/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-ps-co_file-22.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 16:07:42,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 16:07:42,437 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 16:07:42,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 16:07:42,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 16:07:42,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 16:07:42,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 16:07:42,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 16:07:42,465 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 16:07:42,468 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 16:07:42,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 16:07:42,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 16:07:42,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 16:07:42,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 16:07:42,470 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 16:07:42,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 16:07:42,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 16:07:42,471 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 16:07:42,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 16:07:42,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 16:07:42,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 16:07:42,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 16:07:42,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 16:07:42,473 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 16:07:42,473 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 16:07:42,473 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 16:07:42,473 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 16:07:42,473 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 16:07:42,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 16:07:42,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 16:07:42,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 16:07:42,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 16:07:42,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 16:07:42,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 16:07:42,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 16:07:42,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 16:07:42,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 16:07:42,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 16:07:42,475 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 16:07:42,475 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 16:07:42,475 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 16:07:42,475 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 16:07:42,476 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 16:07:42,476 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 16:07:42,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 16:07:42,476 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 16:07:42,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 16:07:42,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 16:07:42,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 16:07:42,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 16:07:42,694 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 16:07:42,695 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 16:07:42,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-22.i [2023-12-23 16:07:43,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 16:07:43,901 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 16:07:43,902 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-22.i [2023-12-23 16:07:43,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bf1e191/1a1a297116524dda815e2e978151eaee/FLAG2cded4b3c [2023-12-23 16:07:43,924 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bf1e191/1a1a297116524dda815e2e978151eaee [2023-12-23 16:07:43,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 16:07:43,927 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 16:07:43,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 16:07:43,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 16:07:43,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 16:07:43,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:07:43" (1/1) ... [2023-12-23 16:07:43,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142aeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:43, skipping insertion in model container [2023-12-23 16:07:43,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:07:43" (1/1) ... [2023-12-23 16:07:43,967 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 16:07:44,066 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-ps-co_file-22.i[919,932] [2023-12-23 16:07:44,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 16:07:44,121 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 16:07:44,129 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-ps-co_file-22.i[919,932] [2023-12-23 16:07:44,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 16:07:44,167 INFO L206 MainTranslator]: Completed translation [2023-12-23 16:07:44,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44 WrapperNode [2023-12-23 16:07:44,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 16:07:44,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 16:07:44,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 16:07:44,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 16:07:44,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,200 INFO L138 Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 219 [2023-12-23 16:07:44,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 16:07:44,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 16:07:44,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 16:07:44,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 16:07:44,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,212 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,223 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 16:07:44,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 16:07:44,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 16:07:44,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 16:07:44,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 16:07:44,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (1/1) ... [2023-12-23 16:07:44,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 16:07:44,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 16:07:44,285 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 16:07:44,306 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 16:07:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 16:07:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 16:07:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 16:07:44,313 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 16:07:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 16:07:44,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 16:07:44,394 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 16:07:44,396 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 16:07:56,519 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 16:07:56,560 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 16:07:56,560 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 16:07:56,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:07:56 BoogieIcfgContainer [2023-12-23 16:07:56,561 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 16:07:56,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 16:07:56,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 16:07:56,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 16:07:56,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:07:43" (1/3) ... [2023-12-23 16:07:56,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db74de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:07:56, skipping insertion in model container [2023-12-23 16:07:56,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:07:44" (2/3) ... [2023-12-23 16:07:56,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db74de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:07:56, skipping insertion in model container [2023-12-23 16:07:56,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:07:56" (3/3) ... [2023-12-23 16:07:56,567 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-22.i [2023-12-23 16:07:56,581 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 16:07:56,581 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 16:07:56,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 16:07:56,637 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;@19cbf7cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 16:07:56,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 16:07:56,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 53 states have internal predecessors, (74), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 16:07:56,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-23 16:07:56,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:07:56,663 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:07:56,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:07:56,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:07:56,668 INFO L85 PathProgramCache]: Analyzing trace with hash -169338011, now seen corresponding path program 1 times [2023-12-23 16:07:56,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:07:56,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868783279] [2023-12-23 16:07:56,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:07:56,678 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 16:07:56,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:07:56,680 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 16:07:56,698 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 16:07:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:07:57,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 16:07:57,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:07:57,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1274 proven. 0 refuted. 0 times theorem prover too weak. 1538 trivial. 0 not checked. [2023-12-23 16:07:57,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:07:57,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:07:57,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868783279] [2023-12-23 16:07:57,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868783279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:07:57,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:07:57,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 16:07:57,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342177238] [2023-12-23 16:07:57,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:07:57,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 16:07:57,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:07:57,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 16:07:57,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 16:07:57,704 INFO L87 Difference]: Start difference. First operand has 93 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 53 states have internal predecessors, (74), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-23 16:08:02,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:08:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:08:02,370 INFO L93 Difference]: Finished difference Result 180 states and 330 transitions. [2023-12-23 16:08:02,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 16:08:02,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 232 [2023-12-23 16:08:02,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:08:02,616 INFO L225 Difference]: With dead ends: 180 [2023-12-23 16:08:02,617 INFO L226 Difference]: Without dead ends: 88 [2023-12-23 16:08:02,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 231 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 16:08:02,622 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-23 16:08:02,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2023-12-23 16:08:02,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-12-23 16:08:02,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-12-23 16:08:02,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 48 states have internal predecessors, (59), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 16:08:02,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 135 transitions. [2023-12-23 16:08:02,656 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 135 transitions. Word has length 232 [2023-12-23 16:08:02,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:08:02,656 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 135 transitions. [2023-12-23 16:08:02,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-23 16:08:02,657 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 135 transitions. [2023-12-23 16:08:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-23 16:08:02,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:08:02,660 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:08:02,684 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 16:08:02,880 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 16:08:02,881 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:08:02,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:08:02,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1917940827, now seen corresponding path program 1 times [2023-12-23 16:08:02,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:08:02,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870804620] [2023-12-23 16:08:02,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:08:02,882 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 16:08:02,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:08:02,883 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 16:08:02,885 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 16:08:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:08:03,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 16:08:03,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:08:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-23 16:08:09,799 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:08:09,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:08:09,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870804620] [2023-12-23 16:08:09,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870804620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:08:09,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:08:09,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 16:08:09,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298049243] [2023-12-23 16:08:09,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:08:09,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 16:08:09,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:08:09,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 16:08:09,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 16:08:09,802 INFO L87 Difference]: Start difference. First operand 88 states and 135 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-23 16:08:14,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:08:18,521 WARN L539 Checker$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 16:08:18,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:08:18,874 INFO L93 Difference]: Finished difference Result 251 states and 389 transitions. [2023-12-23 16:08:18,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 16:08:18,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 232 [2023-12-23 16:08:18,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:08:18,880 INFO L225 Difference]: With dead ends: 251 [2023-12-23 16:08:18,880 INFO L226 Difference]: Without dead ends: 164 [2023-12-23 16:08:18,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 16:08:18,882 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 15 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-12-23 16:08:18,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 255 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2023-12-23 16:08:18,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-12-23 16:08:18,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 155. [2023-12-23 16:08:18,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 76 states have (on average 1.144736842105263) internal successors, (87), 76 states have internal predecessors, (87), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-23 16:08:18,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 239 transitions. [2023-12-23 16:08:18,907 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 239 transitions. Word has length 232 [2023-12-23 16:08:18,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:08:18,908 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 239 transitions. [2023-12-23 16:08:18,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-23 16:08:18,908 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 239 transitions. [2023-12-23 16:08:18,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-23 16:08:18,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:08:18,911 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:08:18,935 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 16:08:19,132 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 16:08:19,133 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:08:19,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:08:19,133 INFO L85 PathProgramCache]: Analyzing trace with hash 788678567, now seen corresponding path program 1 times [2023-12-23 16:08:19,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:08:19,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125473491] [2023-12-23 16:08:19,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:08:19,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 16:08:19,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:08:19,135 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 16:08:19,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 16:08:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:08:20,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 16:08:20,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:08:26,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-23 16:08:26,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:08:26,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:08:26,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125473491] [2023-12-23 16:08:26,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125473491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:08:26,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:08:26,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 16:08:26,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834767194] [2023-12-23 16:08:26,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:08:26,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 16:08:26,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:08:26,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 16:08:26,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 16:08:26,121 INFO L87 Difference]: Start difference. First operand 155 states and 239 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-23 16:08:30,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:08:34,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:08:38,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:08:43,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:08:47,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:08:51,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:08:52,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:08:52,172 INFO L93 Difference]: Finished difference Result 329 states and 507 transitions. [2023-12-23 16:08:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 16:08:52,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 232 [2023-12-23 16:08:52,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:08:52,182 INFO L225 Difference]: With dead ends: 329 [2023-12-23 16:08:52,183 INFO L226 Difference]: Without dead ends: 242 [2023-12-23 16:08:52,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 16:08:52,189 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 27 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2023-12-23 16:08:52,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 262 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 6 Unknown, 0 Unchecked, 26.0s Time] [2023-12-23 16:08:52,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-23 16:08:52,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 240. [2023-12-23 16:08:52,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 122 states have (on average 1.1721311475409837) internal successors, (143), 122 states have internal predecessors, (143), 114 states have call successors, (114), 3 states have call predecessors, (114), 3 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-23 16:08:52,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 371 transitions. [2023-12-23 16:08:52,234 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 371 transitions. Word has length 232 [2023-12-23 16:08:52,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:08:52,235 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 371 transitions. [2023-12-23 16:08:52,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-23 16:08:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 371 transitions. [2023-12-23 16:08:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-23 16:08:52,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:08:52,240 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:08:52,265 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 16:08:52,461 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 16:08:52,462 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:08:52,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:08:52,463 INFO L85 PathProgramCache]: Analyzing trace with hash -933365860, now seen corresponding path program 1 times [2023-12-23 16:08:52,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:08:52,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180098409] [2023-12-23 16:08:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:08:52,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 16:08:52,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:08:52,465 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 16:08:52,496 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 16:08:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:08:53,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 16:08:53,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:08:56,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-23 16:08:56,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:08:56,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:08:56,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180098409] [2023-12-23 16:08:56,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180098409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:08:56,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:08:56,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 16:08:56,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350564492] [2023-12-23 16:08:56,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:08:56,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 16:08:56,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:08:56,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 16:08:56,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 16:08:56,445 INFO L87 Difference]: Start difference. First operand 240 states and 371 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-23 16:09:01,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:09:01,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:09:01,411 INFO L93 Difference]: Finished difference Result 412 states and 637 transitions. [2023-12-23 16:09:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 16:09:01,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 233 [2023-12-23 16:09:01,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:09:01,666 INFO L225 Difference]: With dead ends: 412 [2023-12-23 16:09:01,666 INFO L226 Difference]: Without dead ends: 240 [2023-12-23 16:09:01,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 16:09:01,667 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 78 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-23 16:09:01,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 129 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-12-23 16:09:01,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-12-23 16:09:01,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2023-12-23 16:09:01,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 122 states have (on average 1.1557377049180328) internal successors, (141), 122 states have internal predecessors, (141), 114 states have call successors, (114), 3 states have call predecessors, (114), 3 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-23 16:09:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 369 transitions. [2023-12-23 16:09:01,701 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 369 transitions. Word has length 233 [2023-12-23 16:09:01,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:09:01,702 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 369 transitions. [2023-12-23 16:09:01,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-23 16:09:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 369 transitions. [2023-12-23 16:09:01,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-23 16:09:01,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:09:01,707 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:09:01,729 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 [2023-12-23 16:09:01,920 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 16:09:01,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:09:01,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:09:01,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1944483110, now seen corresponding path program 1 times [2023-12-23 16:09:01,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:09:01,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049439000] [2023-12-23 16:09:01,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:09:01,922 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 16:09:01,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:09:01,923 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 16:09:01,925 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 16:09:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:09:02,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 16:09:02,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:09:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 608 proven. 192 refuted. 0 times theorem prover too weak. 2012 trivial. 0 not checked. [2023-12-23 16:09:12,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:09:14,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:09:14,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049439000] [2023-12-23 16:09:14,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049439000] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 16:09:14,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [303654226] [2023-12-23 16:09:14,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:09:14,416 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 16:09:14,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 16:09:14,465 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 16:09:14,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-23 16:09:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:09:16,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 16:09:16,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:09:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 573 proven. 99 refuted. 0 times theorem prover too weak. 2140 trivial. 0 not checked. [2023-12-23 16:09:22,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:09:23,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [303654226] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 16:09:23,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 16:09:23,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 11 [2023-12-23 16:09:23,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736999231] [2023-12-23 16:09:23,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 16:09:23,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-23 16:09:23,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:09:23,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-23 16:09:23,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-12-23 16:09:23,678 INFO L87 Difference]: Start difference. First operand 240 states and 369 transitions. Second operand has 12 states, 12 states have (on average 7.5) internal successors, (90), 11 states have internal predecessors, (90), 3 states have call successors, (70), 3 states have call predecessors, (70), 5 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2023-12-23 16:09:32,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:09:36,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:09:40,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:09:44,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:09:48,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:09:52,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:09:57,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:10:01,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:10:05,464 WARN L539 Checker$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 16:10:09,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:10:13,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:10:17,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:10:21,510 WARN L539 Checker$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 16:10:25,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:10:30,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:10:35,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:10:39,289 WARN L539 Checker$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 16:10:43,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:10:47,309 WARN L539 Checker$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 16:10:51,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:10:55,321 WARN L539 Checker$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 16:10:59,328 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 16:10:59,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:10:59,786 INFO L93 Difference]: Finished difference Result 449 states and 677 transitions. [2023-12-23 16:11:00,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-23 16:11:00,047 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.5) internal successors, (90), 11 states have internal predecessors, (90), 3 states have call successors, (70), 3 states have call predecessors, (70), 5 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 233 [2023-12-23 16:11:00,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:11:00,049 INFO L225 Difference]: With dead ends: 449 [2023-12-23 16:11:00,049 INFO L226 Difference]: Without dead ends: 277 [2023-12-23 16:11:00,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 857 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=288, Invalid=642, Unknown=0, NotChecked=0, Total=930 [2023-12-23 16:11:00,051 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 106 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 101 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.8s IncrementalHoareTripleChecker+Time [2023-12-23 16:11:00,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 524 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 391 Invalid, 22 Unknown, 0 Unchecked, 94.8s Time] [2023-12-23 16:11:00,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-12-23 16:11:00,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 259. [2023-12-23 16:11:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 139 states have (on average 1.1654676258992807) internal successors, (162), 139 states have internal predecessors, (162), 114 states have call successors, (114), 5 states have call predecessors, (114), 5 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-23 16:11:00,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 390 transitions. [2023-12-23 16:11:00,086 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 390 transitions. Word has length 233 [2023-12-23 16:11:00,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:11:00,087 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 390 transitions. [2023-12-23 16:11:00,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.5) internal successors, (90), 11 states have internal predecessors, (90), 3 states have call successors, (70), 3 states have call predecessors, (70), 5 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2023-12-23 16:11:00,087 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 390 transitions. [2023-12-23 16:11:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-23 16:11:00,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:11:00,090 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:00,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-23 16:11:00,324 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 (6)] Ended with exit code 0 [2023-12-23 16:11:00,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-23 16:11:00,505 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:11:00,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:11:00,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1541137560, now seen corresponding path program 1 times [2023-12-23 16:11:00,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:11:00,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502408906] [2023-12-23 16:11:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:11:00,507 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 16:11:00,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:11:00,508 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) [2023-12-23 16:11:00,508 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 [2023-12-23 16:11:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:11:01,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 16:11:01,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:11:09,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1505 proven. 249 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2023-12-23 16:11:09,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:11:09,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:11:09,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502408906] [2023-12-23 16:11:09,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502408906] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 16:11:09,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [951774145] [2023-12-23 16:11:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:11:09,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 16:11:09,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 16:11:09,810 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 16:11:09,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process Received shutdown request... [2023-12-23 16:22:27,395 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 [2023-12-23 16:22:27,396 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 16:22:27,396 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 16:22:28,446 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 (8)] Forceful destruction successful, exit code 0 [2023-12-23 16:22:28,583 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 0 [2023-12-23 16:22:28,605 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forcibly destroying the process [2023-12-23 16:22:28,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-23 16:22:28,764 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 16:22:28,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 16:22:28,764 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 234 with TraceHistMax 38,while AutomatonFreeRefinementEngine was Timeout during proof generation before using IpTcStrategyModuleZ3 [1471395126]. [2023-12-23 16:22:28,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 137 [2023-12-23 16:22:28,768 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-23 16:22:28,770 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 16:22:28,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 04:22:28 BoogieIcfgContainer [2023-12-23 16:22:28,771 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 16:22:28,771 INFO L158 Benchmark]: Toolchain (without parser) took 884844.71ms. Allocated memory was 300.9MB in the beginning and 361.8MB in the end (delta: 60.8MB). Free memory was 257.4MB in the beginning and 236.0MB in the end (delta: 21.4MB). Peak memory consumption was 83.0MB. Max. memory is 8.0GB. [2023-12-23 16:22:28,772 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 209.7MB. Free memory was 159.4MB in the beginning and 159.2MB in the end (delta: 180.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 16:22:28,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.59ms. Allocated memory is still 300.9MB. Free memory was 257.4MB in the beginning and 240.6MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-23 16:22:28,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.25ms. Allocated memory is still 300.9MB. Free memory was 240.6MB in the beginning and 237.9MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 16:22:28,772 INFO L158 Benchmark]: Boogie Preprocessor took 55.90ms. Allocated memory is still 300.9MB. Free memory was 237.9MB in the beginning and 233.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 16:22:28,772 INFO L158 Benchmark]: RCFGBuilder took 12303.29ms. Allocated memory is still 300.9MB. Free memory was 233.7MB in the beginning and 204.3MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-23 16:22:28,772 INFO L158 Benchmark]: TraceAbstraction took 872208.94ms. Allocated memory was 300.9MB in the beginning and 361.8MB in the end (delta: 60.8MB). Free memory was 203.7MB in the beginning and 236.0MB in the end (delta: -32.3MB). Peak memory consumption was 29.5MB. Max. memory is 8.0GB. [2023-12-23 16:22:28,773 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 209.7MB. Free memory was 159.4MB in the beginning and 159.2MB in the end (delta: 180.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 238.59ms. Allocated memory is still 300.9MB. Free memory was 257.4MB in the beginning and 240.6MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.25ms. Allocated memory is still 300.9MB. Free memory was 240.6MB in the beginning and 237.9MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.90ms. Allocated memory is still 300.9MB. Free memory was 237.9MB in the beginning and 233.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 12303.29ms. Allocated memory is still 300.9MB. Free memory was 233.7MB in the beginning and 204.3MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 872208.94ms. Allocated memory was 300.9MB in the beginning and 361.8MB in the end (delta: 60.8MB). Free memory was 203.7MB in the beginning and 236.0MB in the end (delta: -32.3MB). Peak memory consumption was 29.5MB. 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 234 with TraceHistMax 38,while AutomatonFreeRefinementEngine was Timeout during proof generation before using IpTcStrategyModuleZ3 [1471395126]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 872.1s, OverallIterations: 6, TraceHistogramMax: 38, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 141.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 mSolverCounterUnknown, 230 SdHoareTripleChecker+Valid, 139.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 230 mSDsluCounter, 1302 SdHoareTripleChecker+Invalid, 137.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 689 mSDsCounter, 179 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 179 mSolverCounterUnsat, 613 mSDtfsCounter, 420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1812 GetRequests, 1778 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=259occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 29 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.9s SatisfiabilityAnalysisTime, 34.3s InterpolantComputationTime, 1395 NumberOfCodeBlocks, 1395 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1389 ConstructedInterpolants, 0 QuantifiedInterpolants, 8090 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2242 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 16581/16872 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