/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-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2018/Problem13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 09:56:35,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 09:56:35,549 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 09:56:35,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 09:56:35,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 09:56:35,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 09:56:35,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 09:56:35,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 09:56:35,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 09:56:35,580 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 09:56:35,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 09:56:35,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 09:56:35,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 09:56:35,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 09:56:35,582 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 09:56:35,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 09:56:35,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 09:56:35,583 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 09:56:35,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 09:56:35,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 09:56:35,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 09:56:35,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 09:56:35,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 09:56:35,584 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 09:56:35,584 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 09:56:35,584 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 09:56:35,584 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 09:56:35,584 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 09:56:35,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 09:56:35,584 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 09:56:35,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 09:56:35,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 09:56:35,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 09:56:35,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 09:56:35,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:56:35,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 09:56:35,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 09:56:35,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 09:56:35,586 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 09:56:35,586 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 09:56:35,586 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 09:56:35,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 09:56:35,587 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 09:56:35,587 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 09:56:35,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 09:56:35,588 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 09:56:35,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 09:56:35,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 09:56:35,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 09:56:35,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 09:56:35,815 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 09:56:35,816 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 09:56:35,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2018/Problem13.c [2023-12-16 09:56:36,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 09:56:37,824 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 09:56:37,824 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem13.c [2023-12-16 09:56:37,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be663fd0/f066c26f608042f2a36aeb0900ec7103/FLAG8bac1e90b [2023-12-16 09:56:37,927 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be663fd0/f066c26f608042f2a36aeb0900ec7103 [2023-12-16 09:56:37,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 09:56:37,930 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 09:56:37,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 09:56:37,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 09:56:37,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 09:56:37,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:56:37" (1/1) ... [2023-12-16 09:56:37,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e26d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:37, skipping insertion in model container [2023-12-16 09:56:37,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:56:37" (1/1) ... [2023-12-16 09:56:38,363 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 09:56:38,614 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem13.c[778,791] [2023-12-16 09:56:38,635 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem13.c[817,830] [2023-12-16 09:56:52,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:56:52,277 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 09:56:52,287 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem13.c[778,791] [2023-12-16 09:56:52,287 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2018/Problem13.c[817,830] [2023-12-16 09:56:53,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:56:54,650 INFO L206 MainTranslator]: Completed translation [2023-12-16 09:56:54,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54 WrapperNode [2023-12-16 09:56:54,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 09:56:54,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 09:56:54,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 09:56:54,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 09:56:54,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:55,246 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:56,528 INFO L138 Inliner]: procedures = 710, calls = 701, calls flagged for inlining = 597, calls inlined = 597, statements flattened = 108769 [2023-12-16 09:56:56,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 09:56:56,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 09:56:56,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 09:56:56,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 09:56:56,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:56,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:56,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:57,088 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 09:56:57,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:57,089 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:57,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:57,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:57,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:57,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:58,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 09:56:58,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 09:56:58,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 09:56:58,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 09:56:58,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (1/1) ... [2023-12-16 09:56:58,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:56:58,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 09:56:58,263 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 09:56:58,275 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 09:56:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 09:56:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 09:56:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 09:56:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 09:56:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_a [2023-12-16 09:56:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_a [2023-12-16 09:56:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_b [2023-12-16 09:56:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_b [2023-12-16 09:56:58,763 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 09:56:58,764 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 09:57:18,283 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 09:57:18,407 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 09:57:18,407 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 09:57:18,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:57:18 BoogieIcfgContainer [2023-12-16 09:57:18,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 09:57:18,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 09:57:18,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 09:57:18,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 09:57:18,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:56:37" (1/3) ... [2023-12-16 09:57:18,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f806bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:57:18, skipping insertion in model container [2023-12-16 09:57:18,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:56:54" (2/3) ... [2023-12-16 09:57:18,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f806bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:57:18, skipping insertion in model container [2023-12-16 09:57:18,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:57:18" (3/3) ... [2023-12-16 09:57:18,416 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13.c [2023-12-16 09:57:18,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 09:57:18,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 09:57:18,499 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 09:57:18,503 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;@2a1d0c65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 09:57:18,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 09:57:18,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 3528 states, 3423 states have (on average 1.8258837277242186) internal successors, (6250), 3425 states have internal predecessors, (6250), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-16 09:57:18,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-16 09:57:18,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:57:18,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:57:18,533 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION === [reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION, reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:57:18,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:57:18,537 INFO L85 PathProgramCache]: Analyzing trace with hash 990205398, now seen corresponding path program 1 times [2023-12-16 09:57:18,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:57:18,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221478384] [2023-12-16 09:57:18,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:57:18,549 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 09:57:18,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:57:18,551 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 09:57:18,560 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 09:57:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:57:18,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 09:57:18,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:57:18,991 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 09:57:18,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:57:18,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:57:18,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221478384] [2023-12-16 09:57:18,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221478384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:57:18,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:57:18,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:57:18,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096592673] [2023-12-16 09:57:18,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:57:18,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 09:57:18,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:57:19,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 09:57:19,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 09:57:19,029 INFO L87 Difference]: Start difference. First operand has 3528 states, 3423 states have (on average 1.8258837277242186) internal successors, (6250), 3425 states have internal predecessors, (6250), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:57:37,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:57:37,379 INFO L93 Difference]: Finished difference Result 9545 states and 17562 transitions. [2023-12-16 09:57:37,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 09:57:37,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-16 09:57:37,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:57:37,423 INFO L225 Difference]: With dead ends: 9545 [2023-12-16 09:57:37,423 INFO L226 Difference]: Without dead ends: 6012 [2023-12-16 09:57:37,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 09:57:37,436 INFO L413 NwaCegarLoop]: 6276 mSDtfsCounter, 3161 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 13271 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3161 SdHoareTripleChecker+Valid, 10180 SdHoareTripleChecker+Invalid, 13883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 13271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2023-12-16 09:57:37,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3161 Valid, 10180 Invalid, 13883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [612 Valid, 13271 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time] [2023-12-16 09:57:37,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2023-12-16 09:57:37,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 5242. [2023-12-16 09:57:37,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5140 states have (on average 1.7846303501945526) internal successors, (9173), 5239 states have internal predecessors, (9173), 100 states have call successors, (100), 2 states have call predecessors, (100), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:57:37,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 9273 transitions. [2023-12-16 09:57:37,608 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 9273 transitions. Word has length 12 [2023-12-16 09:57:37,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:57:37,609 INFO L495 AbstractCegarLoop]: Abstraction has 5242 states and 9273 transitions. [2023-12-16 09:57:37,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:57:37,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 9273 transitions. [2023-12-16 09:57:37,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-16 09:57:37,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:57:37,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:57:37,633 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 (2)] Forceful destruction successful, exit code 0 [2023-12-16 09:57:37,815 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 09:57:37,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION === [reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION, reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:57:37,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:57:37,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1807079401, now seen corresponding path program 1 times [2023-12-16 09:57:37,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:57:37,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523493144] [2023-12-16 09:57:37,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:57:37,818 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 09:57:37,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:57:37,820 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 09:57:37,825 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 09:57:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:57:38,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 09:57:38,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:57:38,288 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 09:57:38,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:57:38,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:57:38,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523493144] [2023-12-16 09:57:38,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523493144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:57:38,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:57:38,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:57:38,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218861047] [2023-12-16 09:57:38,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:57:38,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 09:57:38,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:57:38,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 09:57:38,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 09:57:38,291 INFO L87 Difference]: Start difference. First operand 5242 states and 9273 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 09:57:40,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 09:57:40,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 09:57:40,543 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 222 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 09:57:40,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1768 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 09:57:40,545 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reach_error_bErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 09:57:40,551 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 09:57:40,575 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 09:57:40,580 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 09:57:40,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 09:57:40,752 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (5242states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (3596 states constructed, input type IntersectNwa). [2023-12-16 09:57:40,753 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reach_error_aErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 09:57:40,756 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-16 09:57:40,758 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 09:57:40,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:57:40 BoogieIcfgContainer [2023-12-16 09:57:40,760 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 09:57:40,760 INFO L158 Benchmark]: Toolchain (without parser) took 62830.52ms. Allocated memory was 233.8MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 150.3MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 961.0MB. Max. memory is 8.0GB. [2023-12-16 09:57:40,761 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 154.1MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:57:40,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 16718.89ms. Allocated memory was 233.8MB in the beginning and 542.1MB in the end (delta: 308.3MB). Free memory was 149.7MB in the beginning and 138.7MB in the end (delta: 11.0MB). Peak memory consumption was 498.6MB. Max. memory is 8.0GB. [2023-12-16 09:57:40,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 1877.19ms. Allocated memory was 542.1MB in the beginning and 990.9MB in the end (delta: 448.8MB). Free memory was 138.7MB in the beginning and 546.1MB in the end (delta: -407.4MB). Peak memory consumption was 116.4MB. Max. memory is 8.0GB. [2023-12-16 09:57:40,762 INFO L158 Benchmark]: Boogie Preprocessor took 1687.14ms. Allocated memory was 990.9MB in the beginning and 2.7GB in the end (delta: 1.7GB). Free memory was 546.1MB in the beginning and 2.1GB in the end (delta: -1.6GB). Peak memory consumption was 149.4MB. Max. memory is 8.0GB. [2023-12-16 09:57:40,762 INFO L158 Benchmark]: RCFGBuilder took 20190.81ms. Allocated memory was 2.7GB in the beginning and 4.1GB in the end (delta: 1.4GB). Free memory was 2.1GB in the beginning and 3.5GB in the end (delta: -1.4GB). Peak memory consumption was 840.4MB. Max. memory is 8.0GB. [2023-12-16 09:57:40,762 INFO L158 Benchmark]: TraceAbstraction took 22350.30ms. Allocated memory is still 4.1GB. Free memory was 3.5GB in the beginning and 3.0GB in the end (delta: 433.6MB). Peak memory consumption was 433.1MB. Max. memory is 8.0GB. [2023-12-16 09:57:40,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 154.1MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 16718.89ms. Allocated memory was 233.8MB in the beginning and 542.1MB in the end (delta: 308.3MB). Free memory was 149.7MB in the beginning and 138.7MB in the end (delta: 11.0MB). Peak memory consumption was 498.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 1877.19ms. Allocated memory was 542.1MB in the beginning and 990.9MB in the end (delta: 448.8MB). Free memory was 138.7MB in the beginning and 546.1MB in the end (delta: -407.4MB). Peak memory consumption was 116.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 1687.14ms. Allocated memory was 990.9MB in the beginning and 2.7GB in the end (delta: 1.7GB). Free memory was 546.1MB in the beginning and 2.1GB in the end (delta: -1.6GB). Peak memory consumption was 149.4MB. Max. memory is 8.0GB. * RCFGBuilder took 20190.81ms. Allocated memory was 2.7GB in the beginning and 4.1GB in the end (delta: 1.4GB). Free memory was 2.1GB in the beginning and 3.5GB in the end (delta: -1.4GB). Peak memory consumption was 840.4MB. Max. memory is 8.0GB. * TraceAbstraction took 22350.30ms. Allocated memory is still 4.1GB. Free memory was 3.5GB in the beginning and 3.0GB in the end (delta: 433.6MB). Peak memory consumption was 433.1MB. 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: 14]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 14). Cancelled while NwaCegarLoop was constructing difference of abstraction (5242states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (3596 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 13). Cancelled while NwaCegarLoop was constructing difference of abstraction (5242states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (3596 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 3528 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 22.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3383 SdHoareTripleChecker+Valid, 20.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3383 mSDsluCounter, 11948 SdHoareTripleChecker+Invalid, 16.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4630 mSDsCounter, 631 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15007 IncrementalHoareTripleChecker+Invalid, 15638 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 631 mSolverCounterUnsat, 7318 mSDtfsCounter, 15007 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5242occurred in iteration=1, 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: 0.2s AutomataMinimizationTime, 1 MinimizatonAttempts, 770 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 427 SizeOfPredicates, 0 NumberOfNonLiveVariables, 700 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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