/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.rether.3.prop1-back-serstep.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 22:23:01,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 22:23:01,803 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-12-16 22:23:01,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 22:23:01,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 22:23:01,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 22:23:01,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 22:23:01,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 22:23:01,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 22:23:01,835 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 22:23:01,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 22:23:01,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 22:23:01,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 22:23:01,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 22:23:01,839 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 22:23:01,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 22:23:01,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 22:23:01,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 22:23:01,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 22:23:01,841 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 22:23:01,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 22:23:01,841 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 22:23:01,841 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 22:23:01,842 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 22:23:01,842 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 22:23:01,842 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 22:23:01,842 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 22:23:01,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 22:23:01,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 22:23:01,843 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 22:23:01,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 22:23:01,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 22:23:01,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 22:23:01,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 22:23:01,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 22:23:01,844 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 22:23:01,844 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 22:23:01,844 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 22:23:01,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 22:23:01,844 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 22:23:01,845 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 22:23:01,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 22:23:01,845 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 22:23:01,845 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 22:23:02,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 22:23:02,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 22:23:02,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 22:23:02,057 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 22:23:02,059 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 22:23:02,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.rether.3.prop1-back-serstep.c [2023-12-16 22:23:03,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 22:23:03,474 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 22:23:03,475 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.rether.3.prop1-back-serstep.c [2023-12-16 22:23:03,510 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b68f7ca2/c6402bae1765445db4f6f4936bdb8e49/FLAG464badf6c [2023-12-16 22:23:03,524 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b68f7ca2/c6402bae1765445db4f6f4936bdb8e49 [2023-12-16 22:23:03,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 22:23:03,527 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 22:23:03,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 22:23:03,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 22:23:03,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 22:23:03,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:23:03" (1/1) ... [2023-12-16 22:23:03,534 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1313d93b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:03, skipping insertion in model container [2023-12-16 22:23:03,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:23:03" (1/1) ... [2023-12-16 22:23:03,667 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 22:23:03,847 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.rether.3.prop1-back-serstep.c[1174,1187] [2023-12-16 22:23:04,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 22:23:04,513 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 22:23:04,525 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.rether.3.prop1-back-serstep.c[1174,1187] [2023-12-16 22:23:04,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 22:23:04,808 INFO L206 MainTranslator]: Completed translation [2023-12-16 22:23:04,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04 WrapperNode [2023-12-16 22:23:04,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 22:23:04,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 22:23:04,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 22:23:04,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 22:23:04,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:04,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,155 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 8877 [2023-12-16 22:23:05,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 22:23:05,156 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 22:23:05,156 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 22:23:05,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 22:23:05,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,218 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,315 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 22:23:05,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 22:23:05,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 22:23:05,531 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 22:23:05,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 22:23:05,532 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (1/1) ... [2023-12-16 22:23:05,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 22:23:05,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 22:23:05,601 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) [2023-12-16 22:23:05,637 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 [2023-12-16 22:23:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 22:23:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 22:23:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 22:23:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 22:23:06,448 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 22:23:06,450 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 22:23:28,792 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 22:23:29,013 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 22:23:29,014 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 22:23:29,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:23:29 BoogieIcfgContainer [2023-12-16 22:23:29,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 22:23:29,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 22:23:29,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 22:23:29,018 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 22:23:29,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 10:23:03" (1/3) ... [2023-12-16 22:23:29,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfccc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:23:29, skipping insertion in model container [2023-12-16 22:23:29,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:23:04" (2/3) ... [2023-12-16 22:23:29,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfccc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:23:29, skipping insertion in model container [2023-12-16 22:23:29,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:23:29" (3/3) ... [2023-12-16 22:23:29,022 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.rether.3.prop1-back-serstep.c [2023-12-16 22:23:29,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 22:23:29,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 22:23:29,062 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 22:23:29,066 INFO L357 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, mHoare=true, 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;@65bd870, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 22:23:29,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 22:23:29,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-12-16 22:23:29,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-16 22:23:29,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 22:23:29,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-16 22:23:29,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 22:23:29,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 22:23:29,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-16 22:23:29,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 22:23:29,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926973020] [2023-12-16 22:23:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 22:23:29,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 22:23:29,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 22:23:29,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 22:23:29,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 22:23:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 22:23:30,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 22:23:30,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 22:23:30,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 22:23:30,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 22:23:30,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 22:23:30,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926973020] [2023-12-16 22:23:30,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926973020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 22:23:30,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 22:23:30,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 22:23:30,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604425330] [2023-12-16 22:23:30,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 22:23:30,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 22:23:30,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 22:23:30,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 22:23:30,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 22:23:30,815 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-12-16 22:23:35,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 22:23:39,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 22:23:44,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 22:23:44,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 22:23:44,771 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-16 22:23:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 22:23:44,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-12-16 22:23:44,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 22:23:44,862 INFO L225 Difference]: With dead ends: 16 [2023-12-16 22:23:44,862 INFO L226 Difference]: Without dead ends: 9 [2023-12-16 22:23:44,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 22:23:44,869 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-16 22:23:44,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2023-12-16 22:23:44,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-16 22:23:44,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-16 22:23:44,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2023-12-16 22:23:44,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-16 22:23:44,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-16 22:23:44,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 22:23:44,904 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-16 22:23:44,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-12-16 22:23:44,905 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-16 22:23:44,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 22:23:44,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 22:23:44,905 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-16 22:23:44,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 22:23:45,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 22:23:45,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 22:23:45,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 22:23:45,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-16 22:23:45,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 22:23:45,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937601996] [2023-12-16 22:23:45,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 22:23:45,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 22:23:45,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 22:23:45,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 22:23:45,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 22:24:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 22:24:07,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 7618 conjuncts, 194 conjunts are in the unsatisfiable core [2023-12-16 22:24:07,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 22:24:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 22:24:08,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 22:24:13,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 22:24:13,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 22:24:13,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937601996] [2023-12-16 22:24:13,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937601996] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 22:24:13,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 22:24:13,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-16 22:24:13,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186210806] [2023-12-16 22:24:13,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 22:24:13,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 22:24:13,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 22:24:13,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 22:24:13,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 22:24:13,252 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) Received shutdown request... [2023-12-16 22:24:15,441 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 22:24:15,443 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 22:24:16,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 22:24:16,642 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 22:24:16,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-16 22:24:16,657 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 22:24:16,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 22:24:16,658 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 22:24:16,659 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 22:24:16,662 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-16 22:24:16,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 22:24:16,670 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 22:24:16,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 10:24:16 BoogieIcfgContainer [2023-12-16 22:24:16,672 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 22:24:16,673 INFO L158 Benchmark]: Toolchain (without parser) took 73145.45ms. Allocated memory was 227.5MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 153.8MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 197.8MB. Max. memory is 8.0GB. [2023-12-16 22:24:16,676 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 227.5MB. Free memory was 177.4MB in the beginning and 177.2MB in the end (delta: 155.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 22:24:16,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1279.44ms. Allocated memory was 227.5MB in the beginning and 276.8MB in the end (delta: 49.3MB). Free memory was 153.5MB in the beginning and 173.3MB in the end (delta: -19.8MB). Peak memory consumption was 96.6MB. Max. memory is 8.0GB. [2023-12-16 22:24:16,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 346.11ms. Allocated memory was 276.8MB in the beginning and 487.6MB in the end (delta: 210.8MB). Free memory was 173.3MB in the beginning and 363.1MB in the end (delta: -189.8MB). Peak memory consumption was 73.9MB. Max. memory is 8.0GB. [2023-12-16 22:24:16,681 INFO L158 Benchmark]: Boogie Preprocessor took 373.92ms. Allocated memory is still 487.6MB. Free memory was 363.1MB in the beginning and 352.1MB in the end (delta: 11.0MB). Peak memory consumption was 78.1MB. Max. memory is 8.0GB. [2023-12-16 22:24:16,683 INFO L158 Benchmark]: RCFGBuilder took 23483.12ms. Allocated memory was 487.6MB in the beginning and 1.2GB in the end (delta: 723.5MB). Free memory was 352.1MB in the beginning and 874.3MB in the end (delta: -522.2MB). Peak memory consumption was 753.4MB. Max. memory is 8.0GB. [2023-12-16 22:24:16,684 INFO L158 Benchmark]: TraceAbstraction took 47656.41ms. Allocated memory was 1.2GB in the beginning and 1.5GB in the end (delta: 242.2MB). Free memory was 873.8MB in the beginning and 1.2GB in the end (delta: -308.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 22:24:16,688 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 227.5MB. Free memory was 177.4MB in the beginning and 177.2MB in the end (delta: 155.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1279.44ms. Allocated memory was 227.5MB in the beginning and 276.8MB in the end (delta: 49.3MB). Free memory was 153.5MB in the beginning and 173.3MB in the end (delta: -19.8MB). Peak memory consumption was 96.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 346.11ms. Allocated memory was 276.8MB in the beginning and 487.6MB in the end (delta: 210.8MB). Free memory was 173.3MB in the beginning and 363.1MB in the end (delta: -189.8MB). Peak memory consumption was 73.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 373.92ms. Allocated memory is still 487.6MB. Free memory was 363.1MB in the beginning and 352.1MB in the end (delta: 11.0MB). Peak memory consumption was 78.1MB. Max. memory is 8.0GB. * RCFGBuilder took 23483.12ms. Allocated memory was 487.6MB in the beginning and 1.2GB in the end (delta: 723.5MB). Free memory was 352.1MB in the beginning and 874.3MB in the end (delta: -522.2MB). Peak memory consumption was 753.4MB. Max. memory is 8.0GB. * TraceAbstraction took 47656.41ms. Allocated memory was 1.2GB in the beginning and 1.5GB in the end (delta: 242.2MB). Free memory was 873.8MB in the beginning and 1.2GB in the end (delta: -308.3MB). There was no memory consumed. 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 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 14.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 14.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 20.5s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 4 QuantifiedInterpolants, 1916 SizeOfPredicates, 289 NumberOfNonLiveVariables, 8402 ConjunctsInSsa, 204 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown