/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_fillercodestructure_filler-pr-ci_file-21.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:08:34,256 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:08:34,344 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 12:08:34,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:08:34,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:08:34,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:08:34,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:08:34,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:08:34,373 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:08:34,373 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:08:34,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:08:34,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:08:34,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:08:34,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:08:34,374 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:08:34,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:08:34,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:08:34,375 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:08:34,375 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:08:34,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:08:34,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:08:34,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:08:34,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:08:34,377 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:08:34,377 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:08:34,377 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:08:34,378 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:08:34,378 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:08:34,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:08:34,378 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:08:34,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:08:34,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:08:34,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:08:34,379 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:08:34,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:08:34,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:08:34,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:08:34,380 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:08:34,380 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:08:34,380 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:08:34,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:08:34,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:08:34,380 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:08:34,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:08:34,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:08:34,381 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:08:34,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:08:34,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:08:34,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:08:34,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:08:34,605 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:08:34,606 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:08:34,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-21.i [2023-12-16 12:08:35,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:08:35,892 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:08:35,893 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-21.i [2023-12-16 12:08:35,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97151574e/886130d580604c90bcbaa8cd2e7e27a3/FLAGca45a2468 [2023-12-16 12:08:35,920 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97151574e/886130d580604c90bcbaa8cd2e7e27a3 [2023-12-16 12:08:35,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:08:35,924 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:08:35,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:08:35,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:08:35,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:08:35,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:08:35" (1/1) ... [2023-12-16 12:08:35,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac94e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:35, skipping insertion in model container [2023-12-16 12:08:35,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:08:35" (1/1) ... [2023-12-16 12:08:35,959 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:08:36,085 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_fillercodestructure_filler-pr-ci_file-21.i[919,932] [2023-12-16 12:08:36,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:08:36,162 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:08:36,174 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_fillercodestructure_filler-pr-ci_file-21.i[919,932] [2023-12-16 12:08:36,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:08:36,225 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:08:36,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36 WrapperNode [2023-12-16 12:08:36,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:08:36,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:08:36,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:08:36,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:08:36,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,265 INFO L138 Inliner]: procedures = 27, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 194 [2023-12-16 12:08:36,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:08:36,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:08:36,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:08:36,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:08:36,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,312 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 12:08:36,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:08:36,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:08:36,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:08:36,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:08:36,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (1/1) ... [2023-12-16 12:08:36,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:08:36,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:08:36,408 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 12:08:36,430 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 12:08:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:08:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:08:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:08:36,442 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:08:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:08:36,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:08:36,547 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:08:36,549 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:08:39,046 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:08:39,089 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:08:39,089 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:08:39,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:08:39 BoogieIcfgContainer [2023-12-16 12:08:39,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:08:39,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:08:39,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:08:39,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:08:39,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:08:35" (1/3) ... [2023-12-16 12:08:39,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a8f951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:08:39, skipping insertion in model container [2023-12-16 12:08:39,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:36" (2/3) ... [2023-12-16 12:08:39,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a8f951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:08:39, skipping insertion in model container [2023-12-16 12:08:39,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:08:39" (3/3) ... [2023-12-16 12:08:39,106 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-21.i [2023-12-16 12:08:39,123 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:08:39,123 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:08:39,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:08:39,178 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;@b0e39b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:08:39,179 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:08:39,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 50 states have (on average 1.46) internal successors, (73), 51 states have internal predecessors, (73), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 12:08:39,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-16 12:08:39,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:08:39,194 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:39,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:08:39,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:08:39,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1000959697, now seen corresponding path program 1 times [2023-12-16 12:08:39,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:08:39,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12388453] [2023-12-16 12:08:39,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:08:39,208 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 12:08:39,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:08:39,210 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 12:08:39,273 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 12:08:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:08:39,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:08:39,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:08:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 774 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2023-12-16 12:08:39,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:08:39,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:08:39,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12388453] [2023-12-16 12:08:39,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12388453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:08:39,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:08:39,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:08:39,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809904421] [2023-12-16 12:08:39,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:08:39,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:08:39,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:08:39,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:08:39,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:08:39,667 INFO L87 Difference]: Start difference. First operand has 81 states, 50 states have (on average 1.46) internal successors, (73), 51 states have internal predecessors, (73), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-16 12:08:40,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:08:40,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:08:40,881 INFO L93 Difference]: Finished difference Result 156 states and 278 transitions. [2023-12-16 12:08:40,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:08:40,903 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 178 [2023-12-16 12:08:40,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:08:40,909 INFO L225 Difference]: With dead ends: 156 [2023-12-16 12:08:40,909 INFO L226 Difference]: Without dead ends: 76 [2023-12-16 12:08:40,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 177 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 12:08:40,916 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 12:08:40,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 12:08:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-16 12:08:40,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-16 12:08:40,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 46 states have internal predecessors, (60), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 12:08:40,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 116 transitions. [2023-12-16 12:08:40,965 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 116 transitions. Word has length 178 [2023-12-16 12:08:40,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:08:40,965 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 116 transitions. [2023-12-16 12:08:40,966 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-16 12:08:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 116 transitions. [2023-12-16 12:08:40,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-16 12:08:40,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:08:40,974 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:40,984 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 12:08:41,183 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 12:08:41,183 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:08:41,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:08:41,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1203048503, now seen corresponding path program 1 times [2023-12-16 12:08:41,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:08:41,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840400806] [2023-12-16 12:08:41,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:08:41,186 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 12:08:41,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:08:41,188 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 12:08:41,188 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 12:08:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:08:41,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:08:41,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:08:42,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 12:08:42,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:08:42,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:08:42,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840400806] [2023-12-16 12:08:42,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840400806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:08:42,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:08:42,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 12:08:42,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001268370] [2023-12-16 12:08:42,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:08:42,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 12:08:42,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:08:42,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 12:08:42,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 12:08:42,308 INFO L87 Difference]: Start difference. First operand 76 states and 116 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, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 12:08:44,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:08:44,457 INFO L93 Difference]: Finished difference Result 227 states and 347 transitions. [2023-12-16 12:08:44,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 12:08:44,477 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, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 178 [2023-12-16 12:08:44,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:08:44,479 INFO L225 Difference]: With dead ends: 227 [2023-12-16 12:08:44,479 INFO L226 Difference]: Without dead ends: 152 [2023-12-16 12:08:44,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 12:08:44,482 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 63 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:08:44,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 313 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 12:08:44,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-16 12:08:44,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 126. [2023-12-16 12:08:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 67 states have (on average 1.208955223880597) internal successors, (81), 67 states have internal predecessors, (81), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-16 12:08:44,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 193 transitions. [2023-12-16 12:08:44,501 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 193 transitions. Word has length 178 [2023-12-16 12:08:44,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:08:44,502 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 193 transitions. [2023-12-16 12:08:44,502 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, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 12:08:44,502 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 193 transitions. [2023-12-16 12:08:44,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-16 12:08:44,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:08:44,504 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:44,528 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 12:08:44,713 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 12:08:44,714 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:08:44,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:08:44,714 INFO L85 PathProgramCache]: Analyzing trace with hash 2020696953, now seen corresponding path program 1 times [2023-12-16 12:08:44,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:08:44,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167928968] [2023-12-16 12:08:44,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:08:44,715 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 12:08:44,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:08:44,718 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 12:08:44,719 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 12:08:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:08:44,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:08:44,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:08:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 771 proven. 45 refuted. 0 times theorem prover too weak. 696 trivial. 0 not checked. [2023-12-16 12:08:45,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:08:45,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:08:45,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167928968] [2023-12-16 12:08:45,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167928968] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:08:45,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1822869759] [2023-12-16 12:08:45,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:08:45,802 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:08:45,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:08:45,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:08:45,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-16 12:08:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:08:46,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 12:08:46,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:08:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 771 proven. 45 refuted. 0 times theorem prover too weak. 696 trivial. 0 not checked. [2023-12-16 12:08:47,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:08:47,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1822869759] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:08:47,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:08:47,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-12-16 12:08:47,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760093971] [2023-12-16 12:08:47,164 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:08:47,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 12:08:47,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:08:47,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 12:08:47,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-16 12:08:47,165 INFO L87 Difference]: Start difference. First operand 126 states and 193 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-16 12:08:48,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:08:48,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:08:48,681 INFO L93 Difference]: Finished difference Result 227 states and 345 transitions. [2023-12-16 12:08:48,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 12:08:48,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 178 [2023-12-16 12:08:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:08:48,684 INFO L225 Difference]: With dead ends: 227 [2023-12-16 12:08:48,684 INFO L226 Difference]: Without dead ends: 152 [2023-12-16 12:08:48,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2023-12-16 12:08:48,685 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 38 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 12:08:48,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 390 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 12:08:48,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-16 12:08:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 146. [2023-12-16 12:08:48,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 86 states have (on average 1.255813953488372) internal successors, (108), 86 states have internal predecessors, (108), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-16 12:08:48,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 220 transitions. [2023-12-16 12:08:48,720 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 220 transitions. Word has length 178 [2023-12-16 12:08:48,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:08:48,721 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 220 transitions. [2023-12-16 12:08:48,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-16 12:08:48,721 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 220 transitions. [2023-12-16 12:08:48,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 12:08:48,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:08:48,724 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:48,735 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 12:08:48,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-16 12:08:49,140 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 12:08:49,141 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:08:49,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:08:49,141 INFO L85 PathProgramCache]: Analyzing trace with hash -506162848, now seen corresponding path program 1 times [2023-12-16 12:08:49,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:08:49,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776798706] [2023-12-16 12:08:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:08:49,142 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 12:08:49,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:08:49,144 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 12:08:49,212 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 12:08:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:08:49,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 12:08:49,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:08:49,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 777 proven. 36 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-12-16 12:08:49,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:08:49,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-12-16 12:08:49,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:08:49,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776798706] [2023-12-16 12:08:49,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776798706] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:08:49,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:08:49,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 12:08:49,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782054630] [2023-12-16 12:08:49,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:08:49,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 12:08:49,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:08:49,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 12:08:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:08:49,764 INFO L87 Difference]: Start difference. First operand 146 states and 220 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-16 12:08:51,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:08:51,033 INFO L93 Difference]: Finished difference Result 243 states and 357 transitions. [2023-12-16 12:08:51,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 12:08:51,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 179 [2023-12-16 12:08:51,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:08:51,056 INFO L225 Difference]: With dead ends: 243 [2023-12-16 12:08:51,056 INFO L226 Difference]: Without dead ends: 160 [2023-12-16 12:08:51,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 350 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 12:08:51,057 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 101 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 12:08:51,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 172 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 12:08:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-16 12:08:51,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 152. [2023-12-16 12:08:51,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 90 states have (on average 1.1888888888888889) internal successors, (107), 90 states have internal predecessors, (107), 56 states have call successors, (56), 5 states have call predecessors, (56), 5 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-16 12:08:51,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 219 transitions. [2023-12-16 12:08:51,073 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 219 transitions. Word has length 179 [2023-12-16 12:08:51,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:08:51,073 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 219 transitions. [2023-12-16 12:08:51,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-16 12:08:51,074 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 219 transitions. [2023-12-16 12:08:51,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 12:08:51,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:08:51,075 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:51,097 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 12:08:51,292 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 12:08:51,293 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:08:51,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:08:51,294 INFO L85 PathProgramCache]: Analyzing trace with hash -448904546, now seen corresponding path program 1 times [2023-12-16 12:08:51,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:08:51,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044457789] [2023-12-16 12:08:51,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:08:51,295 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 12:08:51,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:08:51,296 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 12:08:51,302 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 12:08:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:08:52,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-16 12:08:52,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:09:52,640 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 12:09:52,677 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 12:09:53,666 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 (7)] Forceful destruction successful, exit code 0 [2023-12-16 12:09:53,878 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 12:09:53,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 12:09:53,897 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:09:53,897 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 180 with TraceHistMax 28,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 12:09:53,900 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 12:09:53,902 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:09:53,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:09:53 BoogieIcfgContainer [2023-12-16 12:09:53,915 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:09:53,917 INFO L158 Benchmark]: Toolchain (without parser) took 77991.80ms. Allocated memory was 290.5MB in the beginning and 349.2MB in the end (delta: 58.7MB). Free memory was 246.7MB in the beginning and 285.3MB in the end (delta: -38.6MB). Peak memory consumption was 198.5MB. Max. memory is 8.0GB. [2023-12-16 12:09:53,919 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:09:53,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.06ms. Allocated memory is still 290.5MB. Free memory was 246.7MB in the beginning and 230.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 12:09:53,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.63ms. Allocated memory is still 290.5MB. Free memory was 230.0MB in the beginning and 227.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 12:09:53,925 INFO L158 Benchmark]: Boogie Preprocessor took 98.09ms. Allocated memory is still 290.5MB. Free memory was 226.9MB in the beginning and 223.2MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:09:53,926 INFO L158 Benchmark]: RCFGBuilder took 2724.50ms. Allocated memory is still 290.5MB. Free memory was 223.2MB in the beginning and 193.3MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-16 12:09:53,926 INFO L158 Benchmark]: TraceAbstraction took 74815.85ms. Allocated memory was 290.5MB in the beginning and 349.2MB in the end (delta: 58.7MB). Free memory was 192.8MB in the beginning and 285.3MB in the end (delta: -92.5MB). Peak memory consumption was 145.0MB. Max. memory is 8.0GB. [2023-12-16 12:09:53,927 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 302.06ms. Allocated memory is still 290.5MB. Free memory was 246.7MB in the beginning and 230.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.63ms. Allocated memory is still 290.5MB. Free memory was 230.0MB in the beginning and 227.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 98.09ms. Allocated memory is still 290.5MB. Free memory was 226.9MB in the beginning and 223.2MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 2724.50ms. Allocated memory is still 290.5MB. Free memory was 223.2MB in the beginning and 193.3MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 74815.85ms. Allocated memory was 290.5MB in the beginning and 349.2MB in the end (delta: 58.7MB). Free memory was 192.8MB in the beginning and 285.3MB in the end (delta: -92.5MB). Peak memory consumption was 145.0MB. 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 analyzing trace of length 180 with TraceHistMax 28,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.7s, OverallIterations: 5, TraceHistogramMax: 28, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 202 mSDsluCounter, 988 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 611 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 377 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1285 GetRequests, 1262 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 4 MinimizatonAttempts, 40 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 891 NumberOfCodeBlocks, 891 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1064 ConstructedInterpolants, 0 QuantifiedInterpolants, 4129 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1503 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8910/9072 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