/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_fillercode_fillercodesize_ps-cn-250_file-74.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:08:39,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:08:39,699 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 11:08:39,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:08:39,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:08:39,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:08:39,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:08:39,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:08:39,742 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:08:39,743 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:08:39,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:08:39,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:08:39,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:08:39,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:08:39,744 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:08:39,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:08:39,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:08:39,745 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:08:39,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:08:39,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:08:39,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:08:39,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:08:39,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:08:39,749 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:08:39,749 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:08:39,749 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:08:39,749 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:08:39,750 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:08:39,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:08:39,750 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:08:39,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:08:39,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:08:39,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:08:39,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:08:39,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:08:39,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:08:39,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:08:39,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:08:39,752 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:08:39,752 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:08:39,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:08:39,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:08:39,752 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:08:39,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:08:39,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:08:39,753 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:08:39,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:08:39,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:08:39,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:08:39,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:08:39,944 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:08:39,944 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:08:39,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-74.i [2023-12-16 11:08:41,041 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:08:41,235 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:08:41,235 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-74.i [2023-12-16 11:08:41,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cc70b416/3a2aec8a7b7d4aebb3df60516a05ef4b/FLAG377efe1b5 [2023-12-16 11:08:41,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cc70b416/3a2aec8a7b7d4aebb3df60516a05ef4b [2023-12-16 11:08:41,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:08:41,265 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:08:41,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:08:41,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:08:41,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:08:41,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2656afd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41, skipping insertion in model container [2023-12-16 11:08:41,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,299 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:08:41,432 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_fillercode_fillercodesize_ps-cn-250_file-74.i[916,929] [2023-12-16 11:08:41,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:08:41,602 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:08:41,622 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_fillercode_fillercodesize_ps-cn-250_file-74.i[916,929] [2023-12-16 11:08:41,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:08:41,703 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:08:41,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41 WrapperNode [2023-12-16 11:08:41,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:08:41,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:08:41,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:08:41,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:08:41,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,751 INFO L138 Inliner]: procedures = 27, calls = 100, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 486 [2023-12-16 11:08:41,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:08:41,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:08:41,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:08:41,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:08:41,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,783 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,797 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 11:08:41,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,814 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,821 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,833 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:08:41,834 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:08:41,834 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:08:41,834 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:08:41,835 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (1/1) ... [2023-12-16 11:08:41,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:08:41,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:08:41,873 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 11:08:41,898 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 11:08:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:08:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:08:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:08:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:08:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:08:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:08:42,028 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:08:42,030 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:08:55,411 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:08:55,467 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:08:55,468 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:08:55,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:08:55 BoogieIcfgContainer [2023-12-16 11:08:55,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:08:55,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:08:55,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:08:55,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:08:55,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:08:41" (1/3) ... [2023-12-16 11:08:55,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611eaaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:08:55, skipping insertion in model container [2023-12-16 11:08:55,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:08:41" (2/3) ... [2023-12-16 11:08:55,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611eaaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:08:55, skipping insertion in model container [2023-12-16 11:08:55,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:08:55" (3/3) ... [2023-12-16 11:08:55,476 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-74.i [2023-12-16 11:08:55,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:08:55,490 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:08:55,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:08:55,542 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;@629428e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:08:55,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:08:55,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 124 states have (on average 1.5403225806451613) internal successors, (191), 125 states have internal predecessors, (191), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-12-16 11:08:55,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2023-12-16 11:08:55,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:08:55,581 INFO L195 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:55,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:08:55,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:08:55,586 INFO L85 PathProgramCache]: Analyzing trace with hash -497104962, now seen corresponding path program 1 times [2023-12-16 11:08:55,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:08:55,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500919124] [2023-12-16 11:08:55,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:08:55,628 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 11:08:55,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:08:55,631 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 11:08:55,677 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 11:08:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:08:56,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:08:56,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:08:56,452 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 6992 proven. 0 refuted. 0 times theorem prover too weak. 7972 trivial. 0 not checked. [2023-12-16 11:08:56,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:08:56,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:08:56,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500919124] [2023-12-16 11:08:56,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500919124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:08:56,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:08:56,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:08:56,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683808113] [2023-12-16 11:08:56,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:08:56,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:08:56,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:08:56,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:08:56,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:08:56,485 INFO L87 Difference]: Start difference. First operand has 214 states, 124 states have (on average 1.5403225806451613) internal successors, (191), 125 states have internal predecessors, (191), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2023-12-16 11:08:59,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:08:59,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:08:59,102 INFO L93 Difference]: Finished difference Result 424 states and 813 transitions. [2023-12-16 11:08:59,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:08:59,140 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 527 [2023-12-16 11:08:59,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:08:59,147 INFO L225 Difference]: With dead ends: 424 [2023-12-16 11:08:59,147 INFO L226 Difference]: Without dead ends: 211 [2023-12-16 11:08:59,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 526 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 11:08:59,158 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 11:08:59,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 353 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 11:08:59,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-12-16 11:08:59,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2023-12-16 11:08:59,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 122 states have (on average 1.4918032786885247) internal successors, (182), 122 states have internal predecessors, (182), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-12-16 11:08:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 356 transitions. [2023-12-16 11:08:59,245 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 356 transitions. Word has length 527 [2023-12-16 11:08:59,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:08:59,247 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 356 transitions. [2023-12-16 11:08:59,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2023-12-16 11:08:59,248 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 356 transitions. [2023-12-16 11:08:59,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2023-12-16 11:08:59,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:08:59,260 INFO L195 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:59,284 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 11:08:59,460 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 11:08:59,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:08:59,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:08:59,462 INFO L85 PathProgramCache]: Analyzing trace with hash -933631854, now seen corresponding path program 1 times [2023-12-16 11:08:59,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:08:59,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41382932] [2023-12-16 11:08:59,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:08:59,464 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 11:08:59,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:08:59,465 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 11:08:59,469 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 11:09:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:09:00,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:09:00,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:09:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2023-12-16 11:09:00,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:09:00,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:09:00,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41382932] [2023-12-16 11:09:00,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41382932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:09:00,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:09:00,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:09:00,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034712955] [2023-12-16 11:09:00,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:09:00,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:09:00,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:09:00,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:09:00,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:09:00,256 INFO L87 Difference]: Start difference. First operand 211 states and 356 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2023-12-16 11:09:02,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:09:02,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:09:02,960 INFO L93 Difference]: Finished difference Result 534 states and 905 transitions. [2023-12-16 11:09:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:09:02,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 527 [2023-12-16 11:09:02,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:09:02,964 INFO L225 Difference]: With dead ends: 534 [2023-12-16 11:09:02,964 INFO L226 Difference]: Without dead ends: 324 [2023-12-16 11:09:02,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 525 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 11:09:02,966 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 193 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 11:09:02,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 783 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 11:09:02,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-12-16 11:09:03,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 321. [2023-12-16 11:09:03,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 203 states have (on average 1.5566502463054188) internal successors, (316), 204 states have internal predecessors, (316), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 114 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-16 11:09:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 546 transitions. [2023-12-16 11:09:03,022 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 546 transitions. Word has length 527 [2023-12-16 11:09:03,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:09:03,023 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 546 transitions. [2023-12-16 11:09:03,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2023-12-16 11:09:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 546 transitions. [2023-12-16 11:09:03,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2023-12-16 11:09:03,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:09:03,027 INFO L195 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:03,050 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 11:09:03,247 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 11:09:03,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:09:03,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:09:03,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1962991152, now seen corresponding path program 1 times [2023-12-16 11:09:03,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:09:03,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713160648] [2023-12-16 11:09:03,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:09:03,250 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 11:09:03,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:09:03,252 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 11:09:03,276 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 11:09:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:09:04,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:09:04,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:09:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2023-12-16 11:09:04,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:09:04,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:09:04,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713160648] [2023-12-16 11:09:04,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713160648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:09:04,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:09:04,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:09:04,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174397971] [2023-12-16 11:09:04,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:09:04,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:09:04,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:09:04,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:09:04,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:09:04,151 INFO L87 Difference]: Start difference. First operand 321 states and 546 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2023-12-16 11:09:06,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:09:06,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:09:06,880 INFO L93 Difference]: Finished difference Result 648 states and 1096 transitions. [2023-12-16 11:09:06,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:09:06,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 527 [2023-12-16 11:09:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:09:06,891 INFO L225 Difference]: With dead ends: 648 [2023-12-16 11:09:06,891 INFO L226 Difference]: Without dead ends: 328 [2023-12-16 11:09:06,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 525 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 11:09:06,894 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 183 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 11:09:06,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 690 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 11:09:06,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-12-16 11:09:06,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 230. [2023-12-16 11:09:06,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 140 states have (on average 1.5) internal successors, (210), 140 states have internal predecessors, (210), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-12-16 11:09:06,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 384 transitions. [2023-12-16 11:09:06,914 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 384 transitions. Word has length 527 [2023-12-16 11:09:06,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:09:06,917 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 384 transitions. [2023-12-16 11:09:06,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2023-12-16 11:09:06,918 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 384 transitions. [2023-12-16 11:09:06,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2023-12-16 11:09:06,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:09:06,923 INFO L195 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:06,958 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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 11:09:07,132 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 11:09:07,133 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:09:07,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:09:07,134 INFO L85 PathProgramCache]: Analyzing trace with hash -576787758, now seen corresponding path program 1 times [2023-12-16 11:09:07,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:09:07,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040406283] [2023-12-16 11:09:07,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:09:07,134 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 11:09:07,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:09:07,136 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 11:09:07,141 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 11:09:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:09:07,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:09:07,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:09:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 7566 proven. 126 refuted. 0 times theorem prover too weak. 7272 trivial. 0 not checked. [2023-12-16 11:09:11,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:09:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 132 proven. 126 refuted. 0 times theorem prover too weak. 14706 trivial. 0 not checked. [2023-12-16 11:09:12,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:09:12,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040406283] [2023-12-16 11:09:12,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040406283] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 11:09:12,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:09:12,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 11:09:12,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943792012] [2023-12-16 11:09:12,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:09:12,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 11:09:12,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:09:12,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 11:09:12,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:09:12,734 INFO L87 Difference]: Start difference. First operand 230 states and 384 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (129), 2 states have call predecessors, (129), 4 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) [2023-12-16 11:09:18,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:09:18,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:09:18,440 INFO L93 Difference]: Finished difference Result 469 states and 776 transitions. [2023-12-16 11:09:18,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 11:09:18,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (129), 2 states have call predecessors, (129), 4 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) Word has length 527 [2023-12-16 11:09:18,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:09:18,479 INFO L225 Difference]: With dead ends: 469 [2023-12-16 11:09:18,480 INFO L226 Difference]: Without dead ends: 240 [2023-12-16 11:09:18,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1056 GetRequests, 1046 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 11:09:18,481 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 176 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-16 11:09:18,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 605 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-16 11:09:18,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-12-16 11:09:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 234. [2023-12-16 11:09:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 143 states have (on average 1.4825174825174825) internal successors, (212), 143 states have internal predecessors, (212), 87 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-12-16 11:09:18,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 386 transitions. [2023-12-16 11:09:18,493 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 386 transitions. Word has length 527 [2023-12-16 11:09:18,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:09:18,494 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 386 transitions. [2023-12-16 11:09:18,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (129), 2 states have call predecessors, (129), 4 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) [2023-12-16 11:09:18,494 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 386 transitions. [2023-12-16 11:09:18,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2023-12-16 11:09:18,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:09:18,497 INFO L195 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:18,540 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 11:09:18,712 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 11:09:18,713 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:09:18,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:09:18,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1587905008, now seen corresponding path program 1 times [2023-12-16 11:09:18,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:09:18,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889195689] [2023-12-16 11:09:18,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:09:18,714 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 11:09:18,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:09:18,715 INFO L229 MonitoredProcess]: Starting monitored process 6 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 11:09:18,717 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 (6)] Waiting until timeout for monitored process [2023-12-16 11:09:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:09:19,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 11:09:19,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:09:32,198 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2023-12-16 11:09:32,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:09:32,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:09:32,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889195689] [2023-12-16 11:09:32,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889195689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:09:32,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:09:32,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 11:09:32,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057728146] [2023-12-16 11:09:32,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:09:32,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 11:09:32,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:09:32,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 11:09:32,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 11:09:32,200 INFO L87 Difference]: Start difference. First operand 234 states and 386 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2023-12-16 11:09:36,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:09:39,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:09:39,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:09:39,229 INFO L93 Difference]: Finished difference Result 701 states and 1157 transitions. [2023-12-16 11:09:39,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 11:09:39,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 527 [2023-12-16 11:09:39,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:09:39,264 INFO L225 Difference]: With dead ends: 701 [2023-12-16 11:09:39,264 INFO L226 Difference]: Without dead ends: 468 [2023-12-16 11:09:39,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:09:39,266 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 277 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-12-16 11:09:39,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1209 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-12-16 11:09:39,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-12-16 11:09:39,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 451. [2023-12-16 11:09:39,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 270 states have (on average 1.474074074074074) internal successors, (398), 270 states have internal predecessors, (398), 174 states have call successors, (174), 6 states have call predecessors, (174), 6 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2023-12-16 11:09:39,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 746 transitions. [2023-12-16 11:09:39,296 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 746 transitions. Word has length 527 [2023-12-16 11:09:39,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:09:39,297 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 746 transitions. [2023-12-16 11:09:39,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2023-12-16 11:09:39,297 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 746 transitions. [2023-12-16 11:09:39,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2023-12-16 11:09:39,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:09:39,300 INFO L195 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:39,320 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 11:09:39,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 11:09:39,517 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:09:39,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:09:39,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1418800587, now seen corresponding path program 1 times [2023-12-16 11:09:39,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:09:39,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544554414] [2023-12-16 11:09:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:09:39,518 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 11:09:39,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:09:39,519 INFO L229 MonitoredProcess]: Starting monitored process 7 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 11:09:39,545 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 (7)] Waiting until timeout for monitored process [2023-12-16 11:09:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:09:40,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 11:09:40,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:09:52,755 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2023-12-16 11:09:52,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:09:52,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:09:52,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544554414] [2023-12-16 11:09:52,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544554414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:09:52,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:09:52,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 11:09:52,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407826050] [2023-12-16 11:09:52,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:09:52,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 11:09:52,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:09:52,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 11:09:52,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 11:09:52,758 INFO L87 Difference]: Start difference. First operand 451 states and 746 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Received shutdown request... [2023-12-16 11:09:54,923 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 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:09:54,952 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 11:09:55,947 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 (7)] Ended with exit code 0 [2023-12-16 11:09:56,152 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 11:09:56,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:09:56,188 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 268 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 11:09:56,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 498 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 11:09:56,189 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:09:56,190 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 11:09:56,193 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 11:09:56,194 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:09:56,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:09:56 BoogieIcfgContainer [2023-12-16 11:09:56,196 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:09:56,196 INFO L158 Benchmark]: Toolchain (without parser) took 74931.24ms. Allocated memory is still 249.6MB. Free memory was 199.8MB in the beginning and 92.0MB in the end (delta: 107.9MB). Peak memory consumption was 108.9MB. Max. memory is 8.0GB. [2023-12-16 11:09:56,196 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 181.4MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:09:56,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.35ms. Allocated memory is still 249.6MB. Free memory was 199.8MB in the beginning and 175.2MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 11:09:56,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.62ms. Allocated memory is still 249.6MB. Free memory was 175.2MB in the beginning and 170.5MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 11:09:56,197 INFO L158 Benchmark]: Boogie Preprocessor took 80.95ms. Allocated memory is still 249.6MB. Free memory was 170.5MB in the beginning and 164.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 11:09:56,197 INFO L158 Benchmark]: RCFGBuilder took 13634.16ms. Allocated memory is still 249.6MB. Free memory was 164.2MB in the beginning and 113.3MB in the end (delta: 50.9MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2023-12-16 11:09:56,197 INFO L158 Benchmark]: TraceAbstraction took 60725.80ms. Allocated memory is still 249.6MB. Free memory was 112.3MB in the beginning and 92.0MB in the end (delta: 20.3MB). Peak memory consumption was 21.9MB. Max. memory is 8.0GB. [2023-12-16 11:09:56,198 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2023-12-16 11:09:56,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 181.4MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 437.35ms. Allocated memory is still 249.6MB. Free memory was 199.8MB in the beginning and 175.2MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.62ms. Allocated memory is still 249.6MB. Free memory was 175.2MB in the beginning and 170.5MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.95ms. Allocated memory is still 249.6MB. Free memory was 170.5MB in the beginning and 164.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 13634.16ms. Allocated memory is still 249.6MB. Free memory was 164.2MB in the beginning and 113.3MB in the end (delta: 50.9MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * TraceAbstraction took 60725.80ms. Allocated memory is still 249.6MB. Free memory was 112.3MB in the beginning and 92.0MB in the end (delta: 20.3MB). Peak memory consumption was 21.9MB. 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 executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.7s, OverallIterations: 6, TraceHistogramMax: 87, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 24.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1140 SdHoareTripleChecker+Valid, 21.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1097 mSDsluCounter, 4138 SdHoareTripleChecker+Invalid, 21.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2037 mSDsCounter, 379 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 893 IncrementalHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 379 mSolverCounterUnsat, 2101 mSDtfsCounter, 893 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3693 GetRequests, 3669 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=451occurred in iteration=5, InterpolantAutomatonStates: 23, 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, 5 MinimizatonAttempts, 124 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 30.7s InterpolantComputationTime, 3163 NumberOfCodeBlocks, 3163 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 3683 ConstructedInterpolants, 0 QuantifiedInterpolants, 11004 SizeOfPredicates, 8 NumberOfNonLiveVariables, 5005 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 104496/104748 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