/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_fillercodesize_ps-cn-100_file-58.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 00:22:18,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 00:22:18,579 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 00:22:18,586 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 00:22:18,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 00:22:18,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 00:22:18,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 00:22:18,618 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 00:22:18,618 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 00:22:18,621 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 00:22:18,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 00:22:18,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 00:22:18,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 00:22:18,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 00:22:18,624 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 00:22:18,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 00:22:18,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 00:22:18,624 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 00:22:18,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 00:22:18,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 00:22:18,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 00:22:18,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 00:22:18,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 00:22:18,625 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 00:22:18,626 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 00:22:18,626 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 00:22:18,626 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 00:22:18,626 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 00:22:18,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 00:22:18,626 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 00:22:18,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 00:22:18,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 00:22:18,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 00:22:18,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 00:22:18,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 00:22:18,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 00:22:18,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 00:22:18,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 00:22:18,628 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 00:22:18,628 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 00:22:18,628 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 00:22:18,628 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 00:22:18,628 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 00:22:18,629 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 00:22:18,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 00:22:18,629 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 00:22:18,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 00:22:18,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 00:22:18,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 00:22:18,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 00:22:18,870 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 00:22:18,870 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 00:22:18,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-58.i [2023-12-23 00:22:20,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 00:22:20,301 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 00:22:20,301 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-58.i [2023-12-23 00:22:20,311 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbc7cede2/eab6f8b832834172ba2d90e7cfc45540/FLAG1a5d29b5f [2023-12-23 00:22:20,325 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbc7cede2/eab6f8b832834172ba2d90e7cfc45540 [2023-12-23 00:22:20,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 00:22:20,328 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 00:22:20,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 00:22:20,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 00:22:20,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 00:22:20,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbe8a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20, skipping insertion in model container [2023-12-23 00:22:20,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,385 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 00:22:20,499 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_fillercodesize_ps-cn-100_file-58.i[916,929] [2023-12-23 00:22:20,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 00:22:20,589 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 00:22:20,599 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_fillercodesize_ps-cn-100_file-58.i[916,929] [2023-12-23 00:22:20,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 00:22:20,678 INFO L206 MainTranslator]: Completed translation [2023-12-23 00:22:20,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20 WrapperNode [2023-12-23 00:22:20,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 00:22:20,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 00:22:20,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 00:22:20,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 00:22:20,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,737 INFO L138 Inliner]: procedures = 27, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 282 [2023-12-23 00:22:20,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 00:22:20,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 00:22:20,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 00:22:20,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 00:22:20,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,774 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 00:22:20,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 00:22:20,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 00:22:20,805 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 00:22:20,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 00:22:20,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (1/1) ... [2023-12-23 00:22:20,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 00:22:20,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 00:22:20,848 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 00:22:20,863 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 00:22:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 00:22:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 00:22:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 00:22:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 00:22:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 00:22:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 00:22:21,001 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 00:22:21,003 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 00:22:21,926 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 00:22:21,970 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 00:22:21,971 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 00:22:21,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:22:21 BoogieIcfgContainer [2023-12-23 00:22:21,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 00:22:21,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 00:22:21,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 00:22:21,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 00:22:21,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:22:20" (1/3) ... [2023-12-23 00:22:21,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66459eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:22:21, skipping insertion in model container [2023-12-23 00:22:21,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:22:20" (2/3) ... [2023-12-23 00:22:21,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66459eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:22:21, skipping insertion in model container [2023-12-23 00:22:21,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:22:21" (3/3) ... [2023-12-23 00:22:21,977 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-58.i [2023-12-23 00:22:21,991 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 00:22:21,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 00:22:22,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 00:22:22,033 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;@691dde74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 00:22:22,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 00:22:22,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-23 00:22:22,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-12-23 00:22:22,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:22:22,057 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:22:22,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:22:22,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:22:22,064 INFO L85 PathProgramCache]: Analyzing trace with hash 756277477, now seen corresponding path program 1 times [2023-12-23 00:22:22,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:22:22,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449759662] [2023-12-23 00:22:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:22:22,085 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 00:22:22,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:22:22,094 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 00:22:22,099 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 00:22:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:22:22,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 00:22:22,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:22:22,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1410 proven. 0 refuted. 0 times theorem prover too weak. 3490 trivial. 0 not checked. [2023-12-23 00:22:22,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:22:22,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:22:22,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449759662] [2023-12-23 00:22:22,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449759662] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:22:22,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:22:22,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 00:22:22,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987469738] [2023-12-23 00:22:22,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:22:22,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 00:22:22,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:22:22,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 00:22:22,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 00:22:22,727 INFO L87 Difference]: Start difference. First operand has 123 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-23 00:22:22,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:22:22,811 INFO L93 Difference]: Finished difference Result 243 states and 454 transitions. [2023-12-23 00:22:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 00:22:22,819 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 304 [2023-12-23 00:22:22,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:22:22,827 INFO L225 Difference]: With dead ends: 243 [2023-12-23 00:22:22,827 INFO L226 Difference]: Without dead ends: 121 [2023-12-23 00:22:22,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 303 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 00:22:22,836 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-23 00:22:22,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 195 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-23 00:22:22,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-23 00:22:22,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-12-23 00:22:22,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 69 states have internal predecessors, (98), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-23 00:22:22,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 198 transitions. [2023-12-23 00:22:22,879 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 198 transitions. Word has length 304 [2023-12-23 00:22:22,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:22:22,880 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 198 transitions. [2023-12-23 00:22:22,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-23 00:22:22,880 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 198 transitions. [2023-12-23 00:22:22,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-12-23 00:22:22,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:22:22,885 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:22:22,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 00:22:23,101 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 00:22:23,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:22:23,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:22:23,102 INFO L85 PathProgramCache]: Analyzing trace with hash 50563553, now seen corresponding path program 1 times [2023-12-23 00:22:23,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:22:23,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554358274] [2023-12-23 00:22:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:22:23,104 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 00:22:23,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:22:23,106 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 00:22:23,107 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 00:22:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:22:23,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 00:22:23,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:22:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2443 proven. 84 refuted. 0 times theorem prover too weak. 2373 trivial. 0 not checked. [2023-12-23 00:22:24,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 00:22:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 63 proven. 84 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2023-12-23 00:22:25,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:22:25,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554358274] [2023-12-23 00:22:25,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554358274] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 00:22:25,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 00:22:25,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-23 00:22:25,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458104703] [2023-12-23 00:22:25,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 00:22:25,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 00:22:25,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:22:25,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 00:22:25,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-23 00:22:25,439 INFO L87 Difference]: Start difference. First operand 121 states and 198 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (100), 3 states have call predecessors, (100), 5 states have return successors, (100), 4 states have call predecessors, (100), 4 states have call successors, (100) [2023-12-23 00:22:26,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:22:26,902 INFO L93 Difference]: Finished difference Result 416 states and 670 transitions. [2023-12-23 00:22:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-23 00:22:26,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (100), 3 states have call predecessors, (100), 5 states have return successors, (100), 4 states have call predecessors, (100), 4 states have call successors, (100) Word has length 304 [2023-12-23 00:22:26,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:22:26,908 INFO L225 Difference]: With dead ends: 416 [2023-12-23 00:22:26,909 INFO L226 Difference]: Without dead ends: 296 [2023-12-23 00:22:26,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 599 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-12-23 00:22:26,911 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 365 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-23 00:22:26,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 433 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-23 00:22:26,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-12-23 00:22:26,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 287. [2023-12-23 00:22:26,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 161 states have (on average 1.3726708074534162) internal successors, (221), 162 states have internal predecessors, (221), 121 states have call successors, (121), 4 states have call predecessors, (121), 4 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2023-12-23 00:22:26,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 463 transitions. [2023-12-23 00:22:26,964 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 463 transitions. Word has length 304 [2023-12-23 00:22:26,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:22:26,965 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 463 transitions. [2023-12-23 00:22:26,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (100), 3 states have call predecessors, (100), 5 states have return successors, (100), 4 states have call predecessors, (100), 4 states have call successors, (100) [2023-12-23 00:22:26,966 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 463 transitions. [2023-12-23 00:22:26,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-23 00:22:26,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:22:26,970 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:22:26,989 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 00:22:27,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:22:27,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:22:27,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:22:27,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2024556722, now seen corresponding path program 1 times [2023-12-23 00:22:27,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:22:27,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717497392] [2023-12-23 00:22:27,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:22:27,192 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 00:22:27,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:22:27,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 00:22:27,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 00:22:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:22:27,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 00:22:27,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:22:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2443 proven. 84 refuted. 0 times theorem prover too weak. 2373 trivial. 0 not checked. [2023-12-23 00:22:27,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 00:22:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 63 proven. 84 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2023-12-23 00:22:28,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:22:28,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717497392] [2023-12-23 00:22:28,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717497392] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 00:22:28,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 00:22:28,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-23 00:22:28,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446748861] [2023-12-23 00:22:28,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 00:22:28,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 00:22:28,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:22:28,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 00:22:28,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 00:22:28,221 INFO L87 Difference]: Start difference. First operand 287 states and 463 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 3 states have call successors, (78), 2 states have call predecessors, (78), 4 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2023-12-23 00:22:28,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:22:28,707 INFO L93 Difference]: Finished difference Result 418 states and 671 transitions. [2023-12-23 00:22:28,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-23 00:22:28,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 3 states have call successors, (78), 2 states have call predecessors, (78), 4 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) Word has length 305 [2023-12-23 00:22:28,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:22:28,711 INFO L225 Difference]: With dead ends: 418 [2023-12-23 00:22:28,711 INFO L226 Difference]: Without dead ends: 254 [2023-12-23 00:22:28,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-23 00:22:28,713 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 135 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-23 00:22:28,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 316 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-23 00:22:28,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-12-23 00:22:28,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 125. [2023-12-23 00:22:28,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 72 states have (on average 1.375) internal successors, (99), 72 states have internal predecessors, (99), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-23 00:22:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 199 transitions. [2023-12-23 00:22:28,738 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 199 transitions. Word has length 305 [2023-12-23 00:22:28,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:22:28,738 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 199 transitions. [2023-12-23 00:22:28,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 3 states have call successors, (78), 2 states have call predecessors, (78), 4 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2023-12-23 00:22:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 199 transitions. [2023-12-23 00:22:28,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-12-23 00:22:28,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:22:28,741 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:22:28,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-23 00:22:28,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:22:28,955 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:22:28,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:22:28,956 INFO L85 PathProgramCache]: Analyzing trace with hash -733829204, now seen corresponding path program 1 times [2023-12-23 00:22:28,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:22:28,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035211864] [2023-12-23 00:22:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:22:28,957 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 00:22:28,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:22:28,973 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 00:22:28,990 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 00:22:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:22:29,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 00:22:29,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:22:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2389 proven. 57 refuted. 0 times theorem prover too weak. 2454 trivial. 0 not checked. [2023-12-23 00:22:30,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 00:22:31,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 90 proven. 57 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2023-12-23 00:22:31,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:22:31,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035211864] [2023-12-23 00:22:31,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035211864] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 00:22:31,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 00:22:31,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2023-12-23 00:22:31,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464903990] [2023-12-23 00:22:31,043 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 00:22:31,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-23 00:22:31,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:22:31,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-23 00:22:31,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-23 00:22:31,045 INFO L87 Difference]: Start difference. First operand 125 states and 199 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2023-12-23 00:22:49,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:22:49,898 INFO L93 Difference]: Finished difference Result 742 states and 1146 transitions. [2023-12-23 00:22:49,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-23 00:22:49,900 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 306 [2023-12-23 00:22:49,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:22:49,904 INFO L225 Difference]: With dead ends: 742 [2023-12-23 00:22:49,904 INFO L226 Difference]: Without dead ends: 618 [2023-12-23 00:22:49,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 604 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=403, Invalid=929, Unknown=0, NotChecked=0, Total=1332 [2023-12-23 00:22:49,906 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 786 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-12-23 00:22:49,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 872 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2023-12-23 00:22:49,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2023-12-23 00:22:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 213. [2023-12-23 00:22:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 133 states have (on average 1.413533834586466) internal successors, (188), 134 states have internal predecessors, (188), 74 states have call successors, (74), 5 states have call predecessors, (74), 5 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-23 00:22:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 336 transitions. [2023-12-23 00:22:49,941 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 336 transitions. Word has length 306 [2023-12-23 00:22:49,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:22:49,942 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 336 transitions. [2023-12-23 00:22:49,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2023-12-23 00:22:49,942 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 336 transitions. [2023-12-23 00:22:49,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-12-23 00:22:49,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:22:49,946 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:22:49,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 00:22:50,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:22:50,161 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:22:50,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:22:50,161 INFO L85 PathProgramCache]: Analyzing trace with hash -671789590, now seen corresponding path program 1 times [2023-12-23 00:22:50,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:22:50,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716945461] [2023-12-23 00:22:50,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:22:50,162 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 00:22:50,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:22:50,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 00:22:50,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-23 00:22:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:22:50,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 00:22:50,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:22:55,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2389 proven. 57 refuted. 0 times theorem prover too weak. 2454 trivial. 0 not checked. [2023-12-23 00:22:55,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 00:23:07,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2023-12-23 00:23:07,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:23:07,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716945461] [2023-12-23 00:23:07,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716945461] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-23 00:23:07,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 00:23:07,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-23 00:23:07,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99051652] [2023-12-23 00:23:07,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:23:07,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 00:23:07,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:23:07,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 00:23:07,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-23 00:23:07,957 INFO L87 Difference]: Start difference. First operand 213 states and 336 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-23 00:23:18,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-23 00:23:22,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-23 00:23:23,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-23 00:23:27,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-23 00:23:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:23:35,188 INFO L93 Difference]: Finished difference Result 712 states and 1102 transitions. [2023-12-23 00:23:35,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 00:23:35,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 306 [2023-12-23 00:23:35,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:23:35,203 INFO L225 Difference]: With dead ends: 712 [2023-12-23 00:23:35,203 INFO L226 Difference]: Without dead ends: 500 [2023-12-23 00:23:35,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-23 00:23:35,204 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 369 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2023-12-23 00:23:35,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 580 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 27.1s Time] [2023-12-23 00:23:35,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-12-23 00:23:35,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 154. [2023-12-23 00:23:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 99 states have (on average 1.4242424242424243) internal successors, (141), 99 states have internal predecessors, (141), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-23 00:23:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 241 transitions. [2023-12-23 00:23:35,234 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 241 transitions. Word has length 306 [2023-12-23 00:23:35,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:23:35,234 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 241 transitions. [2023-12-23 00:23:35,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-23 00:23:35,235 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 241 transitions. [2023-12-23 00:23:35,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-12-23 00:23:35,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:23:35,237 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:23:35,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-23 00:23:35,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:23:35,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:23:35,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:23:35,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1692857944, now seen corresponding path program 1 times [2023-12-23 00:23:35,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:23:35,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159422382] [2023-12-23 00:23:35,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:23:35,452 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 00:23:35,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:23:35,453 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) [2023-12-23 00:23:35,454 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 [2023-12-23 00:23:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:23:35,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 00:23:35,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:23:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2023-12-23 00:23:35,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:23:35,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:23:35,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159422382] [2023-12-23 00:23:35,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159422382] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:23:35,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:23:35,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 00:23:35,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974954292] [2023-12-23 00:23:35,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:23:35,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 00:23:35,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:23:35,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 00:23:35,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 00:23:35,890 INFO L87 Difference]: Start difference. First operand 154 states and 241 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-23 00:23:36,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:23:36,632 INFO L93 Difference]: Finished difference Result 416 states and 642 transitions. [2023-12-23 00:23:36,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 00:23:36,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 306 [2023-12-23 00:23:36,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:23:36,635 INFO L225 Difference]: With dead ends: 416 [2023-12-23 00:23:36,635 INFO L226 Difference]: Without dead ends: 263 [2023-12-23 00:23:36,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 00:23:36,636 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 142 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-23 00:23:36,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 479 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-23 00:23:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-12-23 00:23:36,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 260. [2023-12-23 00:23:36,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 160 states have (on average 1.35) internal successors, (216), 161 states have internal predecessors, (216), 91 states have call successors, (91), 8 states have call predecessors, (91), 8 states have return successors, (91), 90 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-23 00:23:36,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 398 transitions. [2023-12-23 00:23:36,663 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 398 transitions. Word has length 306 [2023-12-23 00:23:36,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:23:36,664 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 398 transitions. [2023-12-23 00:23:36,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-23 00:23:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 398 transitions. [2023-12-23 00:23:36,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-12-23 00:23:36,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:23:36,666 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:23:36,682 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 [2023-12-23 00:23:36,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:23:36,877 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:23:36,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:23:36,877 INFO L85 PathProgramCache]: Analyzing trace with hash 913165610, now seen corresponding path program 1 times [2023-12-23 00:23:36,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:23:36,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548062742] [2023-12-23 00:23:36,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:23:36,878 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 00:23:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:23:36,884 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 00:23:36,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-23 00:23:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:23:37,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-23 00:23:37,325 INFO L285 TraceCheckSpWp]: Computing forward predicates...