/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-79.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:33:07,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:33:07,591 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 12:33:07,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:33:07,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:33:07,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:33:07,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:33:07,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:33:07,616 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:33:07,619 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:33:07,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:33:07,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:33:07,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:33:07,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:33:07,621 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:33:07,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:33:07,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:33:07,621 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:33:07,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:33:07,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:33:07,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:33:07,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:33:07,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:33:07,622 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:33:07,623 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:33:07,623 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:33:07,623 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:33:07,623 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:33:07,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:33:07,623 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:33:07,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:33:07,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:33:07,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:33:07,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:33:07,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:33:07,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:33:07,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:33:07,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:33:07,626 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:33:07,626 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:33:07,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:33:07,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:33:07,626 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:33:07,626 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:33:07,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:33:07,627 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:33:07,627 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:33:07,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:33:07,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:33:07,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:33:07,811 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:33:07,811 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:33:07,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-79.i [2023-12-16 12:33:08,893 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:33:09,061 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:33:09,062 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-79.i [2023-12-16 12:33:09,070 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76dc4ebf5/0acd1ba9ab3c4c5fa9a8ec5f4f2a182c/FLAG20e7c6e46 [2023-12-16 12:33:09,083 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76dc4ebf5/0acd1ba9ab3c4c5fa9a8ec5f4f2a182c [2023-12-16 12:33:09,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:33:09,086 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:33:09,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:33:09,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:33:09,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:33:09,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541569e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09, skipping insertion in model container [2023-12-16 12:33:09,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,139 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:33:09,281 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-79.i[919,932] [2023-12-16 12:33:09,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:33:09,347 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:33:09,356 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-79.i[919,932] [2023-12-16 12:33:09,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:33:09,403 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:33:09,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09 WrapperNode [2023-12-16 12:33:09,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:33:09,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:33:09,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:33:09,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:33:09,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,458 INFO L138 Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 248 [2023-12-16 12:33:09,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:33:09,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:33:09,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:33:09,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:33:09,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,473 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,483 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 12:33:09,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:33:09,511 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:33:09,511 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:33:09,511 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:33:09,512 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (1/1) ... [2023-12-16 12:33:09,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:33:09,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:33:09,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 12:33:09,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 12:33:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:33:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:33:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:33:09,583 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:33:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:33:09,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:33:09,677 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:33:09,678 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:33:18,041 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:33:18,136 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:33:18,137 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:33:18,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:33:18 BoogieIcfgContainer [2023-12-16 12:33:18,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:33:18,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:33:18,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:33:18,143 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:33:18,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:33:09" (1/3) ... [2023-12-16 12:33:18,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c36dcd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:33:18, skipping insertion in model container [2023-12-16 12:33:18,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:33:09" (2/3) ... [2023-12-16 12:33:18,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c36dcd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:33:18, skipping insertion in model container [2023-12-16 12:33:18,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:33:18" (3/3) ... [2023-12-16 12:33:18,145 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-79.i [2023-12-16 12:33:18,157 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:33:18,157 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:33:18,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:33:18,197 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;@71650309, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:33:18,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:33:18,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 12:33:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-16 12:33:18,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:33:18,215 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:33:18,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:33:18,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:33:18,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1572517534, now seen corresponding path program 1 times [2023-12-16 12:33:18,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:33:18,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788192989] [2023-12-16 12:33:18,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:33:18,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:18,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:33:18,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:33:18,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 12:33:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:33:18,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:33:18,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:33:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1158 proven. 0 refuted. 0 times theorem prover too weak. 1962 trivial. 0 not checked. [2023-12-16 12:33:18,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:33:18,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:33:18,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788192989] [2023-12-16 12:33:18,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788192989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:33:18,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:33:18,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:33:18,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119212759] [2023-12-16 12:33:18,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:33:18,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:33:18,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:33:19,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:33:19,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:33:19,032 INFO L87 Difference]: Start difference. First operand has 100 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-16 12:33:22,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:22,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:33:22,569 INFO L93 Difference]: Finished difference Result 197 states and 356 transitions. [2023-12-16 12:33:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:33:22,608 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 246 [2023-12-16 12:33:22,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:33:22,614 INFO L225 Difference]: With dead ends: 197 [2023-12-16 12:33:22,614 INFO L226 Difference]: Without dead ends: 98 [2023-12-16 12:33:22,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:33:22,618 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-16 12:33:22,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-16 12:33:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-16 12:33:22,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-12-16 12:33:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 56 states have internal predecessors, (72), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 12:33:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 152 transitions. [2023-12-16 12:33:22,651 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 152 transitions. Word has length 246 [2023-12-16 12:33:22,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:33:22,652 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 152 transitions. [2023-12-16 12:33:22,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-16 12:33:22,652 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 152 transitions. [2023-12-16 12:33:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-16 12:33:22,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:33:22,656 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:33:22,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:22,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:22,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:33:22,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:33:22,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1730567814, now seen corresponding path program 1 times [2023-12-16 12:33:22,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:33:22,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845441226] [2023-12-16 12:33:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:33:22,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:22,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:33:22,877 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:33:22,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 12:33:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:33:23,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 12:33:23,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:33:24,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-16 12:33:24,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:33:24,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:33:24,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845441226] [2023-12-16 12:33:24,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845441226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:33:24,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:33:24,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 12:33:24,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071780505] [2023-12-16 12:33:24,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:33:24,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 12:33:24,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:33:24,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 12:33:24,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 12:33:24,641 INFO L87 Difference]: Start difference. First operand 98 states and 152 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 12:33:26,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:31,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:31,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:33:31,056 INFO L93 Difference]: Finished difference Result 315 states and 488 transitions. [2023-12-16 12:33:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 12:33:31,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 246 [2023-12-16 12:33:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:33:31,095 INFO L225 Difference]: With dead ends: 315 [2023-12-16 12:33:31,095 INFO L226 Difference]: Without dead ends: 218 [2023-12-16 12:33:31,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:33:31,097 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 188 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 83 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-16 12:33:31,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 478 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 103 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2023-12-16 12:33:31,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-16 12:33:31,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 193. [2023-12-16 12:33:31,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 110 states have (on average 1.2636363636363637) internal successors, (139), 110 states have internal predecessors, (139), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-16 12:33:31,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 299 transitions. [2023-12-16 12:33:31,143 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 299 transitions. Word has length 246 [2023-12-16 12:33:31,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:33:31,144 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 299 transitions. [2023-12-16 12:33:31,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 12:33:31,144 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 299 transitions. [2023-12-16 12:33:31,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-16 12:33:31,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:33:31,147 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:33:31,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:31,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:31,347 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:33:31,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:33:31,348 INFO L85 PathProgramCache]: Analyzing trace with hash 474423124, now seen corresponding path program 1 times [2023-12-16 12:33:31,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:33:31,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068440775] [2023-12-16 12:33:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:33:31,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:31,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:33:31,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:33:31,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 12:33:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:33:31,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 12:33:31,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:33:32,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-16 12:33:32,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:33:32,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:33:32,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068440775] [2023-12-16 12:33:32,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068440775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:33:32,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:33:32,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 12:33:32,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753605154] [2023-12-16 12:33:32,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:33:32,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 12:33:32,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:33:32,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 12:33:32,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 12:33:32,695 INFO L87 Difference]: Start difference. First operand 193 states and 299 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 12:33:36,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:40,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:44,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:44,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:33:44,381 INFO L93 Difference]: Finished difference Result 504 states and 779 transitions. [2023-12-16 12:33:44,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 12:33:44,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 248 [2023-12-16 12:33:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:33:44,427 INFO L225 Difference]: With dead ends: 504 [2023-12-16 12:33:44,427 INFO L226 Difference]: Without dead ends: 312 [2023-12-16 12:33:44,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:33:44,430 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 123 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-16 12:33:44,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 451 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-12-16 12:33:44,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-16 12:33:44,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 266. [2023-12-16 12:33:44,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 142 states have (on average 1.204225352112676) internal successors, (171), 142 states have internal predecessors, (171), 120 states have call successors, (120), 3 states have call predecessors, (120), 3 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-16 12:33:44,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 411 transitions. [2023-12-16 12:33:44,528 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 411 transitions. Word has length 248 [2023-12-16 12:33:44,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:33:44,529 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 411 transitions. [2023-12-16 12:33:44,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 12:33:44,530 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 411 transitions. [2023-12-16 12:33:44,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-16 12:33:44,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:33:44,537 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:33:44,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:44,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:44,755 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:33:44,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:33:44,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1214520618, now seen corresponding path program 1 times [2023-12-16 12:33:44,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:33:44,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579895864] [2023-12-16 12:33:44,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:33:44,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:44,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:33:44,760 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:33:44,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 12:33:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:33:45,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 12:33:45,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:33:46,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-16 12:33:46,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:33:46,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:33:46,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579895864] [2023-12-16 12:33:46,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579895864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:33:46,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:33:46,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 12:33:46,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209721354] [2023-12-16 12:33:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:33:46,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 12:33:46,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:33:46,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 12:33:46,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 12:33:46,319 INFO L87 Difference]: Start difference. First operand 266 states and 411 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 12:33:49,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:53,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:33:53,819 INFO L93 Difference]: Finished difference Result 484 states and 751 transitions. [2023-12-16 12:33:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 12:33:53,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 248 [2023-12-16 12:33:53,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:33:53,825 INFO L225 Difference]: With dead ends: 484 [2023-12-16 12:33:53,825 INFO L226 Difference]: Without dead ends: 292 [2023-12-16 12:33:53,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 12:33:53,826 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 17 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-16 12:33:53,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 315 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-16 12:33:53,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-12-16 12:33:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 284. [2023-12-16 12:33:53,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 160 states have (on average 1.21875) internal successors, (195), 160 states have internal predecessors, (195), 120 states have call successors, (120), 3 states have call predecessors, (120), 3 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-16 12:33:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 435 transitions. [2023-12-16 12:33:53,846 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 435 transitions. Word has length 248 [2023-12-16 12:33:53,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:33:53,846 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 435 transitions. [2023-12-16 12:33:53,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 12:33:53,847 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 435 transitions. [2023-12-16 12:33:53,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-12-16 12:33:53,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:33:53,849 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:33:53,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:54,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:54,065 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:33:54,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:33:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash -775922657, now seen corresponding path program 1 times [2023-12-16 12:33:54,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:33:54,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998641951] [2023-12-16 12:33:54,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:33:54,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:54,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:33:54,068 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:33:54,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 12:33:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:33:54,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:33:54,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:33:54,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-16 12:33:54,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:33:54,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:33:54,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998641951] [2023-12-16 12:33:54,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998641951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:33:54,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:33:54,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 12:33:54,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441163747] [2023-12-16 12:33:54,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:33:54,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:33:54,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:33:54,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:33:54,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:33:54,844 INFO L87 Difference]: Start difference. First operand 284 states and 435 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 12:33:59,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:33:59,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:33:59,177 INFO L93 Difference]: Finished difference Result 484 states and 739 transitions. [2023-12-16 12:33:59,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:33:59,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 249 [2023-12-16 12:33:59,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:33:59,179 INFO L225 Difference]: With dead ends: 484 [2023-12-16 12:33:59,180 INFO L226 Difference]: Without dead ends: 292 [2023-12-16 12:33:59,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:33:59,181 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 38 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-16 12:33:59,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 259 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-16 12:33:59,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-12-16 12:33:59,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2023-12-16 12:33:59,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 166 states have (on average 1.1987951807228916) internal successors, (199), 166 states have internal predecessors, (199), 120 states have call successors, (120), 5 states have call predecessors, (120), 5 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-16 12:33:59,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 439 transitions. [2023-12-16 12:33:59,204 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 439 transitions. Word has length 249 [2023-12-16 12:33:59,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:33:59,207 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 439 transitions. [2023-12-16 12:33:59,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 12:33:59,208 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 439 transitions. [2023-12-16 12:33:59,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-16 12:33:59,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:33:59,210 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:33:59,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:59,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:59,428 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:33:59,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:33:59,429 INFO L85 PathProgramCache]: Analyzing trace with hash 826983927, now seen corresponding path program 1 times [2023-12-16 12:33:59,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:33:59,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527164256] [2023-12-16 12:33:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:33:59,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:33:59,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:33:59,432 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:33:59,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 12:34:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:34:00,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:34:00,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:34:00,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1467 proven. 75 refuted. 0 times theorem prover too weak. 1578 trivial. 0 not checked. [2023-12-16 12:34:00,665 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:34:01,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 42 proven. 75 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2023-12-16 12:34:01,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:34:01,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527164256] [2023-12-16 12:34:01,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527164256] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:34:01,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:34:01,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-16 12:34:01,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809688886] [2023-12-16 12:34:01,123 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:34:01,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 12:34:01,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:34:01,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 12:34:01,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 12:34:01,124 INFO L87 Difference]: Start difference. First operand 292 states and 439 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2023-12-16 12:34:06,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:34:08,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:34:08,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:34:08,408 INFO L93 Difference]: Finished difference Result 421 states and 617 transitions. [2023-12-16 12:34:08,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 12:34:08,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 250 [2023-12-16 12:34:08,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:34:08,454 INFO L225 Difference]: With dead ends: 421 [2023-12-16 12:34:08,454 INFO L226 Difference]: Without dead ends: 320 [2023-12-16 12:34:08,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 491 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-12-16 12:34:08,455 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 270 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 254 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:34:08,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 220 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 211 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2023-12-16 12:34:08,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-12-16 12:34:08,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 304. [2023-12-16 12:34:08,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 175 states have (on average 1.177142857142857) internal successors, (206), 175 states have internal predecessors, (206), 120 states have call successors, (120), 8 states have call predecessors, (120), 8 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-16 12:34:08,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 446 transitions. [2023-12-16 12:34:08,475 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 446 transitions. Word has length 250 [2023-12-16 12:34:08,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:34:08,475 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 446 transitions. [2023-12-16 12:34:08,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2023-12-16 12:34:08,475 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 446 transitions. [2023-12-16 12:34:08,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-16 12:34:08,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:34:08,477 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:34:08,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 12:34:08,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:34:08,698 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:34:08,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:34:08,699 INFO L85 PathProgramCache]: Analyzing trace with hash -134574033, now seen corresponding path program 1 times [2023-12-16 12:34:08,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:34:08,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210764909] [2023-12-16 12:34:08,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:34:08,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:34:08,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:34:08,717 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:34:08,744 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 (8)] Waiting until timeout for monitored process [2023-12-16 12:34:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:34:09,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-16 12:34:09,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:34:25,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:34:25,582 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 (8)] Ended with exit code 0 [2023-12-16 12:34:25,595 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:34:25,595 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:34:25,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:34:25,766 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 251 with TraceHistMax 40,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-5-2-2-1 context. [2023-12-16 12:34:25,769 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:34:25,771 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:34:25,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:34:25 BoogieIcfgContainer [2023-12-16 12:34:25,773 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:34:25,773 INFO L158 Benchmark]: Toolchain (without parser) took 76687.19ms. Allocated memory is still 349.2MB. Free memory was 293.1MB in the beginning and 144.6MB in the end (delta: 148.5MB). Peak memory consumption was 149.3MB. Max. memory is 8.0GB. [2023-12-16 12:34:25,773 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:34:25,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.72ms. Allocated memory is still 349.2MB. Free memory was 293.1MB in the beginning and 275.6MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 12:34:25,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.80ms. Allocated memory is still 349.2MB. Free memory was 275.6MB in the beginning and 272.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:34:25,774 INFO L158 Benchmark]: Boogie Preprocessor took 51.55ms. Allocated memory is still 349.2MB. Free memory was 272.5MB in the beginning and 268.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 12:34:25,774 INFO L158 Benchmark]: RCFGBuilder took 8626.28ms. Allocated memory is still 349.2MB. Free memory was 268.0MB in the beginning and 307.2MB in the end (delta: -39.3MB). Peak memory consumption was 32.8MB. Max. memory is 8.0GB. [2023-12-16 12:34:25,774 INFO L158 Benchmark]: TraceAbstraction took 67632.17ms. Allocated memory is still 349.2MB. Free memory was 306.7MB in the beginning and 144.6MB in the end (delta: 162.1MB). Peak memory consumption was 161.6MB. Max. memory is 8.0GB. [2023-12-16 12:34:25,775 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 316.72ms. Allocated memory is still 349.2MB. Free memory was 293.1MB in the beginning and 275.6MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.80ms. Allocated memory is still 349.2MB. Free memory was 275.6MB in the beginning and 272.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.55ms. Allocated memory is still 349.2MB. Free memory was 272.5MB in the beginning and 268.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 8626.28ms. Allocated memory is still 349.2MB. Free memory was 268.0MB in the beginning and 307.2MB in the end (delta: -39.3MB). Peak memory consumption was 32.8MB. Max. memory is 8.0GB. * TraceAbstraction took 67632.17ms. Allocated memory is still 349.2MB. Free memory was 306.7MB in the beginning and 144.6MB in the end (delta: 162.1MB). Peak memory consumption was 161.6MB. 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 251 with TraceHistMax 40,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-5-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 100 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.6s, OverallIterations: 7, TraceHistogramMax: 40, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 41.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 638 SdHoareTripleChecker+Valid, 40.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 636 mSDsluCounter, 1872 SdHoareTripleChecker+Invalid, 39.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1037 mSDsCounter, 421 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 566 IncrementalHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 421 mSolverCounterUnsat, 835 mSDtfsCounter, 566 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1742 GetRequests, 1714 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=6, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 95 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1487 NumberOfCodeBlocks, 1487 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1730 ConstructedInterpolants, 0 QuantifiedInterpolants, 3828 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2439 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 21690/21840 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