/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-90.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 17:00:21,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 17:00:21,242 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 17:00:21,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 17:00:21,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 17:00:21,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 17:00:21,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 17:00:21,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 17:00:21,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 17:00:21,281 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 17:00:21,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 17:00:21,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 17:00:21,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 17:00:21,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 17:00:21,284 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 17:00:21,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 17:00:21,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 17:00:21,284 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 17:00:21,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 17:00:21,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 17:00:21,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 17:00:21,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 17:00:21,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 17:00:21,285 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 17:00:21,286 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 17:00:21,286 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 17:00:21,286 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 17:00:21,286 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 17:00:21,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 17:00:21,286 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 17:00:21,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 17:00:21,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 17:00:21,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 17:00:21,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 17:00:21,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 17:00:21,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 17:00:21,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 17:00:21,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 17:00:21,289 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 17:00:21,289 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 17:00:21,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 17:00:21,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 17:00:21,289 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 17:00:21,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 17:00:21,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 17:00:21,290 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 17:00:21,290 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 17:00:21,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 17:00:21,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 17:00:21,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 17:00:21,566 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 17:00:21,574 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 17:00:21,575 INFO L431 ainManager$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-90.i [2023-12-23 17:00:22,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 17:00:22,957 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 17:00:22,958 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-90.i [2023-12-23 17:00:22,964 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647156b78/3ff0f953e1464ca1a42f9a5678eb5f6c/FLAG15db9eedf [2023-12-23 17:00:22,974 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647156b78/3ff0f953e1464ca1a42f9a5678eb5f6c [2023-12-23 17:00:22,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 17:00:22,977 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 17:00:22,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 17:00:22,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 17:00:22,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 17:00:22,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:00:22" (1/1) ... [2023-12-23 17:00:22,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1352275b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:22, skipping insertion in model container [2023-12-23 17:00:22,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:00:22" (1/1) ... [2023-12-23 17:00:23,014 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 17:00:23,136 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-90.i[919,932] [2023-12-23 17:00:23,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 17:00:23,216 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 17:00:23,224 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-90.i[919,932] [2023-12-23 17:00:23,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 17:00:23,268 INFO L206 MainTranslator]: Completed translation [2023-12-23 17:00:23,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23 WrapperNode [2023-12-23 17:00:23,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 17:00:23,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 17:00:23,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 17:00:23,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 17:00:23,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,307 INFO L138 Inliner]: procedures = 27, calls = 58, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 238 [2023-12-23 17:00:23,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 17:00:23,308 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 17:00:23,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 17:00:23,308 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 17:00:23,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,330 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 17:00:23,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 17:00:23,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 17:00:23,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 17:00:23,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 17:00:23,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (1/1) ... [2023-12-23 17:00:23,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 17:00:23,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 17:00:23,385 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 17:00:23,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 17:00:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 17:00:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 17:00:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 17:00:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 17:00:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 17:00:23,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 17:00:23,533 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 17:00:23,535 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 17:00:24,726 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 17:00:24,795 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 17:00:24,795 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 17:00:24,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:00:24 BoogieIcfgContainer [2023-12-23 17:00:24,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 17:00:24,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 17:00:24,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 17:00:24,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 17:00:24,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:00:22" (1/3) ... [2023-12-23 17:00:24,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734c13a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:00:24, skipping insertion in model container [2023-12-23 17:00:24,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:00:23" (2/3) ... [2023-12-23 17:00:24,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734c13a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:00:24, skipping insertion in model container [2023-12-23 17:00:24,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:00:24" (3/3) ... [2023-12-23 17:00:24,801 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-90.i [2023-12-23 17:00:24,813 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 17:00:24,813 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 17:00:24,862 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 17:00:24,867 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;@12ef80ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 17:00:24,867 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 17:00:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 56 states have internal predecessors, (81), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-23 17:00:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-23 17:00:24,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 17:00:24,895 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:24,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 17:00:24,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 17:00:24,900 INFO L85 PathProgramCache]: Analyzing trace with hash -567861511, now seen corresponding path program 1 times [2023-12-23 17:00:24,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 17:00:24,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509876402] [2023-12-23 17:00:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 17:00:24,914 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 17:00:24,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 17:00:24,917 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 17:00:24,918 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 17:00:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 17:00:25,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 17:00:25,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 17:00:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 868 proven. 0 refuted. 0 times theorem prover too weak. 3092 trivial. 0 not checked. [2023-12-23 17:00:25,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 17:00:25,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 17:00:25,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509876402] [2023-12-23 17:00:25,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509876402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 17:00:25,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 17:00:25,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 17:00:25,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937509411] [2023-12-23 17:00:25,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 17:00:25,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 17:00:25,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 17:00:25,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 17:00:25,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 17:00:25,390 INFO L87 Difference]: Start difference. First operand has 103 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 56 states have internal predecessors, (81), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-23 17:00:25,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 17:00:25,776 INFO L93 Difference]: Finished difference Result 203 states and 385 transitions. [2023-12-23 17:00:25,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 17:00:25,789 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 266 [2023-12-23 17:00:25,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 17:00:25,795 INFO L225 Difference]: With dead ends: 203 [2023-12-23 17:00:25,795 INFO L226 Difference]: Without dead ends: 101 [2023-12-23 17:00:25,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 265 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 17:00:25,807 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-23 17:00:25,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-23 17:00:25,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-23 17:00:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-12-23 17:00:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 54 states have internal predecessors, (75), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-23 17:00:25,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 165 transitions. [2023-12-23 17:00:25,860 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 165 transitions. Word has length 266 [2023-12-23 17:00:25,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 17:00:25,861 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 165 transitions. [2023-12-23 17:00:25,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-23 17:00:25,862 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 165 transitions. [2023-12-23 17:00:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-23 17:00:25,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 17:00:25,867 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:25,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-23 17:00:26,071 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 17:00:26,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 17:00:26,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 17:00:26,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1501957491, now seen corresponding path program 1 times [2023-12-23 17:00:26,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 17:00:26,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887013655] [2023-12-23 17:00:26,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 17:00:26,073 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 17:00:26,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 17:00:26,077 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 17:00:26,101 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 17:00:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 17:00:26,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 17:00:26,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 17:00:28,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1409 proven. 210 refuted. 0 times theorem prover too weak. 2341 trivial. 0 not checked. [2023-12-23 17:00:28,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 17:00:28,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 17:00:28,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887013655] [2023-12-23 17:00:28,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887013655] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 17:00:28,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [381440987] [2023-12-23 17:00:28,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 17:00:28,698 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 17:00:28,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 17:00:28,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 17:00:28,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-23 17:00:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 17:00:30,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-23 17:00:30,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 17:00:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1409 proven. 210 refuted. 0 times theorem prover too weak. 2341 trivial. 0 not checked. [2023-12-23 17:00:31,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 17:00:32,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [381440987] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 17:00:32,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 17:00:32,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2023-12-23 17:00:32,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990839738] [2023-12-23 17:00:32,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 17:00:32,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-23 17:00:32,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 17:00:32,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-23 17:00:32,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-12-23 17:00:32,372 INFO L87 Difference]: Start difference. First operand 101 states and 165 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (45), 3 states have call predecessors, (45), 5 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-23 17:00:35,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 17:00:35,014 INFO L93 Difference]: Finished difference Result 356 states and 564 transitions. [2023-12-23 17:00:35,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-23 17:00:35,015 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (45), 3 states have call predecessors, (45), 5 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 266 [2023-12-23 17:00:35,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 17:00:35,018 INFO L225 Difference]: With dead ends: 356 [2023-12-23 17:00:35,018 INFO L226 Difference]: Without dead ends: 256 [2023-12-23 17:00:35,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 958 GetRequests, 930 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2023-12-23 17:00:35,020 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 260 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-23 17:00:35,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 821 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-23 17:00:35,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-12-23 17:00:35,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 230. [2023-12-23 17:00:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 128 states have (on average 1.3828125) internal successors, (177), 129 states have internal predecessors, (177), 96 states have call successors, (96), 5 states have call predecessors, (96), 5 states have return successors, (96), 95 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-23 17:00:35,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 369 transitions. [2023-12-23 17:00:35,121 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 369 transitions. Word has length 266 [2023-12-23 17:00:35,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 17:00:35,123 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 369 transitions. [2023-12-23 17:00:35,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (45), 3 states have call predecessors, (45), 5 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2023-12-23 17:00:35,124 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 369 transitions. [2023-12-23 17:00:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-23 17:00:35,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 17:00:35,126 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:35,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-23 17:00:35,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 17:00:35,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 17:00:35,527 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 17:00:35,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 17:00:35,528 INFO L85 PathProgramCache]: Analyzing trace with hash 692610865, now seen corresponding path program 1 times [2023-12-23 17:00:35,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 17:00:35,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59296037] [2023-12-23 17:00:35,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 17:00:35,529 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 17:00:35,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 17:00:35,530 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 17:00:35,532 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 17:00:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 17:00:36,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-23 17:00:36,128 INFO L285 TraceCheckSpWp]: Computing forward predicates...