/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 23:15:34,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 23:15:34,322 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-02 23:15:34,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 23:15:34,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 23:15:34,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 23:15:34,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 23:15:34,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 23:15:34,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 23:15:34,349 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 23:15:34,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 23:15:34,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 23:15:34,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 23:15:34,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 23:15:34,351 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 23:15:34,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 23:15:34,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 23:15:34,351 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 23:15:34,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 23:15:34,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 23:15:34,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 23:15:34,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 23:15:34,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 23:15:34,355 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 23:15:34,357 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 23:15:34,357 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 23:15:34,357 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 23:15:34,357 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 23:15:34,357 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 23:15:34,357 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 23:15:34,358 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 23:15:34,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 23:15:34,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 23:15:34,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 23:15:34,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 23:15:34,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 23:15:34,359 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 23:15:34,359 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 23:15:34,359 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 23:15:34,359 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 23:15:34,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 23:15:34,360 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 23:15:34,360 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 23:15:34,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 23:15:34,360 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:34,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 23:15:34,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 23:15:34,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 23:15:34,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 23:15:34,543 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 23:15:34,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730a.c [2024-11-02 23:15:35,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 23:15:36,092 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 23:15:36,094 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730a.c [2024-11-02 23:15:36,106 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d099605fb/4bb332c9386c47e283e6626a244bd832/FLAG55687a945 [2024-11-02 23:15:36,450 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d099605fb/4bb332c9386c47e283e6626a244bd832 [2024-11-02 23:15:36,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 23:15:36,454 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 23:15:36,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 23:15:36,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 23:15:36,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 23:15:36,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7789e3a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36, skipping insertion in model container [2024-11-02 23:15:36,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 23:15:36,636 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730a.c[2102,2115] [2024-11-02 23:15:36,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 23:15:36,651 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 23:15:36,686 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730a.c[2102,2115] [2024-11-02 23:15:36,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 23:15:36,708 INFO L204 MainTranslator]: Completed translation [2024-11-02 23:15:36,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36 WrapperNode [2024-11-02 23:15:36,710 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 23:15:36,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 23:15:36,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 23:15:36,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 23:15:36,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,744 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 129 [2024-11-02 23:15:36,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 23:15:36,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 23:15:36,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 23:15:36,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 23:15:36,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,759 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,777 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-02 23:15:36,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,781 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 23:15:36,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 23:15:36,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 23:15:36,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 23:15:36,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (1/1) ... [2024-11-02 23:15:36,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 23:15:36,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:15:36,834 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) [2024-11-02 23:15:36,839 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 [2024-11-02 23:15:36,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 23:15:36,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-02 23:15:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-02 23:15:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-02 23:15:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 23:15:36,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 23:15:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-02 23:15:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-02 23:15:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-02 23:15:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-02 23:15:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-02 23:15:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-02 23:15:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-02 23:15:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-02 23:15:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 23:15:36,959 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 23:15:36,961 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 23:15:37,837 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-02 23:15:37,837 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 23:15:37,852 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 23:15:37,852 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-02 23:15:37,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:15:37 BoogieIcfgContainer [2024-11-02 23:15:37,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 23:15:37,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 23:15:37,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 23:15:37,858 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 23:15:37,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:15:36" (1/3) ... [2024-11-02 23:15:37,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c92397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:15:37, skipping insertion in model container [2024-11-02 23:15:37,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:36" (2/3) ... [2024-11-02 23:15:37,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c92397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:15:37, skipping insertion in model container [2024-11-02 23:15:37,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:15:37" (3/3) ... [2024-11-02 23:15:37,863 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730a.c [2024-11-02 23:15:37,875 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 23:15:37,875 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 23:15:37,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 23:15:37,930 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;@24d2d8d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 23:15:37,930 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 23:15:37,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 35 states have internal predecessors, (55), 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) [2024-11-02 23:15:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-02 23:15:37,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:15:37,937 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:15:37,938 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:15:37,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:15:37,941 INFO L85 PathProgramCache]: Analyzing trace with hash 175857115, now seen corresponding path program 1 times [2024-11-02 23:15:37,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:15:37,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911755690] [2024-11-02 23:15:37,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:15:37,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:37,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:15:37,951 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) [2024-11-02 23:15:37,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 23:15:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:15:38,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 23:15:38,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:15:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:38,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:15:38,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:38,044 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:15:38,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911755690] [2024-11-02 23:15:38,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [911755690] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:15:38,045 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:15:38,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-02 23:15:38,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347834342] [2024-11-02 23:15:38,047 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:15:38,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 23:15:38,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:15:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 23:15:38,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 23:15:38,072 INFO L87 Difference]: Start difference. First operand has 36 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 35 states have internal predecessors, (55), 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-11-02 23:15:38,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:15:38,085 INFO L93 Difference]: Finished difference Result 70 states and 108 transitions. [2024-11-02 23:15:38,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 23:15:38,086 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) Word has length 11 [2024-11-02 23:15:38,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:15:38,092 INFO L225 Difference]: With dead ends: 70 [2024-11-02 23:15:38,092 INFO L226 Difference]: Without dead ends: 33 [2024-11-02 23:15:38,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 23:15:38,097 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 23:15:38,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 23:15:38,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-02 23:15:38,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-02 23:15:38,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 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) [2024-11-02 23:15:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2024-11-02 23:15:38,124 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 11 [2024-11-02 23:15:38,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:15:38,125 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2024-11-02 23:15:38,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-11-02 23:15:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-11-02 23:15:38,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-02 23:15:38,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:15:38,126 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:15:38,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 23:15:38,326 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 [2024-11-02 23:15:38,327 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:15:38,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:15:38,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1305768564, now seen corresponding path program 1 times [2024-11-02 23:15:38,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:15:38,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716065767] [2024-11-02 23:15:38,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:15:38,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:15:38,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:15:38,330 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) [2024-11-02 23:15:38,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 23:15:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:15:38,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 23:15:38,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:15:38,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:38,880 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:15:57,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:15:57,077 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:15:57,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716065767] [2024-11-02 23:15:57,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [716065767] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:15:57,077 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:15:57,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2024-11-02 23:15:57,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882334221] [2024-11-02 23:15:57,078 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:15:57,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-02 23:15:57,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:15:57,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-02 23:15:57,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-02 23:15:57,086 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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) [2024-11-02 23:16:02,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:02,342 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2024-11-02 23:16:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 23:16:02,343 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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) Word has length 13 [2024-11-02 23:16:02,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:02,344 INFO L225 Difference]: With dead ends: 42 [2024-11-02 23:16:02,344 INFO L226 Difference]: Without dead ends: 34 [2024-11-02 23:16:02,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-02 23:16:02,347 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 34 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:02,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 300 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-02 23:16:02,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-02 23:16:02,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2024-11-02 23:16:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 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) [2024-11-02 23:16:02,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2024-11-02 23:16:02,355 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 13 [2024-11-02 23:16:02,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:02,355 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2024-11-02 23:16:02,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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) [2024-11-02 23:16:02,356 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2024-11-02 23:16:02,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-02 23:16:02,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:02,357 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:02,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 23:16:02,561 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 [2024-11-02 23:16:02,562 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:02,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:02,562 INFO L85 PathProgramCache]: Analyzing trace with hash -358919737, now seen corresponding path program 1 times [2024-11-02 23:16:02,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:02,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671003514] [2024-11-02 23:16:02,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:02,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:02,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:02,565 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) [2024-11-02 23:16:02,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 23:16:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:02,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-02 23:16:02,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:02,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:02,962 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:02,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671003514] [2024-11-02 23:16:02,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [671003514] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:16:02,962 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:16:02,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-02 23:16:02,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770682306] [2024-11-02 23:16:02,963 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:16:02,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 23:16:02,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:02,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 23:16:02,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-02 23:16:02,964 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-02 23:16:03,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:03,247 INFO L93 Difference]: Finished difference Result 57 states and 71 transitions. [2024-11-02 23:16:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 23:16:03,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) Word has length 15 [2024-11-02 23:16:03,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:03,248 INFO L225 Difference]: With dead ends: 57 [2024-11-02 23:16:03,248 INFO L226 Difference]: Without dead ends: 33 [2024-11-02 23:16:03,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-02 23:16:03,249 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 40 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:03,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 62 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 23:16:03,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-02 23:16:03,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2024-11-02 23:16:03,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 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) [2024-11-02 23:16:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-02 23:16:03,258 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 15 [2024-11-02 23:16:03,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:03,259 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-02 23:16:03,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-02 23:16:03,259 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-11-02 23:16:03,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-02 23:16:03,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:03,265 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:03,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-02 23:16:03,465 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 [2024-11-02 23:16:03,466 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:03,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:03,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1143556505, now seen corresponding path program 1 times [2024-11-02 23:16:03,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:03,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156519029] [2024-11-02 23:16:03,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:03,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:03,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:03,472 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) [2024-11-02 23:16:03,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 23:16:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:03,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 23:16:03,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:03,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:03,718 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:03,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156519029] [2024-11-02 23:16:03,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1156519029] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:16:03,719 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:16:03,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 23:16:03,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725538684] [2024-11-02 23:16:03,719 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:16:03,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 23:16:03,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:03,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 23:16:03,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 23:16:03,723 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-02 23:16:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:03,824 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2024-11-02 23:16:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 23:16:03,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) Word has length 25 [2024-11-02 23:16:03,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:03,826 INFO L225 Difference]: With dead ends: 51 [2024-11-02 23:16:03,826 INFO L226 Difference]: Without dead ends: 36 [2024-11-02 23:16:03,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 23:16:03,827 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 6 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:03,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 96 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 23:16:03,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-02 23:16:03,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-02 23:16:03,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 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) [2024-11-02 23:16:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2024-11-02 23:16:03,836 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 25 [2024-11-02 23:16:03,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:03,837 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2024-11-02 23:16:03,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-02 23:16:03,837 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2024-11-02 23:16:03,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-02 23:16:03,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:03,838 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-02 23:16:03,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-02 23:16:04,039 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 [2024-11-02 23:16:04,039 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:04,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1634020295, now seen corresponding path program 1 times [2024-11-02 23:16:04,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:04,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423612932] [2024-11-02 23:16:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:04,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:04,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:04,044 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) [2024-11-02 23:16:04,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 23:16:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:04,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 23:16:04,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:04,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:04,285 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:04,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1423612932] [2024-11-02 23:16:04,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1423612932] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 23:16:04,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 23:16:04,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-02 23:16:04,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317715805] [2024-11-02 23:16:04,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 23:16:04,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 23:16:04,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:04,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 23:16:04,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-02 23:16:04,287 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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) [2024-11-02 23:16:04,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:04,452 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2024-11-02 23:16:04,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 23:16:04,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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) Word has length 31 [2024-11-02 23:16:04,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:04,453 INFO L225 Difference]: With dead ends: 63 [2024-11-02 23:16:04,453 INFO L226 Difference]: Without dead ends: 48 [2024-11-02 23:16:04,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-02 23:16:04,454 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 14 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:04,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 105 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 23:16:04,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-02 23:16:04,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-02 23:16:04,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 47 states have internal predecessors, (59), 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) [2024-11-02 23:16:04,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2024-11-02 23:16:04,461 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 31 [2024-11-02 23:16:04,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:04,462 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2024-11-02 23:16:04,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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) [2024-11-02 23:16:04,462 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2024-11-02 23:16:04,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-02 23:16:04,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:04,463 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:04,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-02 23:16:04,663 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 [2024-11-02 23:16:04,664 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:04,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1200062087, now seen corresponding path program 2 times [2024-11-02 23:16:04,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:04,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490381428] [2024-11-02 23:16:04,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:04,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:04,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:04,666 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) [2024-11-02 23:16:04,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 23:16:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:04,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-02 23:16:04,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:04,997 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:05,408 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:05,409 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:05,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490381428] [2024-11-02 23:16:05,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [490381428] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 23:16:05,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 23:16:05,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-02 23:16:05,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012341326] [2024-11-02 23:16:05,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 23:16:05,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-02 23:16:05,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:05,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-02 23:16:05,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2024-11-02 23:16:05,411 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 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) [2024-11-02 23:16:05,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:05,896 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2024-11-02 23:16:05,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-02 23:16:05,897 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 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) Word has length 43 [2024-11-02 23:16:05,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:05,898 INFO L225 Difference]: With dead ends: 87 [2024-11-02 23:16:05,898 INFO L226 Difference]: Without dead ends: 72 [2024-11-02 23:16:05,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2024-11-02 23:16:05,899 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 34 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:05,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 209 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 23:16:05,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-02 23:16:05,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-02 23:16:05,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 71 states have internal predecessors, (91), 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) [2024-11-02 23:16:05,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions. [2024-11-02 23:16:05,906 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 91 transitions. Word has length 43 [2024-11-02 23:16:05,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:05,906 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 91 transitions. [2024-11-02 23:16:05,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 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) [2024-11-02 23:16:05,907 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 91 transitions. [2024-11-02 23:16:05,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-02 23:16:05,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:05,908 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:05,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-02 23:16:06,108 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 [2024-11-02 23:16:06,109 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:06,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:06,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1576418297, now seen corresponding path program 3 times [2024-11-02 23:16:06,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:06,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122823256] [2024-11-02 23:16:06,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:06,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:06,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:06,111 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) [2024-11-02 23:16:06,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 23:16:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:06,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-02 23:16:06,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:07,235 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:07,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:16:08,271 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:08,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122823256] [2024-11-02 23:16:08,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2122823256] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 23:16:08,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 23:16:08,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-02 23:16:08,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924737674] [2024-11-02 23:16:08,272 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 23:16:08,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-02 23:16:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:08,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-02 23:16:08,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=611, Unknown=0, NotChecked=0, Total=992 [2024-11-02 23:16:08,276 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. Second operand has 32 states, 32 states have (on average 3.46875) internal successors, (111), 32 states have internal predecessors, (111), 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) [2024-11-02 23:16:09,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:09,239 INFO L93 Difference]: Finished difference Result 120 states and 163 transitions. [2024-11-02 23:16:09,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-02 23:16:09,240 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.46875) internal successors, (111), 32 states have internal predecessors, (111), 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) Word has length 67 [2024-11-02 23:16:09,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:09,241 INFO L225 Difference]: With dead ends: 120 [2024-11-02 23:16:09,241 INFO L226 Difference]: Without dead ends: 105 [2024-11-02 23:16:09,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=381, Invalid=611, Unknown=0, NotChecked=0, Total=992 [2024-11-02 23:16:09,242 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 92 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:09,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 338 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-02 23:16:09,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-02 23:16:09,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-02 23:16:09,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.2980769230769231) internal successors, (135), 104 states have internal predecessors, (135), 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) [2024-11-02 23:16:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 135 transitions. [2024-11-02 23:16:09,250 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 135 transitions. Word has length 67 [2024-11-02 23:16:09,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:09,250 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 135 transitions. [2024-11-02 23:16:09,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.46875) internal successors, (111), 32 states have internal predecessors, (111), 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) [2024-11-02 23:16:09,250 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 135 transitions. [2024-11-02 23:16:09,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-02 23:16:09,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:09,252 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:09,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-02 23:16:09,456 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 [2024-11-02 23:16:09,457 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:09,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:09,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1601337792, now seen corresponding path program 4 times [2024-11-02 23:16:09,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:09,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310326464] [2024-11-02 23:16:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:09,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:09,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:09,459 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) [2024-11-02 23:16:09,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 23:16:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:09,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-02 23:16:09,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2024-11-02 23:16:09,906 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2024-11-02 23:16:10,149 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:10,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310326464] [2024-11-02 23:16:10,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [310326464] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:16:10,150 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:16:10,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2024-11-02 23:16:10,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382491748] [2024-11-02 23:16:10,150 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:16:10,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-02 23:16:10,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:10,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-02 23:16:10,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-02 23:16:10,151 INFO L87 Difference]: Start difference. First operand 105 states and 135 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-11-02 23:16:10,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:10,866 INFO L93 Difference]: Finished difference Result 281 states and 369 transitions. [2024-11-02 23:16:10,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 23:16:10,871 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) Word has length 100 [2024-11-02 23:16:10,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:10,872 INFO L225 Difference]: With dead ends: 281 [2024-11-02 23:16:10,872 INFO L226 Difference]: Without dead ends: 189 [2024-11-02 23:16:10,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-02 23:16:10,873 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 67 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:10,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 157 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 23:16:10,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-02 23:16:10,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 107. [2024-11-02 23:16:10,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 106 states have internal predecessors, (137), 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) [2024-11-02 23:16:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 137 transitions. [2024-11-02 23:16:10,890 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 137 transitions. Word has length 100 [2024-11-02 23:16:10,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:10,890 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 137 transitions. [2024-11-02 23:16:10,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-11-02 23:16:10,890 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 137 transitions. [2024-11-02 23:16:10,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-02 23:16:10,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:16:10,895 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:16:10,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-02 23:16:11,096 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 [2024-11-02 23:16:11,096 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:16:11,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:16:11,097 INFO L85 PathProgramCache]: Analyzing trace with hash -816566274, now seen corresponding path program 1 times [2024-11-02 23:16:11,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:16:11,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638023846] [2024-11-02 23:16:11,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:16:11,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:16:11,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:16:11,099 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) [2024-11-02 23:16:11,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-02 23:16:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:16:11,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-02 23:16:11,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:16:11,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-02 23:16:11,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-02 23:16:11,314 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2024-11-02 23:16:11,314 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:16:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2024-11-02 23:16:11,618 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:16:11,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638023846] [2024-11-02 23:16:11,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [638023846] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:16:11,618 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:16:11,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 8] imperfect sequences [] total 11 [2024-11-02 23:16:11,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088147929] [2024-11-02 23:16:11,619 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:16:11,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-02 23:16:11,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:16:11,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-02 23:16:11,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-02 23:16:11,620 INFO L87 Difference]: Start difference. First operand 107 states and 137 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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) [2024-11-02 23:16:11,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:16:11,702 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions. [2024-11-02 23:16:11,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 23:16:11,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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) Word has length 100 [2024-11-02 23:16:11,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:16:11,703 INFO L225 Difference]: With dead ends: 107 [2024-11-02 23:16:11,703 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 23:16:11,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-02 23:16:11,703 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 23:16:11,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 23:16:11,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 23:16:11,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 23:16:11,704 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) [2024-11-02 23:16:11,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 23:16:11,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2024-11-02 23:16:11,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:16:11,705 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 23:16:11,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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) [2024-11-02 23:16:11,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 23:16:11,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 23:16:11,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 23:16:11,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-02 23:16:11,907 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 [2024-11-02 23:16:11,910 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2024-11-02 23:16:11,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 23:16:11,952 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 23:16:11,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:16:11 BoogieIcfgContainer [2024-11-02 23:16:11,961 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 23:16:11,961 INFO L158 Benchmark]: Toolchain (without parser) took 35507.47ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 140.4MB in the beginning and 190.6MB in the end (delta: -50.1MB). Peak memory consumption was 56.3MB. Max. memory is 8.0GB. [2024-11-02 23:16:11,961 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 23:16:11,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.96ms. Allocated memory is still 188.7MB. Free memory was 140.4MB in the beginning and 125.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-02 23:16:11,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.60ms. Allocated memory is still 188.7MB. Free memory was 125.8MB in the beginning and 124.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 23:16:11,962 INFO L158 Benchmark]: Boogie Preprocessor took 59.61ms. Allocated memory is still 188.7MB. Free memory was 124.2MB in the beginning and 121.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-02 23:16:11,962 INFO L158 Benchmark]: RCFGBuilder took 1046.88ms. Allocated memory is still 188.7MB. Free memory was 121.0MB in the beginning and 103.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-02 23:16:11,962 INFO L158 Benchmark]: TraceAbstraction took 34106.62ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 102.7MB in the beginning and 190.6MB in the end (delta: -87.9MB). Peak memory consumption was 18.6MB. Max. memory is 8.0GB. [2024-11-02 23:16:11,963 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 255.96ms. Allocated memory is still 188.7MB. Free memory was 140.4MB in the beginning and 125.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.60ms. Allocated memory is still 188.7MB. Free memory was 125.8MB in the beginning and 124.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.61ms. Allocated memory is still 188.7MB. Free memory was 124.2MB in the beginning and 121.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1046.88ms. Allocated memory is still 188.7MB. Free memory was 121.0MB in the beginning and 103.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 34106.62ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 102.7MB in the beginning and 190.6MB in the end (delta: -87.9MB). Peak memory consumption was 18.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 109]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.0s, OverallIterations: 9, TraceHistogramMax: 25, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 293 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 293 mSDsluCounter, 1326 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1021 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1124 IncrementalHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 305 mSDtfsCounter, 1124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 805 GetRequests, 707 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 17.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=8, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 84 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 792 ConstructedInterpolants, 32 QuantifiedInterpolants, 2682 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1216 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 3700/4386 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-02 23:16:12,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...