/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/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-43.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 13:34:11,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 13:34:11,645 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 13:34:11,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 13:34:11,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 13:34:11,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 13:34:11,672 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 13:34:11,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 13:34:11,673 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 13:34:11,676 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 13:34:11,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 13:34:11,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 13:34:11,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 13:34:11,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 13:34:11,678 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 13:34:11,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 13:34:11,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 13:34:11,679 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 13:34:11,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 13:34:11,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 13:34:11,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 13:34:11,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 13:34:11,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 13:34:11,681 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 13:34:11,681 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 13:34:11,681 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 13:34:11,681 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 13:34:11,681 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 13:34:11,681 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 13:34:11,681 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 13:34:11,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 13:34:11,682 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 13:34:11,682 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 13:34:11,682 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 13:34:11,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:34:11,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 13:34:11,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 13:34:11,683 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 13:34:11,683 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 13:34:11,683 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 13:34:11,683 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 13:34:11,684 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 13:34:11,684 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 13:34:11,684 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 13:34:11,684 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 13:34:11,684 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 13:34:11,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 13:34:11,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 13:34:11,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 13:34:11,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 13:34:11,914 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 13:34:11,915 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 13:34:11,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-43.i [2023-12-16 13:34:12,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 13:34:13,090 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 13:34:13,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-43.i [2023-12-16 13:34:13,106 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd17e1a02/27e6d4687f30496396491e49da6ee842/FLAG14517479e [2023-12-16 13:34:13,117 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd17e1a02/27e6d4687f30496396491e49da6ee842 [2023-12-16 13:34:13,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 13:34:13,119 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 13:34:13,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 13:34:13,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 13:34:13,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 13:34:13,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6291de40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13, skipping insertion in model container [2023-12-16 13:34:13,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,171 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 13:34:13,296 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-43.i[916,929] [2023-12-16 13:34:13,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:34:13,391 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 13:34:13,401 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-43.i[916,929] [2023-12-16 13:34:13,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:34:13,450 INFO L206 MainTranslator]: Completed translation [2023-12-16 13:34:13,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13 WrapperNode [2023-12-16 13:34:13,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 13:34:13,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 13:34:13,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 13:34:13,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 13:34:13,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,500 INFO L138 Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 210 [2023-12-16 13:34:13,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 13:34:13,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 13:34:13,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 13:34:13,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 13:34:13,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,512 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,530 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 13:34:13,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,543 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,545 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,548 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 13:34:13,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 13:34:13,549 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 13:34:13,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 13:34:13,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (1/1) ... [2023-12-16 13:34:13,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:34:13,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 13:34:13,626 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 13:34:13,652 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 13:34:13,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 13:34:13,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 13:34:13,654 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 13:34:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 13:34:13,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 13:34:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 13:34:13,726 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 13:34:13,728 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 13:34:22,783 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 13:34:22,823 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 13:34:22,823 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 13:34:22,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:34:22 BoogieIcfgContainer [2023-12-16 13:34:22,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 13:34:22,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 13:34:22,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 13:34:22,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 13:34:22,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:34:13" (1/3) ... [2023-12-16 13:34:22,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359a4b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:34:22, skipping insertion in model container [2023-12-16 13:34:22,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:13" (2/3) ... [2023-12-16 13:34:22,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359a4b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:34:22, skipping insertion in model container [2023-12-16 13:34:22,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:34:22" (3/3) ... [2023-12-16 13:34:22,829 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-43.i [2023-12-16 13:34:22,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 13:34:22,843 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 13:34:22,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 13:34:22,887 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;@2a417902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 13:34:22,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 13:34:22,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 52 states have internal predecessors, (74), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 13:34:22,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-16 13:34:22,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:34:22,905 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:34:22,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:34:22,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:34:22,909 INFO L85 PathProgramCache]: Analyzing trace with hash 279280051, now seen corresponding path program 1 times [2023-12-16 13:34:22,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:34:22,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475057104] [2023-12-16 13:34:22,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:34:22,920 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 13:34:22,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:34:22,922 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 13:34:22,929 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 13:34:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:34:23,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 13:34:23,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:34:23,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 666 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2023-12-16 13:34:23,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:34:23,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:34:23,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475057104] [2023-12-16 13:34:23,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475057104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:34:23,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:34:23,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 13:34:23,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774333412] [2023-12-16 13:34:23,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:34:23,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 13:34:23,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:34:23,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 13:34:23,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:34:23,504 INFO L87 Difference]: Start difference. First operand has 80 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 52 states have internal predecessors, (74), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-16 13:34:27,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:34:27,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:34:27,763 INFO L93 Difference]: Finished difference Result 159 states and 277 transitions. [2023-12-16 13:34:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 13:34:27,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 168 [2023-12-16 13:34:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:34:27,770 INFO L225 Difference]: With dead ends: 159 [2023-12-16 13:34:27,770 INFO L226 Difference]: Without dead ends: 78 [2023-12-16 13:34:27,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:34:27,774 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-16 13:34:27,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 13:34:27,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-16 13:34:27,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-16 13:34:27,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.36) internal successors, (68), 50 states have internal predecessors, (68), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 13:34:27,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 120 transitions. [2023-12-16 13:34:27,819 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 120 transitions. Word has length 168 [2023-12-16 13:34:27,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:34:27,820 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 120 transitions. [2023-12-16 13:34:27,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-16 13:34:27,820 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 120 transitions. [2023-12-16 13:34:27,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-16 13:34:27,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:34:27,826 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:34:27,838 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 13:34:28,035 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 13:34:28,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:34:28,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:34:28,036 INFO L85 PathProgramCache]: Analyzing trace with hash -404731225, now seen corresponding path program 1 times [2023-12-16 13:34:28,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:34:28,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849223759] [2023-12-16 13:34:28,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:34:28,037 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 13:34:28,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:34:28,039 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 13:34:28,040 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 13:34:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:34:28,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 13:34:28,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:34:29,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-16 13:34:29,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:34:29,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:34:29,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849223759] [2023-12-16 13:34:29,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849223759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:34:29,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:34:29,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 13:34:29,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954811207] [2023-12-16 13:34:29,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:34:29,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 13:34:29,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:34:29,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 13:34:29,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 13:34:29,528 INFO L87 Difference]: Start difference. First operand 78 states and 120 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-16 13:34:32,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:34:34,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:34:39,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:34:43,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:34:47,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:34:51,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:34:55,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:34:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:34:55,506 INFO L93 Difference]: Finished difference Result 233 states and 359 transitions. [2023-12-16 13:34:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 13:34:55,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 168 [2023-12-16 13:34:55,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:34:55,510 INFO L225 Difference]: With dead ends: 233 [2023-12-16 13:34:55,510 INFO L226 Difference]: Without dead ends: 156 [2023-12-16 13:34:55,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 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 13:34:55,512 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 75 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 53 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2023-12-16 13:34:55,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 340 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 15 Invalid, 5 Unknown, 0 Unchecked, 25.9s Time] [2023-12-16 13:34:55,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-12-16 13:34:55,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 126. [2023-12-16 13:34:55,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 13:34:55,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 193 transitions. [2023-12-16 13:34:55,539 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 193 transitions. Word has length 168 [2023-12-16 13:34:55,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:34:55,539 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 193 transitions. [2023-12-16 13:34:55,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-16 13:34:55,539 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 193 transitions. [2023-12-16 13:34:55,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 13:34:55,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:34:55,541 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:34:55,554 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 13:34:55,744 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 13:34:55,745 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:34:55,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:34:55,745 INFO L85 PathProgramCache]: Analyzing trace with hash -418055870, now seen corresponding path program 1 times [2023-12-16 13:34:55,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:34:55,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605968302] [2023-12-16 13:34:55,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:34:55,746 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 13:34:55,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:34:55,747 INFO L229 MonitoredProcess]: Starting monitored process 4 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 13:34:55,749 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 (4)] Waiting until timeout for monitored process [2023-12-16 13:34:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:34:56,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 13:34:56,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:34:56,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-16 13:34:56,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:34:56,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:34:56,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605968302] [2023-12-16 13:34:56,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605968302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:34:56,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:34:56,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 13:34:56,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953780659] [2023-12-16 13:34:56,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:34:56,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 13:34:56,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:34:56,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 13:34:56,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 13:34:56,166 INFO L87 Difference]: Start difference. First operand 126 states and 193 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-16 13:35:00,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:35:04,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:35:08,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:35:08,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:35:08,808 INFO L93 Difference]: Finished difference Result 280 states and 431 transitions. [2023-12-16 13:35:08,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 13:35:08,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 169 [2023-12-16 13:35:08,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:35:08,817 INFO L225 Difference]: With dead ends: 280 [2023-12-16 13:35:08,817 INFO L226 Difference]: Without dead ends: 203 [2023-12-16 13:35:08,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 13:35:08,819 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 114 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-12-16 13:35:08,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 337 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2023-12-16 13:35:08,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-16 13:35:08,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 128. [2023-12-16 13:35:08,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 73 states have internal predecessors, (91), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 13:35:08,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 195 transitions. [2023-12-16 13:35:08,844 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 195 transitions. Word has length 169 [2023-12-16 13:35:08,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:35:08,845 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 195 transitions. [2023-12-16 13:35:08,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-16 13:35:08,846 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 195 transitions. [2023-12-16 13:35:08,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-16 13:35:08,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:35:08,851 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:35:08,864 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 (4)] Ended with exit code 0 [2023-12-16 13:35:09,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 13:35:09,066 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:35:09,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:35:09,066 INFO L85 PathProgramCache]: Analyzing trace with hash -877301121, now seen corresponding path program 1 times [2023-12-16 13:35:09,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:35:09,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669675153] [2023-12-16 13:35:09,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:35:09,067 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 13:35:09,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:35:09,069 INFO L229 MonitoredProcess]: Starting monitored process 5 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 13:35:09,070 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 (5)] Waiting until timeout for monitored process [2023-12-16 13:35:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:35:09,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 13:35:09,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:35:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 629 proven. 99 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2023-12-16 13:35:11,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:35:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 45 proven. 102 refuted. 0 times theorem prover too weak. 1153 trivial. 0 not checked. [2023-12-16 13:35:12,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:35:12,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669675153] [2023-12-16 13:35:12,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669675153] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 13:35:12,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 13:35:12,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-16 13:35:12,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384885765] [2023-12-16 13:35:12,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 13:35:12,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 13:35:12,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:35:12,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 13:35:12,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-16 13:35:12,127 INFO L87 Difference]: Start difference. First operand 128 states and 195 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (44), 3 states have call predecessors, (44), 7 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-16 13:35:17,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:35:21,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:35:25,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:35:28,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-16 13:35:30,629 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:35:30,629 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 13:35:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 13:35:30,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 328 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=315, Invalid=741, Unknown=0, NotChecked=0, Total=1056 [2023-12-16 13:35:30,631 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 158 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2023-12-16 13:35:30,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 351 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 397 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2023-12-16 13:35:30,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 13:35:30,651 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 (5)] Forceful destruction successful, exit code 0 [2023-12-16 13:35:30,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 13:35:30,846 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (128states) and FLOYD_HOARE automaton (currently 28 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (180 states constructed, input type IntersectNwa). [2023-12-16 13:35:30,849 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 13:35:30,851 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 13:35:30,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:35:30 BoogieIcfgContainer [2023-12-16 13:35:30,853 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 13:35:30,853 INFO L158 Benchmark]: Toolchain (without parser) took 77734.25ms. Allocated memory is still 315.6MB. Free memory was 262.7MB in the beginning and 132.3MB in the end (delta: 130.3MB). Peak memory consumption was 131.1MB. Max. memory is 8.0GB. [2023-12-16 13:35:30,855 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 231.7MB. Free memory is still 181.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 13:35:30,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.23ms. Allocated memory is still 315.6MB. Free memory was 262.4MB in the beginning and 245.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 13:35:30,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.46ms. Allocated memory is still 315.6MB. Free memory was 245.1MB in the beginning and 242.1MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 13:35:30,856 INFO L158 Benchmark]: Boogie Preprocessor took 46.66ms. Allocated memory is still 315.6MB. Free memory was 242.1MB in the beginning and 237.2MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 13:35:30,856 INFO L158 Benchmark]: RCFGBuilder took 9275.07ms. Allocated memory is still 315.6MB. Free memory was 237.2MB in the beginning and 259.8MB in the end (delta: -22.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 13:35:30,857 INFO L158 Benchmark]: TraceAbstraction took 68028.33ms. Allocated memory is still 315.6MB. Free memory was 259.3MB in the beginning and 132.3MB in the end (delta: 127.0MB). Peak memory consumption was 127.0MB. Max. memory is 8.0GB. [2023-12-16 13:35:30,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 231.7MB. Free memory is still 181.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 326.23ms. Allocated memory is still 315.6MB. Free memory was 262.4MB in the beginning and 245.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.46ms. Allocated memory is still 315.6MB. Free memory was 245.1MB in the beginning and 242.1MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.66ms. Allocated memory is still 315.6MB. Free memory was 242.1MB in the beginning and 237.2MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 9275.07ms. Allocated memory is still 315.6MB. Free memory was 237.2MB in the beginning and 259.8MB in the end (delta: -22.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 68028.33ms. Allocated memory is still 315.6MB. Free memory was 259.3MB in the beginning and 132.3MB in the end (delta: 127.0MB). Peak memory consumption was 127.0MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was constructing difference of abstraction (128states) and FLOYD_HOARE automaton (currently 28 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (180 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.0s, OverallIterations: 4, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 61.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 mSolverCounterUnknown, 355 SdHoareTripleChecker+Valid, 60.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 347 mSDsluCounter, 1145 SdHoareTripleChecker+Invalid, 59.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 579 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 431 IncrementalHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 566 mSDtfsCounter, 431 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 863 GetRequests, 827 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 105 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 675 NumberOfCodeBlocks, 675 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 840 ConstructedInterpolants, 0 QuantifiedInterpolants, 2353 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1187 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 6299/6500 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