/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_operatoramount_amount100_file-32.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:28:18,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:28:18,414 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 14:28:18,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:28:18,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:28:18,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:28:18,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:28:18,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:28:18,433 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:28:18,433 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:28:18,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:28:18,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:28:18,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:28:18,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:28:18,435 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:28:18,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:28:18,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:28:18,435 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:28:18,436 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:28:18,436 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:28:18,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:28:18,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:28:18,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:28:18,437 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:28:18,437 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:28:18,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:28:18,438 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:28:18,438 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:28:18,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:28:18,438 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:28:18,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:28:18,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:28:18,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:28:18,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:28:18,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:28:18,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:28:18,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:28:18,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:28:18,440 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:28:18,440 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:28:18,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:28:18,442 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:28:18,443 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:28:18,443 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:28:18,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:28:18,443 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:28:18,443 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:28:18,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:28:18,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:28:18,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:28:18,659 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:28:18,660 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:28:18,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-32.i [2023-12-16 14:28:19,853 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:28:20,049 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:28:20,050 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-32.i [2023-12-16 14:28:20,058 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd6693fc/8d04bd86a0bf4da988fc06f58f7a4e91/FLAG1c228f96f [2023-12-16 14:28:20,069 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd6693fc/8d04bd86a0bf4da988fc06f58f7a4e91 [2023-12-16 14:28:20,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:28:20,073 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:28:20,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:28:20,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:28:20,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:28:20,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555e5a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20, skipping insertion in model container [2023-12-16 14:28:20,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,108 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:28:20,209 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_operatoramount_amount100_file-32.i[916,929] [2023-12-16 14:28:20,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:28:20,283 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:28:20,293 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_operatoramount_amount100_file-32.i[916,929] [2023-12-16 14:28:20,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:28:20,356 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:28:20,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20 WrapperNode [2023-12-16 14:28:20,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:28:20,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:28:20,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:28:20,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:28:20,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,399 INFO L138 Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213 [2023-12-16 14:28:20,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:28:20,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:28:20,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:28:20,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:28:20,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,413 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,431 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 14:28:20,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:28:20,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:28:20,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:28:20,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:28:20,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (1/1) ... [2023-12-16 14:28:20,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:28:20,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:28:20,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 14:28:20,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 14:28:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:28:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:28:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:28:20,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:28:20,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:28:20,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:28:20,630 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:28:20,632 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:28:21,475 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:28:21,574 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:28:21,574 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:28:21,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:28:21 BoogieIcfgContainer [2023-12-16 14:28:21,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:28:21,592 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:28:21,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:28:21,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:28:21,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:28:20" (1/3) ... [2023-12-16 14:28:21,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea5ca0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:28:21, skipping insertion in model container [2023-12-16 14:28:21,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:28:20" (2/3) ... [2023-12-16 14:28:21,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea5ca0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:28:21, skipping insertion in model container [2023-12-16 14:28:21,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:28:21" (3/3) ... [2023-12-16 14:28:21,598 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-32.i [2023-12-16 14:28:21,615 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:28:21,617 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:28:21,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:28:21,680 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;@fde7557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:28:21,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:28:21,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 14:28:21,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-16 14:28:21,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:28:21,715 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:28:21,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:28:21,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:28:21,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1243266803, now seen corresponding path program 1 times [2023-12-16 14:28:21,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:28:21,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318961631] [2023-12-16 14:28:21,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:28:21,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:28:21,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:28:21,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:28:21,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 14:28:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:28:22,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:28:22,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:28:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1124 proven. 0 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2023-12-16 14:28:22,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:28:22,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:28:22,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318961631] [2023-12-16 14:28:22,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318961631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:28:22,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:28:22,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:28:22,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032414697] [2023-12-16 14:28:22,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:28:22,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:28:22,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:28:22,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:28:22,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:28:22,220 INFO L87 Difference]: Start difference. First operand has 90 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-16 14:28:22,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:28:22,547 INFO L93 Difference]: Finished difference Result 177 states and 327 transitions. [2023-12-16 14:28:22,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:28:22,569 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 213 [2023-12-16 14:28:22,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:28:22,575 INFO L225 Difference]: With dead ends: 177 [2023-12-16 14:28:22,575 INFO L226 Difference]: Without dead ends: 88 [2023-12-16 14:28:22,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:28:22,585 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 14:28:22,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 14:28:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-12-16 14:28:22,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-12-16 14:28:22,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 51 states have (on average 1.411764705882353) internal successors, (72), 51 states have internal predecessors, (72), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 14:28:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 142 transitions. [2023-12-16 14:28:22,642 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 142 transitions. Word has length 213 [2023-12-16 14:28:22,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:28:22,643 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 142 transitions. [2023-12-16 14:28:22,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-16 14:28:22,643 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 142 transitions. [2023-12-16 14:28:22,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-16 14:28:22,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:28:22,654 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:28:22,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 14:28:22,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:28:22,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:28:22,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:28:22,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1775572465, now seen corresponding path program 1 times [2023-12-16 14:28:22,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:28:22,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930254640] [2023-12-16 14:28:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:28:22,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:28:22,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:28:22,872 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:28:22,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 14:28:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:28:23,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 14:28:23,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:28:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 412 proven. 93 refuted. 0 times theorem prover too weak. 1875 trivial. 0 not checked. [2023-12-16 14:28:23,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:28:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 9 proven. 93 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2023-12-16 14:28:23,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:28:23,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930254640] [2023-12-16 14:28:23,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930254640] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:28:23,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:28:23,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 14:28:23,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651208258] [2023-12-16 14:28:23,998 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:28:24,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 14:28:24,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:28:24,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 14:28:24,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 14:28:24,004 INFO L87 Difference]: Start difference. First operand 88 states and 142 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2023-12-16 14:28:24,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:28:24,703 INFO L93 Difference]: Finished difference Result 183 states and 290 transitions. [2023-12-16 14:28:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 14:28:24,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 213 [2023-12-16 14:28:24,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:28:24,729 INFO L225 Difference]: With dead ends: 183 [2023-12-16 14:28:24,729 INFO L226 Difference]: Without dead ends: 96 [2023-12-16 14:28:24,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 14:28:24,730 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 107 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 14:28:24,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 225 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 14:28:24,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-16 14:28:24,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2023-12-16 14:28:24,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 54 states have (on average 1.3703703703703705) internal successors, (74), 54 states have internal predecessors, (74), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 14:28:24,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 144 transitions. [2023-12-16 14:28:24,742 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 144 transitions. Word has length 213 [2023-12-16 14:28:24,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:28:24,743 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 144 transitions. [2023-12-16 14:28:24,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2023-12-16 14:28:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 144 transitions. [2023-12-16 14:28:24,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-16 14:28:24,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:28:24,745 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:28:24,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 14:28:24,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:28:24,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:28:24,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:28:24,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1361030547, now seen corresponding path program 1 times [2023-12-16 14:28:24,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:28:24,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601854698] [2023-12-16 14:28:24,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:28:24,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:28:24,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:28:24,957 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:28:24,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 14:28:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:28:25,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 14:28:25,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:28:26,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 597 proven. 255 refuted. 0 times theorem prover too weak. 1528 trivial. 0 not checked. [2023-12-16 14:28:26,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:28:27,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 33 proven. 264 refuted. 0 times theorem prover too weak. 2083 trivial. 0 not checked. [2023-12-16 14:28:27,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:28:27,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601854698] [2023-12-16 14:28:27,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601854698] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:28:27,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:28:27,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2023-12-16 14:28:27,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423232448] [2023-12-16 14:28:27,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:28:27,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-16 14:28:27,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:28:27,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-16 14:28:27,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-16 14:28:27,271 INFO L87 Difference]: Start difference. First operand 92 states and 144 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 4 states have call successors, (66), 4 states have call predecessors, (66), 9 states have return successors, (67), 4 states have call predecessors, (67), 4 states have call successors, (67) [2023-12-16 14:28:29,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:28:29,450 INFO L93 Difference]: Finished difference Result 409 states and 610 transitions. [2023-12-16 14:28:29,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-16 14:28:29,451 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 4 states have call successors, (66), 4 states have call predecessors, (66), 9 states have return successors, (67), 4 states have call predecessors, (67), 4 states have call successors, (67) Word has length 214 [2023-12-16 14:28:29,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:28:29,454 INFO L225 Difference]: With dead ends: 409 [2023-12-16 14:28:29,454 INFO L226 Difference]: Without dead ends: 318 [2023-12-16 14:28:29,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 415 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1118, Invalid=3172, Unknown=0, NotChecked=0, Total=4290 [2023-12-16 14:28:29,457 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 318 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 14:28:29,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 569 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 14:28:29,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-12-16 14:28:29,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 193. [2023-12-16 14:28:29,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 112 states have (on average 1.3035714285714286) internal successors, (146), 114 states have internal predecessors, (146), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-16 14:28:29,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 290 transitions. [2023-12-16 14:28:29,508 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 290 transitions. Word has length 214 [2023-12-16 14:28:29,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:28:29,509 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 290 transitions. [2023-12-16 14:28:29,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 4 states have call successors, (66), 4 states have call predecessors, (66), 9 states have return successors, (67), 4 states have call predecessors, (67), 4 states have call successors, (67) [2023-12-16 14:28:29,509 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 290 transitions. [2023-12-16 14:28:29,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-16 14:28:29,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:28:29,510 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:28:29,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 14:28:29,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:28:29,719 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:28:29,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:28:29,720 INFO L85 PathProgramCache]: Analyzing trace with hash 680972177, now seen corresponding path program 1 times [2023-12-16 14:28:29,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:28:29,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937798591] [2023-12-16 14:28:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:28:29,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:28:29,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:28:29,723 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:28:29,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 14:28:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:28:30,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 14:28:30,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:28:31,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1396 proven. 60 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-16 14:28:31,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:28:31,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:28:31,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937798591] [2023-12-16 14:28:31,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937798591] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 14:28:31,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [129729692] [2023-12-16 14:28:31,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:28:31,231 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 14:28:31,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 14:28:31,277 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 14:28:31,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 14:28:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:28:32,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-16 14:28:32,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:28:35,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1534 proven. 168 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2023-12-16 14:28:35,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:28:35,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [129729692] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 14:28:35,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:28:35,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21] total 29 [2023-12-16 14:28:35,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844285532] [2023-12-16 14:28:35,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:28:35,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-16 14:28:35,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:28:35,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-16 14:28:35,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1008, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 14:28:35,499 INFO L87 Difference]: Start difference. First operand 193 states and 290 transitions. Second operand has 30 states, 30 states have (on average 3.4) internal successors, (102), 26 states have internal predecessors, (102), 9 states have call successors, (55), 9 states have call predecessors, (55), 12 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-16 14:28:41,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:28:41,690 INFO L93 Difference]: Finished difference Result 533 states and 781 transitions. [2023-12-16 14:28:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 14:28:41,707 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.4) internal successors, (102), 26 states have internal predecessors, (102), 9 states have call successors, (55), 9 states have call predecessors, (55), 12 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) Word has length 214 [2023-12-16 14:28:41,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:28:41,711 INFO L225 Difference]: With dead ends: 533 [2023-12-16 14:28:41,711 INFO L226 Difference]: Without dead ends: 344 [2023-12-16 14:28:41,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=754, Invalid=2906, Unknown=0, NotChecked=0, Total=3660 [2023-12-16 14:28:41,713 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 481 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 14:28:41,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1025 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 14:28:41,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-12-16 14:28:41,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 237. [2023-12-16 14:28:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 152 states have (on average 1.3223684210526316) internal successors, (201), 152 states have internal predecessors, (201), 70 states have call successors, (70), 14 states have call predecessors, (70), 14 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-16 14:28:41,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 341 transitions. [2023-12-16 14:28:41,735 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 341 transitions. Word has length 214 [2023-12-16 14:28:41,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:28:41,735 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 341 transitions. [2023-12-16 14:28:41,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.4) internal successors, (102), 26 states have internal predecessors, (102), 9 states have call successors, (55), 9 states have call predecessors, (55), 12 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-16 14:28:41,736 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 341 transitions. [2023-12-16 14:28:41,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-16 14:28:41,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:28:41,737 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:28:41,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 14:28:41,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-16 14:28:42,138 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 14:28:42,138 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:28:42,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:28:42,139 INFO L85 PathProgramCache]: Analyzing trace with hash -375298690, now seen corresponding path program 1 times [2023-12-16 14:28:42,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:28:42,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398573285] [2023-12-16 14:28:42,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:28:42,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:28:42,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:28:42,142 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:28:42,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 14:28:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:28:42,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 72 conjunts are in the unsatisfiable core [2023-12-16 14:28:42,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 14:29:27,842 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:29:27,842 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:29:28,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 14:29:28,987 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown