/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-7.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 19:07:18,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 19:07:18,650 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 19:07:18,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 19:07:18,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 19:07:18,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 19:07:18,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 19:07:18,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 19:07:18,685 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 19:07:18,686 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 19:07:18,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 19:07:18,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 19:07:18,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 19:07:18,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 19:07:18,690 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 19:07:18,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 19:07:18,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 19:07:18,691 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 19:07:18,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 19:07:18,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 19:07:18,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 19:07:18,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 19:07:18,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 19:07:18,693 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 19:07:18,693 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 19:07:18,693 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 19:07:18,694 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 19:07:18,694 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 19:07:18,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 19:07:18,695 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 19:07:18,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 19:07:18,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 19:07:18,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 19:07:18,696 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 19:07:18,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:07:18,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 19:07:18,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 19:07:18,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 19:07:18,697 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 19:07:18,697 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 19:07:18,697 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 19:07:18,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 19:07:18,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 19:07:18,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 19:07:18,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:07:18,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 19:07:18,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 19:07:18,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 19:07:18,949 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 19:07:18,949 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 19:07:18,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-7.i [2024-11-05 19:07:20,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 19:07:20,614 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 19:07:20,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-7.i [2024-11-05 19:07:20,622 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2770158c8/dff34bd865724e609a391a9d7db89c46/FLAG5fec91b7a [2024-11-05 19:07:20,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2770158c8/dff34bd865724e609a391a9d7db89c46 [2024-11-05 19:07:20,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 19:07:20,642 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 19:07:20,643 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 19:07:20,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 19:07:20,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 19:07:20,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:20,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ce1e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20, skipping insertion in model container [2024-11-05 19:07:20,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:20,677 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 19:07:20,838 WARN L250 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_floatingpointinfluence_has-floats_file-7.i[916,929] [2024-11-05 19:07:20,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:07:20,907 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 19:07:20,920 WARN L250 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_floatingpointinfluence_has-floats_file-7.i[916,929] [2024-11-05 19:07:20,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:07:20,959 INFO L204 MainTranslator]: Completed translation [2024-11-05 19:07:20,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20 WrapperNode [2024-11-05 19:07:20,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 19:07:20,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 19:07:20,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 19:07:20,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 19:07:20,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:20,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,000 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97 [2024-11-05 19:07:21,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 19:07:21,001 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 19:07:21,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 19:07:21,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 19:07:21,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,015 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,027 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]. [2024-11-05 19:07:21,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,042 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,044 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 19:07:21,045 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 19:07:21,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 19:07:21,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 19:07:21,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (1/1) ... [2024-11-05 19:07:21,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:07:21,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 19:07:21,076 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) [2024-11-05 19:07:21,078 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 [2024-11-05 19:07:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 19:07:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 19:07:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 19:07:21,106 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 19:07:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 19:07:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 19:07:21,200 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 19:07:21,202 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 19:07:22,190 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-05 19:07:22,191 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 19:07:22,201 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 19:07:22,202 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 19:07:22,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:07:22 BoogieIcfgContainer [2024-11-05 19:07:22,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 19:07:22,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 19:07:22,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 19:07:22,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 19:07:22,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:07:20" (1/3) ... [2024-11-05 19:07:22,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0884c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:07:22, skipping insertion in model container [2024-11-05 19:07:22,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:07:20" (2/3) ... [2024-11-05 19:07:22,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0884c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:07:22, skipping insertion in model container [2024-11-05 19:07:22,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:07:22" (3/3) ... [2024-11-05 19:07:22,211 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-7.i [2024-11-05 19:07:22,230 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 19:07:22,230 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 19:07:22,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 19:07:22,291 INFO L333 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, 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;@6f9884fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 19:07:22,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 19:07:22,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-05 19:07:22,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-05 19:07:22,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:07:22,304 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:07:22,304 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:07:22,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:07:22,308 INFO L85 PathProgramCache]: Analyzing trace with hash 533118968, now seen corresponding path program 1 times [2024-11-05 19:07:22,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:07:22,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207220614] [2024-11-05 19:07:22,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:07:22,316 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 [2024-11-05 19:07:22,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:07:22,318 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) [2024-11-05 19:07:22,319 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 [2024-11-05 19:07:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:07:22,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 19:07:22,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:07:22,595 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-05 19:07:22,596 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:07:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-05 19:07:22,678 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:07:22,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207220614] [2024-11-05 19:07:22,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1207220614] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 19:07:22,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 19:07:22,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 19:07:22,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541669498] [2024-11-05 19:07:22,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 19:07:22,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 19:07:22,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:07:22,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 19:07:22,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:07:22,713 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-05 19:07:22,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:07:22,733 INFO L93 Difference]: Finished difference Result 83 states and 138 transitions. [2024-11-05 19:07:22,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 19:07:22,735 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2024-11-05 19:07:22,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:07:22,741 INFO L225 Difference]: With dead ends: 83 [2024-11-05 19:07:22,741 INFO L226 Difference]: Without dead ends: 41 [2024-11-05 19:07:22,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:07:22,747 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 19:07:22,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 19:07:22,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-05 19:07:22,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-05 19:07:22,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-05 19:07:22,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2024-11-05 19:07:22,786 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 79 [2024-11-05 19:07:22,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:07:22,786 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2024-11-05 19:07:22,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-05 19:07:22,787 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2024-11-05 19:07:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-05 19:07:22,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:07:22,792 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:07:22,807 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 [2024-11-05 19:07:22,992 WARN L453 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 [2024-11-05 19:07:22,993 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:07:22,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:07:22,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1417074868, now seen corresponding path program 1 times [2024-11-05 19:07:22,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:07:22,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543321607] [2024-11-05 19:07:22,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:07:22,995 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 [2024-11-05 19:07:22,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:07:23,001 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) [2024-11-05 19:07:23,002 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 [2024-11-05 19:07:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:07:23,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-05 19:07:23,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:07:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-05 19:07:29,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:07:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-05 19:07:49,653 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:07:49,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543321607] [2024-11-05 19:07:49,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [543321607] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 19:07:49,654 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 19:07:49,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2024-11-05 19:07:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856641293] [2024-11-05 19:07:49,654 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 19:07:49,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-05 19:07:49,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:07:49,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-05 19:07:49,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-05 19:07:49,658 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 19 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 19 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-05 19:08:30,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:08:30,554 INFO L93 Difference]: Finished difference Result 124 states and 163 transitions. [2024-11-05 19:08:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-05 19:08:30,569 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 19 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) Word has length 79 [2024-11-05 19:08:30,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:08:30,571 INFO L225 Difference]: With dead ends: 124 [2024-11-05 19:08:30,571 INFO L226 Difference]: Without dead ends: 86 [2024-11-05 19:08:30,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 37.9s TimeCoverageRelationStatistics Valid=299, Invalid=823, Unknown=0, NotChecked=0, Total=1122 [2024-11-05 19:08:30,574 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 187 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2024-11-05 19:08:30,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 239 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2024-11-05 19:08:30,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-05 19:08:30,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 58. [2024-11-05 19:08:30,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 40 states have (on average 1.175) internal successors, (47), 41 states have internal predecessors, (47), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-05 19:08:30,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 75 transitions. [2024-11-05 19:08:30,589 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 75 transitions. Word has length 79 [2024-11-05 19:08:30,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:08:30,590 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 75 transitions. [2024-11-05 19:08:30,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 19 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-05 19:08:30,591 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2024-11-05 19:08:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-05 19:08:30,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:08:30,593 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:08:30,604 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 (3)] Ended with exit code 0 [2024-11-05 19:08:30,793 WARN L453 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 [2024-11-05 19:08:30,794 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:08:30,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:08:30,795 INFO L85 PathProgramCache]: Analyzing trace with hash -155695824, now seen corresponding path program 1 times [2024-11-05 19:08:30,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:08:30,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107273381] [2024-11-05 19:08:30,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:08:30,795 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 [2024-11-05 19:08:30,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:08:30,799 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) [2024-11-05 19:08:30,800 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 [2024-11-05 19:08:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:08:30,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-05 19:08:31,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:08:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-05 19:08:37,322 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:08:49,546 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-05 19:08:49,546 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:08:49,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107273381] [2024-11-05 19:08:49,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2107273381] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 19:08:49,547 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 19:08:49,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2024-11-05 19:08:49,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94119528] [2024-11-05 19:08:49,547 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 19:08:49,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-05 19:08:49,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:08:49,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-05 19:08:49,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-05 19:08:49,550 INFO L87 Difference]: Start difference. First operand 58 states and 75 transitions. Second operand has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24)