/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-pe-co_file-6.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 09:51:50,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 09:51:50,258 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 09:51:50,263 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 09:51:50,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 09:51:50,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 09:51:50,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 09:51:50,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 09:51:50,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 09:51:50,307 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 09:51:50,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 09:51:50,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 09:51:50,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 09:51:50,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 09:51:50,309 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 09:51:50,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 09:51:50,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 09:51:50,311 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 09:51:50,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 09:51:50,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 09:51:50,311 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 09:51:50,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 09:51:50,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 09:51:50,312 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 09:51:50,312 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 09:51:50,312 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 09:51:50,313 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 09:51:50,313 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 09:51:50,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 09:51:50,313 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 09:51:50,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 09:51:50,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 09:51:50,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 09:51:50,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 09:51:50,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 09:51:50,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 09:51:50,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 09:51:50,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 09:51:50,315 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 09:51:50,315 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 09:51:50,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 09:51:50,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 09:51:50,316 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 09:51:50,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 09:51:50,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 09:51:50,317 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 09:51:50,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 09:51:50,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 09:51:50,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 09:51:50,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 09:51:50,577 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 09:51:50,578 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 09:51:50,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-6.i [2023-12-23 09:51:51,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 09:51:52,086 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 09:51:52,087 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-6.i [2023-12-23 09:51:52,097 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be1a70c23/46dbf217e3c640609d03eb621c9960fb/FLAGcd9017c5a [2023-12-23 09:51:52,108 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be1a70c23/46dbf217e3c640609d03eb621c9960fb [2023-12-23 09:51:52,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 09:51:52,112 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 09:51:52,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 09:51:52,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 09:51:52,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 09:51:52,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703838cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52, skipping insertion in model container [2023-12-23 09:51:52,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,153 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 09:51:52,323 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-pe-co_file-6.i[918,931] [2023-12-23 09:51:52,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 09:51:52,426 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 09:51:52,436 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-pe-co_file-6.i[918,931] [2023-12-23 09:51:52,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 09:51:52,492 INFO L206 MainTranslator]: Completed translation [2023-12-23 09:51:52,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52 WrapperNode [2023-12-23 09:51:52,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 09:51:52,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 09:51:52,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 09:51:52,497 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 09:51:52,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,546 INFO L138 Inliner]: procedures = 27, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 209 [2023-12-23 09:51:52,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 09:51:52,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 09:51:52,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 09:51:52,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 09:51:52,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,588 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]. [2023-12-23 09:51:52,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,599 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 09:51:52,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 09:51:52,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 09:51:52,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 09:51:52,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (1/1) ... [2023-12-23 09:51:52,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 09:51:52,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 09:51:52,658 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) [2023-12-23 09:51:52,683 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 [2023-12-23 09:51:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 09:51:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 09:51:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 09:51:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 09:51:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 09:51:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 09:51:52,818 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 09:51:52,820 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 09:52:13,428 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 09:52:13,474 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 09:52:13,474 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 09:52:13,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:52:13 BoogieIcfgContainer [2023-12-23 09:52:13,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 09:52:13,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 09:52:13,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 09:52:13,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 09:52:13,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:51:52" (1/3) ... [2023-12-23 09:52:13,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c17535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:52:13, skipping insertion in model container [2023-12-23 09:52:13,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:52" (2/3) ... [2023-12-23 09:52:13,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c17535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:52:13, skipping insertion in model container [2023-12-23 09:52:13,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:52:13" (3/3) ... [2023-12-23 09:52:13,505 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-6.i [2023-12-23 09:52:13,521 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 09:52:13,521 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 09:52:13,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 09:52:13,569 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;@4e8ae9db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 09:52:13,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 09:52:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 52 states have (on average 1.5) internal successors, (78), 53 states have internal predecessors, (78), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-23 09:52:13,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-23 09:52:13,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:52:13,588 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:52:13,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:52:13,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:52:13,594 INFO L85 PathProgramCache]: Analyzing trace with hash -687555321, now seen corresponding path program 1 times [2023-12-23 09:52:13,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:52:13,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900429255] [2023-12-23 09:52:13,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:52:13,605 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 [2023-12-23 09:52:13,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:52:13,609 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) [2023-12-23 09:52:13,610 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 [2023-12-23 09:52:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:52:14,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 09:52:14,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:52:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 740 proven. 0 refuted. 0 times theorem prover too weak. 884 trivial. 0 not checked. [2023-12-23 09:52:14,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 09:52:14,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 09:52:14,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900429255] [2023-12-23 09:52:14,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900429255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 09:52:14,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 09:52:14,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 09:52:14,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970277171] [2023-12-23 09:52:14,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 09:52:14,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 09:52:14,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 09:52:14,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 09:52:14,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 09:52:14,582 INFO L87 Difference]: Start difference. First operand has 84 states, 52 states have (on average 1.5) internal successors, (78), 53 states have internal predecessors, (78), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-23 09:52:19,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:52:19,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 09:52:19,101 INFO L93 Difference]: Finished difference Result 165 states and 299 transitions. [2023-12-23 09:52:19,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 09:52:19,251 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 183 [2023-12-23 09:52:19,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 09:52:19,257 INFO L225 Difference]: With dead ends: 165 [2023-12-23 09:52:19,257 INFO L226 Difference]: Without dead ends: 82 [2023-12-23 09:52:19,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 09:52:19,263 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-23 09:52:19,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2023-12-23 09:52:19,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-12-23 09:52:19,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-12-23 09:52:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 51 states have (on average 1.392156862745098) internal successors, (71), 51 states have internal predecessors, (71), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-23 09:52:19,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 129 transitions. [2023-12-23 09:52:19,306 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 129 transitions. Word has length 183 [2023-12-23 09:52:19,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 09:52:19,306 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 129 transitions. [2023-12-23 09:52:19,307 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, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-23 09:52:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 129 transitions. [2023-12-23 09:52:19,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-23 09:52:19,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:52:19,310 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:52:19,337 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 [2023-12-23 09:52:19,520 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 [2023-12-23 09:52:19,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:52:19,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:52:19,521 INFO L85 PathProgramCache]: Analyzing trace with hash -181775411, now seen corresponding path program 1 times [2023-12-23 09:52:19,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:52:19,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443094511] [2023-12-23 09:52:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:52:19,522 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 [2023-12-23 09:52:19,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:52:19,523 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) [2023-12-23 09:52:19,525 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 [2023-12-23 09:52:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:52:20,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 09:52:20,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:52:23,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-12-23 09:52:23,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 09:52:23,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 09:52:23,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443094511] [2023-12-23 09:52:23,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443094511] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 09:52:23,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 09:52:23,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 09:52:23,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893999346] [2023-12-23 09:52:23,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 09:52:23,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 09:52:23,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 09:52:23,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 09:52:23,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 09:52:23,484 INFO L87 Difference]: Start difference. First operand 82 states and 129 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-23 09:52:28,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:52:32,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:52:36,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:52:40,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:52:44,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:52:44,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 09:52:44,922 INFO L93 Difference]: Finished difference Result 245 states and 386 transitions. [2023-12-23 09:52:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 09:52:45,092 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 183 [2023-12-23 09:52:45,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 09:52:45,095 INFO L225 Difference]: With dead ends: 245 [2023-12-23 09:52:45,096 INFO L226 Difference]: Without dead ends: 164 [2023-12-23 09:52:45,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 09:52:45,099 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 81 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 59 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2023-12-23 09:52:45,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 370 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 12 Invalid, 5 Unknown, 0 Unchecked, 21.3s Time] [2023-12-23 09:52:45,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-12-23 09:52:45,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 134. [2023-12-23 09:52:45,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 73 states have (on average 1.273972602739726) internal successors, (93), 73 states have internal predecessors, (93), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-23 09:52:45,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 209 transitions. [2023-12-23 09:52:45,144 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 209 transitions. Word has length 183 [2023-12-23 09:52:45,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 09:52:45,145 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 209 transitions. [2023-12-23 09:52:45,145 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-23 09:52:45,145 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 209 transitions. [2023-12-23 09:52:45,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-23 09:52:45,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:52:45,149 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:52:45,172 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 [2023-12-23 09:52:45,352 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 [2023-12-23 09:52:45,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:52:45,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:52:45,354 INFO L85 PathProgramCache]: Analyzing trace with hash 890649755, now seen corresponding path program 1 times [2023-12-23 09:52:45,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:52:45,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278143595] [2023-12-23 09:52:45,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:52:45,355 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 [2023-12-23 09:52:45,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:52:45,357 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) [2023-12-23 09:52:45,358 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 [2023-12-23 09:52:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:52:46,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 09:52:46,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:52:50,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 817 proven. 96 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2023-12-23 09:52:50,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 09:52:52,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-23 09:52:52,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 09:52:52,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278143595] [2023-12-23 09:52:52,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278143595] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 09:52:52,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 09:52:52,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 12 [2023-12-23 09:52:52,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092511475] [2023-12-23 09:52:52,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 09:52:52,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-23 09:52:52,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 09:52:52,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-23 09:52:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-23 09:52:52,613 INFO L87 Difference]: Start difference. First operand 134 states and 209 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 3 states have call successors, (46), 3 states have call predecessors, (46), 5 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2023-12-23 09:53:00,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:04,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:08,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:12,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:14,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:19,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:23,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:27,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:31,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:35,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:39,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:43,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:47,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:51,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:55,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:53:59,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:03,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:07,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:11,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:15,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:19,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:23,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:27,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:38,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:42,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:46,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:52,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:54:56,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:55:00,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:55:04,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:55:08,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:55:08,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 09:55:08,072 INFO L93 Difference]: Finished difference Result 416 states and 623 transitions. [2023-12-23 09:55:08,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-23 09:55:08,121 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 3 states have call successors, (46), 3 states have call predecessors, (46), 5 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 184 [2023-12-23 09:55:08,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 09:55:08,125 INFO L225 Difference]: With dead ends: 416 [2023-12-23 09:55:08,125 INFO L226 Difference]: Without dead ends: 335 [2023-12-23 09:55:08,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 359 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=333, Invalid=857, Unknown=0, NotChecked=0, Total=1190 [2023-12-23 09:55:08,127 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 371 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 172 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.7s IncrementalHoareTripleChecker+Time [2023-12-23 09:55:08,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 928 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 956 Invalid, 30 Unknown, 0 Unchecked, 132.7s Time] [2023-12-23 09:55:08,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-23 09:55:08,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 236. [2023-12-23 09:55:08,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 139 states have (on average 1.2661870503597121) internal successors, (176), 139 states have internal predecessors, (176), 87 states have call successors, (87), 9 states have call predecessors, (87), 9 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-12-23 09:55:08,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 350 transitions. [2023-12-23 09:55:08,163 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 350 transitions. Word has length 184 [2023-12-23 09:55:08,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 09:55:08,164 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 350 transitions. [2023-12-23 09:55:08,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 3 states have call successors, (46), 3 states have call predecessors, (46), 5 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2023-12-23 09:55:08,164 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 350 transitions. [2023-12-23 09:55:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-23 09:55:08,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:55:08,167 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:55:08,195 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 [2023-12-23 09:55:08,384 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 [2023-12-23 09:55:08,385 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:55:08,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:55:08,385 INFO L85 PathProgramCache]: Analyzing trace with hash -798293987, now seen corresponding path program 1 times [2023-12-23 09:55:08,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:55:08,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932293518] [2023-12-23 09:55:08,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:55:08,386 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 [2023-12-23 09:55:08,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:55:08,387 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) [2023-12-23 09:55:08,390 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 [2023-12-23 09:55:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:55:09,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 09:55:09,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:55:11,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 798 proven. 51 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2023-12-23 09:55:11,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 09:55:12,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-23 09:55:12,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 09:55:12,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932293518] [2023-12-23 09:55:12,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932293518] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 09:55:12,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 09:55:12,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-23 09:55:12,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916945538] [2023-12-23 09:55:12,754 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 09:55:12,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 09:55:12,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 09:55:12,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 09:55:12,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-23 09:55:12,756 INFO L87 Difference]: Start difference. First operand 236 states and 350 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-23 09:55:18,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:55:23,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:55:27,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:55:31,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 09:55:31,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 09:55:31,789 INFO L93 Difference]: Finished difference Result 417 states and 619 transitions. [2023-12-23 09:55:31,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 09:55:31,790 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 184 [2023-12-23 09:55:31,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 09:55:31,793 INFO L225 Difference]: With dead ends: 417 [2023-12-23 09:55:31,793 INFO L226 Difference]: Without dead ends: 242 [2023-12-23 09:55:31,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 359 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-23 09:55:31,795 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 173 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 111 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2023-12-23 09:55:31,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 206 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 166 Invalid, 3 Unknown, 0 Unchecked, 18.4s Time] [2023-12-23 09:55:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-23 09:55:31,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 236. [2023-12-23 09:55:31,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 139 states have (on average 1.2374100719424461) internal successors, (172), 139 states have internal predecessors, (172), 87 states have call successors, (87), 9 states have call predecessors, (87), 9 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-12-23 09:55:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 346 transitions. [2023-12-23 09:55:31,827 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 346 transitions. Word has length 184 [2023-12-23 09:55:31,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 09:55:31,828 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 346 transitions. [2023-12-23 09:55:31,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-23 09:55:31,828 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 346 transitions. [2023-12-23 09:55:31,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-23 09:55:31,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:55:31,830 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:55:31,858 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 (5)] Ended with exit code 0 [2023-12-23 09:55:32,044 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 [2023-12-23 09:55:32,045 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:55:32,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:55:32,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2052378664, now seen corresponding path program 1 times [2023-12-23 09:55:32,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:55:32,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522178800] [2023-12-23 09:55:32,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:55:32,046 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 [2023-12-23 09:55:32,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:55:32,047 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) [2023-12-23 09:55:32,050 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 [2023-12-23 09:55:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:55:35,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-23 09:55:35,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:57:17,405 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:57:25,589 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:57:33,700 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:57:41,886 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:57:50,081 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:57:56,547 WARN L293 SmtUtils]: Spent 6.47s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:58:04,736 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:58:12,931 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:58:21,116 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:58:34,019 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:58:42,213 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:58:50,411 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:59:03,052 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:59:11,248 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:59:19,451 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:59:27,645 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:59:35,833 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:59:44,022 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:59:52,217 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:00:00,414 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:00:08,610 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:00:16,855 WARN L293 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:00:20,918 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (let ((.cse1 (fp.mul c_currentRoundingMode c_~last_1_var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 507.0 8.0)))) (.cse2 (fp.lt c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (and (= (_ bv0 32) (bvadd (_ bv500 32) c_~var_1_16~0)) (fp.geq c_~var_1_15~0 .cse0) (or (not (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode (fp.neg c_~var_1_5~0) .cse1))) (not .cse2)) (= (bvadd (_ bv500 32) c_~last_1_var_1_16~0) (_ bv0 32)) (= c_~last_1_var_1_19~0 c_~var_1_19~0) (fp.leq c_~var_1_15~0 .cse3) (bvsle c_~var_1_9~0 (_ bv1073741823 32)) (fp.leq c_~var_1_7~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= (_ bv1 8) c_~last_1_var_1_17~0) (bvsge c_~var_1_11~0 (_ bv1073741823 32)) (fp.geq c_~var_1_14~0 .cse0) (bvsge c_~var_1_10~0 (_ bv536870911 32)) (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (or (and (fp.geq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse4))) (fp.leq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0)))) (and (fp.leq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode .cse4)) (fp.geq c_~var_1_5~0 .cse5)))) (or (not (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode c_~var_1_5~0 .cse1))) .cse2) (bvsge c_~var_1_9~0 (_ bv536870911 32)) (fp.geq c_~var_1_7~0 .cse5) (bvsle c_~var_1_10~0 (_ bv1073741823 32)) (fp.leq c_~var_1_14~0 .cse3) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-23 10:00:24,982 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (let ((.cse1 (fp.mul c_currentRoundingMode c_~last_1_var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 507.0 8.0)))) (.cse2 (fp.lt c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (and (= (_ bv0 32) (bvadd (_ bv500 32) c_~var_1_16~0)) (fp.geq c_~var_1_15~0 .cse0) (or (not (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode (fp.neg c_~var_1_5~0) .cse1))) (not .cse2)) (= (bvadd (_ bv500 32) c_~last_1_var_1_16~0) (_ bv0 32)) (= c_~last_1_var_1_19~0 c_~var_1_19~0) (fp.leq c_~var_1_15~0 .cse3) (bvsle c_~var_1_9~0 (_ bv1073741823 32)) (fp.leq c_~var_1_7~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= (_ bv1 8) c_~last_1_var_1_17~0) (bvsge c_~var_1_11~0 (_ bv1073741823 32)) (fp.geq c_~var_1_14~0 .cse0) (bvsge c_~var_1_10~0 (_ bv536870911 32)) (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (or (and (fp.geq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse4))) (fp.leq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0)))) (and (fp.leq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode .cse4)) (fp.geq c_~var_1_5~0 .cse5)))) (or (not (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode c_~var_1_5~0 .cse1))) .cse2) (bvsge c_~var_1_9~0 (_ bv536870911 32)) (fp.geq c_~var_1_7~0 .cse5) (bvsle c_~var_1_10~0 (_ bv1073741823 32)) (fp.leq c_~var_1_14~0 .cse3) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2023-12-23 10:00:33,192 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:00:41,396 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:00:49,434 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:00:57,628 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:01:04,786 WARN L293 SmtUtils]: Spent 7.16s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:01:12,980 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:01:21,192 WARN L293 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:01:29,392 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:01:37,589 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:01:45,785 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:01:53,977 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:02:02,169 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:02:10,367 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:02:18,556 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:02:26,751 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:02:34,939 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:02:42,566 WARN L293 SmtUtils]: Spent 7.63s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:02:50,756 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:02:58,943 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:03:07,133 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:03:15,333 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:03:23,519 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:03:31,698 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:03:39,908 WARN L293 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:03:48,152 WARN L293 SmtUtils]: Spent 8.23s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:03:53,233 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:04:01,424 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:04:09,616 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:04:17,799 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:04:25,997 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:04:34,192 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:04:42,251 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:04:50,644 WARN L293 SmtUtils]: Spent 8.39s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:04:58,846 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:05:07,046 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:05:15,239 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:05:23,428 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:05:35,998 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:05:44,192 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:05:52,402 WARN L293 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:06:00,601 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:06:08,849 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:06:15,935 WARN L293 SmtUtils]: Spent 7.09s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 10:06:22,312 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 10:06:22,313 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 [2023-12-23 10:06:23,349 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 [2023-12-23 10:06:23,514 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 [2023-12-23 10:06:23,547 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 [2023-12-23 10:06:23,549 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 10:06:23,549 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 186 with TraceHistMax 29,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 10:06:23,553 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-23 10:06:23,555 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 10:06:23,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 10:06:23 BoogieIcfgContainer [2023-12-23 10:06:23,557 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 10:06:23,557 INFO L158 Benchmark]: Toolchain (without parser) took 871445.30ms. Allocated memory is still 340.8MB. Free memory was 289.3MB in the beginning and 180.4MB in the end (delta: 108.9MB). Peak memory consumption was 110.3MB. Max. memory is 8.0GB. [2023-12-23 10:06:23,557 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 194.0MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 10:06:23,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.07ms. Allocated memory is still 340.8MB. Free memory was 289.3MB in the beginning and 273.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-23 10:06:23,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.17ms. Allocated memory is still 340.8MB. Free memory was 273.0MB in the beginning and 270.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-23 10:06:23,558 INFO L158 Benchmark]: Boogie Preprocessor took 62.74ms. Allocated memory is still 340.8MB. Free memory was 270.5MB in the beginning and 266.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 10:06:23,558 INFO L158 Benchmark]: RCFGBuilder took 20863.90ms. Allocated memory is still 340.8MB. Free memory was 266.8MB in the beginning and 238.9MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-23 10:06:23,558 INFO L158 Benchmark]: TraceAbstraction took 850058.62ms. Allocated memory is still 340.8MB. Free memory was 308.1MB in the beginning and 180.4MB in the end (delta: 127.7MB). Peak memory consumption was 127.6MB. Max. memory is 8.0GB. [2023-12-23 10:06:23,560 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 194.0MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 383.07ms. Allocated memory is still 340.8MB. Free memory was 289.3MB in the beginning and 273.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.17ms. Allocated memory is still 340.8MB. Free memory was 273.0MB in the beginning and 270.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.74ms. Allocated memory is still 340.8MB. Free memory was 270.5MB in the beginning and 266.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 20863.90ms. Allocated memory is still 340.8MB. Free memory was 266.8MB in the beginning and 238.9MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 850058.62ms. Allocated memory is still 340.8MB. Free memory was 308.1MB in the beginning and 180.4MB in the end (delta: 127.7MB). Peak memory consumption was 127.6MB. 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 186 with TraceHistMax 29,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 850.0s, OverallIterations: 5, TraceHistogramMax: 29, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 180.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 mSolverCounterUnknown, 639 SdHoareTripleChecker+Valid, 177.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 625 mSDsluCounter, 1630 SdHoareTripleChecker+Invalid, 175.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1061 mSDsCounter, 342 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1136 IncrementalHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 342 mSolverCounterUnsat, 569 mSDtfsCounter, 1136 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1131 GetRequests, 1080 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=3, InterpolantAutomatonStates: 46, 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, 135 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 734 NumberOfCodeBlocks, 734 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1096 ConstructedInterpolants, 0 QuantifiedInterpolants, 2883 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1261 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 9495/9744 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