 390 states have call successors, (394) [2024-11-06 12:04:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2324 states to 2324 states and 3206 transitions. [2024-11-06 12:04:02,420 INFO L78 Accepts]: Start accepts. Automaton has 2324 states and 3206 transitions. Word has length 75 [2024-11-06 12:04:02,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:02,420 INFO L471 AbstractCegarLoop]: Abstraction has 2324 states and 3206 transitions. [2024-11-06 12:04:02,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-06 12:04:02,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2324 states and 3206 transitions. [2024-11-06 12:04:02,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-06 12:04:02,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:02,428 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:02,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 12:04:02,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:02,633 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:02,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1585610023, now seen corresponding path program 1 times [2024-11-06 12:04:02,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:02,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1058738270] [2024-11-06 12:04:02,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:02,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:02,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:02,638 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:02,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 12:04:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:02,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 12:04:02,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:03,052 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-06 12:04:03,052 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:03,053 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:03,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058738270] [2024-11-06 12:04:03,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058738270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:03,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:03,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 12:04:03,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989149277] [2024-11-06 12:04:03,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:03,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 12:04:03,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:03,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 12:04:03,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 12:04:03,055 INFO L87 Difference]: Start difference. First operand 2324 states and 3206 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-06 12:04:03,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:03,303 INFO L93 Difference]: Finished difference Result 4656 states and 6424 transitions. [2024-11-06 12:04:03,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 12:04:03,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2024-11-06 12:04:03,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:03,321 INFO L225 Difference]: With dead ends: 4656 [2024-11-06 12:04:03,321 INFO L226 Difference]: Without dead ends: 2324 [2024-11-06 12:04:03,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 12:04:03,334 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 1 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:03,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1471 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 12:04:03,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2024-11-06 12:04:03,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 2316. [2024-11-06 12:04:03,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2316 states, 1750 states have (on average 1.372) internal successors, (2401), 1792 states have internal predecessors, (2401), 395 states have call successors, (395), 171 states have call predecessors, (395), 170 states have return successors, (394), 374 states have call predecessors, (394), 390 states have call successors, (394) [2024-11-06 12:04:03,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3190 transitions. [2024-11-06 12:04:03,531 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3190 transitions. Word has length 75 [2024-11-06 12:04:03,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:03,532 INFO L471 AbstractCegarLoop]: Abstraction has 2316 states and 3190 transitions. [2024-11-06 12:04:03,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-06 12:04:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3190 transitions. [2024-11-06 12:04:03,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-06 12:04:03,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:03,546 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:03,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-06 12:04:03,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:03,747 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:03,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:03,748 INFO L85 PathProgramCache]: Analyzing trace with hash -88054221, now seen corresponding path program 1 times [2024-11-06 12:04:03,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:03,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2088593977] [2024-11-06 12:04:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:03,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:03,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:03,751 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:03,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 12:04:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:04,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:04:04,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-06 12:04:04,125 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:04,125 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:04,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088593977] [2024-11-06 12:04:04,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088593977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:04,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:04,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:04:04,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412101254] [2024-11-06 12:04:04,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:04,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:04:04,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:04,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:04:04,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:04,128 INFO L87 Difference]: Start difference. First operand 2316 states and 3190 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-06 12:04:04,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:04,580 INFO L93 Difference]: Finished difference Result 4768 states and 6600 transitions. [2024-11-06 12:04:04,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:04,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2024-11-06 12:04:04,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:04,602 INFO L225 Difference]: With dead ends: 4768 [2024-11-06 12:04:04,602 INFO L226 Difference]: Without dead ends: 2468 [2024-11-06 12:04:04,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:04,613 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 11 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:04,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 961 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 12:04:04,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2024-11-06 12:04:04,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2356. [2024-11-06 12:04:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 1790 states have (on average 1.3681564245810056) internal successors, (2449), 1832 states have internal predecessors, (2449), 395 states have call successors, (395), 171 states have call predecessors, (395), 170 states have return successors, (394), 374 states have call predecessors, (394), 390 states have call successors, (394) [2024-11-06 12:04:04,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 3238 transitions. [2024-11-06 12:04:04,757 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 3238 transitions. Word has length 97 [2024-11-06 12:04:04,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:04,758 INFO L471 AbstractCegarLoop]: Abstraction has 2356 states and 3238 transitions. [2024-11-06 12:04:04,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-06 12:04:04,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 3238 transitions. [2024-11-06 12:04:04,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-06 12:04:04,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:04,767 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:04,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-06 12:04:04,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:04,968 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:04,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:04,969 INFO L85 PathProgramCache]: Analyzing trace with hash -857841642, now seen corresponding path program 1 times [2024-11-06 12:04:04,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:04,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1833445163] [2024-11-06 12:04:04,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:04,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:04,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:04,973 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:04,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-06 12:04:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:05,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 12:04:05,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:05,450 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-06 12:04:05,451 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:05,451 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:05,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833445163] [2024-11-06 12:04:05,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833445163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:05,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:05,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 12:04:05,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906907931] [2024-11-06 12:04:05,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:05,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 12:04:05,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:05,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 12:04:05,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 12:04:05,458 INFO L87 Difference]: Start difference. First operand 2356 states and 3238 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-06 12:04:05,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:05,688 INFO L93 Difference]: Finished difference Result 4720 states and 6488 transitions. [2024-11-06 12:04:05,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 12:04:05,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2024-11-06 12:04:05,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:05,709 INFO L225 Difference]: With dead ends: 4720 [2024-11-06 12:04:05,709 INFO L226 Difference]: Without dead ends: 2252 [2024-11-06 12:04:05,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 12:04:05,722 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 1 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:05,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1469 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 12:04:05,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2024-11-06 12:04:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2228. [2024-11-06 12:04:05,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 1702 states have (on average 1.373090481786134) internal successors, (2337), 1744 states have internal predecessors, (2337), 355 states have call successors, (355), 171 states have call predecessors, (355), 170 states have return successors, (354), 334 states have call predecessors, (354), 350 states have call successors, (354) [2024-11-06 12:04:05,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 3046 transitions. [2024-11-06 12:04:05,861 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 3046 transitions. Word has length 107 [2024-11-06 12:04:05,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:05,862 INFO L471 AbstractCegarLoop]: Abstraction has 2228 states and 3046 transitions. [2024-11-06 12:04:05,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-06 12:04:05,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 3046 transitions. [2024-11-06 12:04:05,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-06 12:04:05,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:05,869 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:05,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-06 12:04:06,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:06,070 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:06,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1183409721, now seen corresponding path program 1 times [2024-11-06 12:04:06,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:06,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460315442] [2024-11-06 12:04:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:06,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:06,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:06,075 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:06,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-06 12:04:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:06,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:04:06,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:07,002 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-06 12:04:07,003 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:07,003 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:07,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460315442] [2024-11-06 12:04:07,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460315442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:07,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:07,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:04:07,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995710870] [2024-11-06 12:04:07,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:07,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:04:07,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:07,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:04:07,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:07,009 INFO L87 Difference]: Start difference. First operand 2228 states and 3046 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-06 12:04:07,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:07,166 INFO L93 Difference]: Finished difference Result 4440 states and 6072 transitions. [2024-11-06 12:04:07,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:07,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-11-06 12:04:07,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:07,186 INFO L225 Difference]: With dead ends: 4440 [2024-11-06 12:04:07,186 INFO L226 Difference]: Without dead ends: 2228 [2024-11-06 12:04:07,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:07,196 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 411 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:07,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 470 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:04:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2024-11-06 12:04:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2228. [2024-11-06 12:04:07,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 1702 states have (on average 1.363689776733255) internal successors, (2321), 1744 states have internal predecessors, (2321), 355 states have call successors, (355), 171 states have call predecessors, (355), 170 states have return successors, (354), 334 states have call predecessors, (354), 350 states have call successors, (354) [2024-11-06 12:04:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 3030 transitions. [2024-11-06 12:04:07,324 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 3030 transitions. Word has length 124 [2024-11-06 12:04:07,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:07,325 INFO L471 AbstractCegarLoop]: Abstraction has 2228 states and 3030 transitions. [2024-11-06 12:04:07,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-06 12:04:07,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 3030 transitions. [2024-11-06 12:04:07,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-06 12:04:07,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:07,332 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:07,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-06 12:04:07,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:07,534 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:07,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:07,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1587600104, now seen corresponding path program 1 times [2024-11-06 12:04:07,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:07,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007669574] [2024-11-06 12:04:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:07,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:07,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:07,536 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:07,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-06 12:04:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:07,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 12:04:07,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-06 12:04:08,074 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:08,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:08,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007669574] [2024-11-06 12:04:08,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007669574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:08,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:08,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 12:04:08,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410074261] [2024-11-06 12:04:08,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:08,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 12:04:08,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:08,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 12:04:08,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 12:04:08,076 INFO L87 Difference]: Start difference. First operand 2228 states and 3030 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-06 12:04:08,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:08,418 INFO L93 Difference]: Finished difference Result 4458 states and 6066 transitions. [2024-11-06 12:04:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 12:04:08,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 126 [2024-11-06 12:04:08,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:08,439 INFO L225 Difference]: With dead ends: 4458 [2024-11-06 12:04:08,439 INFO L226 Difference]: Without dead ends: 2174 [2024-11-06 12:04:08,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 12:04:08,450 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 1 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:08,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1853 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 12:04:08,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2024-11-06 12:04:08,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2102. [2024-11-06 12:04:08,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2102 states, 1607 states have (on average 1.356565028002489) internal successors, (2180), 1659 states have internal predecessors, (2180), 330 states have call successors, (330), 165 states have call predecessors, (330), 164 states have return successors, (325), 299 states have call predecessors, (325), 321 states have call successors, (325) [2024-11-06 12:04:08,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2835 transitions. [2024-11-06 12:04:08,586 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2835 transitions. Word has length 126 [2024-11-06 12:04:08,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:08,587 INFO L471 AbstractCegarLoop]: Abstraction has 2102 states and 2835 transitions. [2024-11-06 12:04:08,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-06 12:04:08,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2835 transitions. [2024-11-06 12:04:08,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-06 12:04:08,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:08,595 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:08,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-06 12:04:08,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:08,799 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:08,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:08,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1154888001, now seen corresponding path program 1 times [2024-11-06 12:04:08,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:08,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [325005656] [2024-11-06 12:04:08,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:08,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:08,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:08,804 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:08,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-06 12:04:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:09,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:04:09,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-06 12:04:09,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:09,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:09,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325005656] [2024-11-06 12:04:09,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325005656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:09,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:09,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:04:09,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504482982] [2024-11-06 12:04:09,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:09,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:04:09,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:09,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:04:09,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:09,227 INFO L87 Difference]: Start difference. First operand 2102 states and 2835 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-06 12:04:09,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:09,616 INFO L93 Difference]: Finished difference Result 5258 states and 7108 transitions. [2024-11-06 12:04:09,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:09,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2024-11-06 12:04:09,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:09,645 INFO L225 Difference]: With dead ends: 5258 [2024-11-06 12:04:09,645 INFO L226 Difference]: Without dead ends: 3172 [2024-11-06 12:04:09,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:09,655 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 418 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:09,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1160 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 12:04:09,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2024-11-06 12:04:09,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3143. [2024-11-06 12:04:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 2412 states have (on average 1.3544776119402986) internal successors, (3267), 2492 states have internal predecessors, (3267), 486 states have call successors, (486), 245 states have call predecessors, (486), 244 states have return successors, (479), 439 states have call predecessors, (479), 473 states have call successors, (479) [2024-11-06 12:04:09,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 4232 transitions. [2024-11-06 12:04:09,880 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 4232 transitions. Word has length 132 [2024-11-06 12:04:09,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:09,881 INFO L471 AbstractCegarLoop]: Abstraction has 3143 states and 4232 transitions. [2024-11-06 12:04:09,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-06 12:04:09,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 4232 transitions. [2024-11-06 12:04:09,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-06 12:04:09,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:09,890 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:09,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-06 12:04:10,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:10,091 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:10,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:10,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1338722923, now seen corresponding path program 1 times [2024-11-06 12:04:10,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:10,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859907716] [2024-11-06 12:04:10,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:10,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:10,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:10,094 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:10,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-06 12:04:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:10,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:04:10,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-06 12:04:10,504 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:10,504 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:10,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859907716] [2024-11-06 12:04:10,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859907716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:10,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:10,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:04:10,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517661831] [2024-11-06 12:04:10,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:10,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:04:10,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:10,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:04:10,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:10,506 INFO L87 Difference]: Start difference. First operand 3143 states and 4232 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-06 12:04:10,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:10,936 INFO L93 Difference]: Finished difference Result 7856 states and 10605 transitions. [2024-11-06 12:04:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:10,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2024-11-06 12:04:10,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:10,978 INFO L225 Difference]: With dead ends: 7856 [2024-11-06 12:04:10,978 INFO L226 Difference]: Without dead ends: 4729 [2024-11-06 12:04:10,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:10,989 INFO L432 NwaCegarLoop]: 715 mSDtfsCounter, 412 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:10,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 1154 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 12:04:10,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2024-11-06 12:04:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4699. [2024-11-06 12:04:11,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4699 states, 3619 states have (on average 1.3523072672008842) internal successors, (4894), 3741 states have internal predecessors, (4894), 716 states have call successors, (716), 364 states have call predecessors, (716), 363 states have return successors, (706), 645 states have call predecessors, (706), 697 states have call successors, (706) [2024-11-06 12:04:11,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4699 states to 4699 states and 6316 transitions. [2024-11-06 12:04:11,265 INFO L78 Accepts]: Start accepts. Automaton has 4699 states and 6316 transitions. Word has length 138 [2024-11-06 12:04:11,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:11,266 INFO L471 AbstractCegarLoop]: Abstraction has 4699 states and 6316 transitions. [2024-11-06 12:04:11,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-06 12:04:11,266 INFO L276 IsEmpty]: Start isEmpty. Operand 4699 states and 6316 transitions. [2024-11-06 12:04:11,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-06 12:04:11,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:11,276 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:11,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-06 12:04:11,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:11,477 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:11,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:11,478 INFO L85 PathProgramCache]: Analyzing trace with hash -524197737, now seen corresponding path program 1 times [2024-11-06 12:04:11,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:11,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377801362] [2024-11-06 12:04:11,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:11,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:11,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:11,481 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:11,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-06 12:04:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:11,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 12:04:11,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-06 12:04:12,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 12:04:13,018 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-06 12:04:13,019 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:13,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377801362] [2024-11-06 12:04:13,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377801362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 12:04:13,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 12:04:13,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-06 12:04:13,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851736015] [2024-11-06 12:04:13,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 12:04:13,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 12:04:13,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:13,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 12:04:13,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-06 12:04:13,021 INFO L87 Difference]: Start difference. First operand 4699 states and 6316 transitions. Second operand has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 6 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-06 12:04:17,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:17,799 INFO L93 Difference]: Finished difference Result 28873 states and 38734 transitions. [2024-11-06 12:04:17,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 12:04:17,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 6 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 142 [2024-11-06 12:04:17,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:18,013 INFO L225 Difference]: With dead ends: 28873 [2024-11-06 12:04:18,013 INFO L226 Difference]: Without dead ends: 28069 [2024-11-06 12:04:18,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 12:04:18,036 INFO L432 NwaCegarLoop]: 1208 mSDtfsCounter, 2423 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:18,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2423 Valid, 2688 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-06 12:04:18,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28069 states. [2024-11-06 12:04:20,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28069 to 27910. [2024-11-06 12:04:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27910 states, 21510 states have (on average 1.3541608554160856) internal successors, (29128), 22197 states have internal predecessors, (29128), 4226 states have call successors, (4226), 2174 states have call predecessors, (4226), 2173 states have return successors, (4216), 3850 states have call predecessors, (4216), 4162 states have call successors, (4216) [2024-11-06 12:04:20,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27910 states to 27910 states and 37570 transitions. [2024-11-06 12:04:20,336 INFO L78 Accepts]: Start accepts. Automaton has 27910 states and 37570 transitions. Word has length 142 [2024-11-06 12:04:20,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:20,337 INFO L471 AbstractCegarLoop]: Abstraction has 27910 states and 37570 transitions. [2024-11-06 12:04:20,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 6 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-06 12:04:20,338 INFO L276 IsEmpty]: Start isEmpty. Operand 27910 states and 37570 transitions. [2024-11-06 12:04:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-06 12:04:20,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:20,382 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:20,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-06 12:04:20,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:20,583 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:20,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:20,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1973619074, now seen corresponding path program 1 times [2024-11-06 12:04:20,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:20,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806486262] [2024-11-06 12:04:20,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:20,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:20,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:20,588 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:20,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-06 12:04:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:20,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:04:20,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:21,483 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-06 12:04:21,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:21,484 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:21,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806486262] [2024-11-06 12:04:21,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806486262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:21,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:21,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:04:21,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931374578] [2024-11-06 12:04:21,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:21,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:04:21,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:21,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:04:21,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:21,486 INFO L87 Difference]: Start difference. First operand 27910 states and 37570 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-06 12:04:23,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:23,799 INFO L93 Difference]: Finished difference Result 55804 states and 75120 transitions. [2024-11-06 12:04:23,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:23,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 151 [2024-11-06 12:04:23,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:24,019 INFO L225 Difference]: With dead ends: 55804 [2024-11-06 12:04:24,020 INFO L226 Difference]: Without dead ends: 27910 [2024-11-06 12:04:24,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:24,113 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 439 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:24,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:04:24,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27910 states. [2024-11-06 12:04:26,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27910 to 27910. [2024-11-06 12:04:26,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27910 states, 21510 states have (on average 1.3491399349139934) internal successors, (29020), 22197 states have internal predecessors, (29020), 4226 states have call successors, (4226), 2174 states have call predecessors, (4226), 2173 states have return successors, (4216), 3850 states have call predecessors, (4216), 4162 states have call successors, (4216) [2024-11-06 12:04:26,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27910 states to 27910 states and 37462 transitions. [2024-11-06 12:04:26,525 INFO L78 Accepts]: Start accepts. Automaton has 27910 states and 37462 transitions. Word has length 151 [2024-11-06 12:04:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:26,526 INFO L471 AbstractCegarLoop]: Abstraction has 27910 states and 37462 transitions. [2024-11-06 12:04:26,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-06 12:04:26,526 INFO L276 IsEmpty]: Start isEmpty. Operand 27910 states and 37462 transitions. [2024-11-06 12:04:26,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-06 12:04:26,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:26,570 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:26,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-06 12:04:26,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:26,771 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:26,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:26,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1000927310, now seen corresponding path program 1 times [2024-11-06 12:04:26,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:26,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343911376] [2024-11-06 12:04:26,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:26,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:26,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:26,779 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:26,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-06 12:04:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:27,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:04:27,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:27,934 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-06 12:04:27,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:27,935 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:27,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343911376] [2024-11-06 12:04:27,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343911376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:27,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:27,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:04:27,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933332965] [2024-11-06 12:04:27,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:27,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:04:27,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:27,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:04:27,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:27,937 INFO L87 Difference]: Start difference. First operand 27910 states and 37462 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-06 12:04:30,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:30,128 INFO L93 Difference]: Finished difference Result 55804 states and 74904 transitions. [2024-11-06 12:04:30,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:30,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 154 [2024-11-06 12:04:30,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:30,432 INFO L225 Difference]: With dead ends: 55804 [2024-11-06 12:04:30,433 INFO L226 Difference]: Without dead ends: 27910 [2024-11-06 12:04:30,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:30,509 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 391 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:30,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:04:30,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27910 states. [2024-11-06 12:04:32,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27910 to 27910. [2024-11-06 12:04:32,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27910 states, 21510 states have (on average 1.3463505346350535) internal successors, (28960), 22197 states have internal predecessors, (28960), 4226 states have call successors, (4226), 2174 states have call predecessors, (4226), 2173 states have return successors, (4216), 3850 states have call predecessors, (4216), 4162 states have call successors, (4216) [2024-11-06 12:04:33,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27910 states to 27910 states and 37402 transitions. [2024-11-06 12:04:33,090 INFO L78 Accepts]: Start accepts. Automaton has 27910 states and 37402 transitions. Word has length 154 [2024-11-06 12:04:33,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:33,091 INFO L471 AbstractCegarLoop]: Abstraction has 27910 states and 37402 transitions. [2024-11-06 12:04:33,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-06 12:04:33,091 INFO L276 IsEmpty]: Start isEmpty. Operand 27910 states and 37402 transitions. [2024-11-06 12:04:33,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-06 12:04:33,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:33,134 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:33,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-06 12:04:33,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:33,339 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:33,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:33,339 INFO L85 PathProgramCache]: Analyzing trace with hash -40527882, now seen corresponding path program 1 times [2024-11-06 12:04:33,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:33,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731477567] [2024-11-06 12:04:33,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:33,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:33,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:33,343 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:33,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-06 12:04:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:33,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:04:33,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-06 12:04:33,998 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:33,998 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:33,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731477567] [2024-11-06 12:04:33,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731477567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:33,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:33,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:04:33,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728752149] [2024-11-06 12:04:33,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:33,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:04:33,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:34,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:04:34,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:34,000 INFO L87 Difference]: Start difference. First operand 27910 states and 37402 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-06 12:04:36,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:36,063 INFO L93 Difference]: Finished difference Result 55804 states and 74784 transitions. [2024-11-06 12:04:36,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:36,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 160 [2024-11-06 12:04:36,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:36,385 INFO L225 Difference]: With dead ends: 55804 [2024-11-06 12:04:36,385 INFO L226 Difference]: Without dead ends: 27910 [2024-11-06 12:04:36,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:36,460 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 398 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:36,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:04:36,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27910 states. [2024-11-06 12:04:39,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27910 to 27910. [2024-11-06 12:04:39,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27910 states, 21510 states have (on average 1.3413296141329614) internal successors, (28852), 22197 states have internal predecessors, (28852), 4226 states have call successors, (4226), 2174 states have call predecessors, (4226), 2173 states have return successors, (4216), 3850 states have call predecessors, (4216), 4162 states have call successors, (4216) [2024-11-06 12:04:39,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27910 states to 27910 states and 37294 transitions. [2024-11-06 12:04:39,172 INFO L78 Accepts]: Start accepts. Automaton has 27910 states and 37294 transitions. Word has length 160 [2024-11-06 12:04:39,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:39,173 INFO L471 AbstractCegarLoop]: Abstraction has 27910 states and 37294 transitions. [2024-11-06 12:04:39,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-06 12:04:39,173 INFO L276 IsEmpty]: Start isEmpty. Operand 27910 states and 37294 transitions. [2024-11-06 12:04:39,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-06 12:04:39,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:39,200 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:39,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-06 12:04:39,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:39,401 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:39,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:39,402 INFO L85 PathProgramCache]: Analyzing trace with hash 535817202, now seen corresponding path program 1 times [2024-11-06 12:04:39,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:39,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [690157328] [2024-11-06 12:04:39,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:39,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:39,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:39,405 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:39,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-06 12:04:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:39,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:04:39,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:40,063 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-06 12:04:40,063 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:40,063 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:40,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690157328] [2024-11-06 12:04:40,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690157328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:40,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:40,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:04:40,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129663065] [2024-11-06 12:04:40,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:40,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:04:40,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:40,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:04:40,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:40,066 INFO L87 Difference]: Start difference. First operand 27910 states and 37294 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-06 12:04:41,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:41,903 INFO L93 Difference]: Finished difference Result 55804 states and 74568 transitions. [2024-11-06 12:04:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:04:41,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 162 [2024-11-06 12:04:41,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:42,186 INFO L225 Difference]: With dead ends: 55804 [2024-11-06 12:04:42,186 INFO L226 Difference]: Without dead ends: 27910 [2024-11-06 12:04:42,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:04:42,276 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 399 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:42,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:04:42,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27910 states. [2024-11-06 12:04:44,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27910 to 27910. [2024-11-06 12:04:44,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27910 states, 21510 states have (on average 1.3363086936308695) internal successors, (28744), 22197 states have internal predecessors, (28744), 4226 states have call successors, (4226), 2174 states have call predecessors, (4226), 2173 states have return successors, (4216), 3850 states have call predecessors, (4216), 4162 states have call successors, (4216) [2024-11-06 12:04:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27910 states to 27910 states and 37186 transitions. [2024-11-06 12:04:45,070 INFO L78 Accepts]: Start accepts. Automaton has 27910 states and 37186 transitions. Word has length 162 [2024-11-06 12:04:45,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:45,070 INFO L471 AbstractCegarLoop]: Abstraction has 27910 states and 37186 transitions. [2024-11-06 12:04:45,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-06 12:04:45,071 INFO L276 IsEmpty]: Start isEmpty. Operand 27910 states and 37186 transitions. [2024-11-06 12:04:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-06 12:04:45,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:04:45,095 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:45,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-06 12:04:45,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:45,296 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:04:45,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:04:45,297 INFO L85 PathProgramCache]: Analyzing trace with hash 34422254, now seen corresponding path program 1 times [2024-11-06 12:04:45,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:04:45,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753917298] [2024-11-06 12:04:45,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:04:45,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:45,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:04:45,300 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:04:45,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-06 12:04:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:04:45,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-06 12:04:45,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:04:45,839 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-06 12:04:45,839 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:04:45,839 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:04:45,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753917298] [2024-11-06 12:04:45,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753917298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:04:45,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:04:45,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 12:04:45,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618489028] [2024-11-06 12:04:45,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:04:45,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 12:04:45,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:04:45,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 12:04:45,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 12:04:45,841 INFO L87 Difference]: Start difference. First operand 27910 states and 37186 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-06 12:04:46,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:04:46,711 INFO L93 Difference]: Finished difference Result 29106 states and 38718 transitions. [2024-11-06 12:04:46,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 12:04:46,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 164 [2024-11-06 12:04:46,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:04:46,759 INFO L225 Difference]: With dead ends: 29106 [2024-11-06 12:04:46,759 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 12:04:46,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 12:04:46,825 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 270 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:04:46,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 797 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 12:04:46,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 12:04:46,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 12:04:46,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 12:04:46,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 12:04:46,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2024-11-06 12:04:46,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:04:46,868 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 12:04:46,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-06 12:04:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 12:04:46,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 12:04:46,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 12:04:46,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-06 12:04:47,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:04:47,074 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:04:47,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.