/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_loopvsstraightlinecode_100-1loop_file-12.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 20:55:37,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 20:55:37,986 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 20:55:37,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 20:55:37,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 20:55:38,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 20:55:38,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 20:55:38,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 20:55:38,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 20:55:38,034 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 20:55:38,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 20:55:38,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 20:55:38,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 20:55:38,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 20:55:38,036 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 20:55:38,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 20:55:38,037 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 20:55:38,037 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 20:55:38,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 20:55:38,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 20:55:38,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 20:55:38,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 20:55:38,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 20:55:38,039 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 20:55:38,039 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 20:55:38,039 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 20:55:38,039 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 20:55:38,039 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 20:55:38,040 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 20:55:38,040 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 20:55:38,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 20:55:38,041 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 20:55:38,041 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 20:55:38,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 20:55:38,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 20:55:38,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 20:55:38,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 20:55:38,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 20:55:38,042 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 20:55:38,042 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 20:55:38,042 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 20:55:38,042 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 20:55:38,043 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 20:55:38,043 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 20:55:38,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 20:55:38,043 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 20:55:38,043 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 20:55:38,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 20:55:38,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 20:55:38,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 20:55:38,267 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 20:55:38,267 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 20:55:38,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-12.i [2023-12-23 20:55:39,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 20:55:39,633 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 20:55:39,634 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-12.i [2023-12-23 20:55:39,642 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c136859a7/14b2590d7a3544549d2b1e1209766df4/FLAG0c66a9da1 [2023-12-23 20:55:39,654 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c136859a7/14b2590d7a3544549d2b1e1209766df4 [2023-12-23 20:55:39,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 20:55:39,657 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 20:55:39,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 20:55:39,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 20:55:39,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 20:55:39,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:39,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a867901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39, skipping insertion in model container [2023-12-23 20:55:39,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:39,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 20:55:39,833 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_loopvsstraightlinecode_100-1loop_file-12.i[916,929] [2023-12-23 20:55:39,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 20:55:39,925 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 20:55:39,937 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_loopvsstraightlinecode_100-1loop_file-12.i[916,929] [2023-12-23 20:55:39,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 20:55:39,991 INFO L206 MainTranslator]: Completed translation [2023-12-23 20:55:39,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39 WrapperNode [2023-12-23 20:55:39,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 20:55:39,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 20:55:39,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 20:55:39,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 20:55:39,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,053 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 185 [2023-12-23 20:55:40,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 20:55:40,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 20:55:40,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 20:55:40,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 20:55:40,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,088 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 20:55:40,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,089 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 20:55:40,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 20:55:40,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 20:55:40,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 20:55:40,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (1/1) ... [2023-12-23 20:55:40,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 20:55:40,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 20:55:40,158 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 20:55:40,180 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 20:55:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 20:55:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 20:55:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 20:55:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 20:55:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 20:55:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 20:55:40,296 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 20:55:40,297 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 20:56:06,593 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 20:56:06,653 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 20:56:06,654 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 20:56:06,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:56:06 BoogieIcfgContainer [2023-12-23 20:56:06,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 20:56:06,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 20:56:06,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 20:56:06,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 20:56:06,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 08:55:39" (1/3) ... [2023-12-23 20:56:06,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5856cdd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:56:06, skipping insertion in model container [2023-12-23 20:56:06,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:55:39" (2/3) ... [2023-12-23 20:56:06,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5856cdd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:56:06, skipping insertion in model container [2023-12-23 20:56:06,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:56:06" (3/3) ... [2023-12-23 20:56:06,665 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-12.i [2023-12-23 20:56:06,681 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 20:56:06,681 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 20:56:06,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 20:56:06,727 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;@36f64d83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 20:56:06,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 20:56:06,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 46 states have (on average 1.565217391304348) internal successors, (72), 47 states have internal predecessors, (72), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-23 20:56:06,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-23 20:56:06,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 20:56:06,743 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:56:06,743 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 20:56:06,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 20:56:06,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1787954145, now seen corresponding path program 1 times [2023-12-23 20:56:06,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 20:56:06,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171026845] [2023-12-23 20:56:06,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 20:56:06,760 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 20:56:06,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 20:56:06,766 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 20:56:06,768 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 20:56:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 20:56:08,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 20:56:08,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 20:56:08,449 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2023-12-23 20:56:08,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 20:56:08,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 20:56:08,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171026845] [2023-12-23 20:56:08,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171026845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 20:56:08,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 20:56:08,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 20:56:08,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612579180] [2023-12-23 20:56:08,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 20:56:08,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 20:56:08,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 20:56:08,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 20:56:08,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 20:56:08,482 INFO L87 Difference]: Start difference. First operand has 70 states, 46 states have (on average 1.565217391304348) internal successors, (72), 47 states have internal predecessors, (72), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-23 20:56:14,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:56:15,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 20:56:15,501 INFO L93 Difference]: Finished difference Result 139 states and 248 transitions. [2023-12-23 20:56:15,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 20:56:15,504 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 135 [2023-12-23 20:56:15,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 20:56:15,510 INFO L225 Difference]: With dead ends: 139 [2023-12-23 20:56:15,511 INFO L226 Difference]: Without dead ends: 68 [2023-12-23 20:56:15,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 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 20:56:15,516 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-23 20:56:15,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2023-12-23 20:56:15,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-23 20:56:15,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-23 20:56:15,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 45 states have internal predecessors, (66), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-23 20:56:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 108 transitions. [2023-12-23 20:56:15,552 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 108 transitions. Word has length 135 [2023-12-23 20:56:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 20:56:15,552 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 108 transitions. [2023-12-23 20:56:15,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-23 20:56:15,553 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 108 transitions. [2023-12-23 20:56:15,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-23 20:56:15,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 20:56:15,556 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:56:15,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-23 20:56:15,760 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 20:56:15,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 20:56:15,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 20:56:15,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1973665692, now seen corresponding path program 1 times [2023-12-23 20:56:15,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 20:56:15,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042565721] [2023-12-23 20:56:15,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 20:56:15,763 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 20:56:15,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 20:56:15,764 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 20:56:15,768 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 20:56:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 20:56:17,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 20:56:17,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 20:56:35,905 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-23 20:56:35,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 20:56:35,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 20:56:35,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042565721] [2023-12-23 20:56:35,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042565721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 20:56:35,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 20:56:35,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 20:56:35,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974741788] [2023-12-23 20:56:35,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 20:56:35,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 20:56:35,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 20:56:35,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 20:56:35,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 20:56:35,909 INFO L87 Difference]: Start difference. First operand 68 states and 108 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 20:56:42,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:56:47,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:56:54,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:56:58,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:04,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:10,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:16,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:22,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:28,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:32,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:36,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:37,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 20:57:37,402 INFO L93 Difference]: Finished difference Result 209 states and 333 transitions. [2023-12-23 20:57:37,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 20:57:37,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 136 [2023-12-23 20:57:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 20:57:37,405 INFO L225 Difference]: With dead ends: 209 [2023-12-23 20:57:37,405 INFO L226 Difference]: Without dead ends: 142 [2023-12-23 20:57:37,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 20:57:37,407 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 102 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 43 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.1s IncrementalHoareTripleChecker+Time [2023-12-23 20:57:37,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 295 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 22 Invalid, 11 Unknown, 0 Unchecked, 61.1s Time] [2023-12-23 20:57:37,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-23 20:57:37,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 107. [2023-12-23 20:57:37,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 62 states have internal predecessors, (83), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-23 20:57:37,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 167 transitions. [2023-12-23 20:57:37,434 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 167 transitions. Word has length 136 [2023-12-23 20:57:37,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 20:57:37,434 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 167 transitions. [2023-12-23 20:57:37,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 20:57:37,435 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 167 transitions. [2023-12-23 20:57:37,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-23 20:57:37,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 20:57:37,440 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:57:37,481 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 20:57:37,656 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 20:57:37,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 20:57:37,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 20:57:37,657 INFO L85 PathProgramCache]: Analyzing trace with hash 732953702, now seen corresponding path program 1 times [2023-12-23 20:57:37,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 20:57:37,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929873475] [2023-12-23 20:57:37,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 20:57:37,658 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 20:57:37,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 20:57:37,660 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 20:57:37,661 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 20:57:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 20:57:39,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 20:57:39,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 20:57:39,571 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-23 20:57:39,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 20:57:39,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 20:57:39,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929873475] [2023-12-23 20:57:39,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929873475] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 20:57:39,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 20:57:39,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 20:57:39,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727980730] [2023-12-23 20:57:39,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 20:57:39,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 20:57:39,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 20:57:39,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 20:57:39,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 20:57:39,574 INFO L87 Difference]: Start difference. First operand 107 states and 167 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 20:57:45,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:49,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:54,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:57:54,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 20:57:54,860 INFO L93 Difference]: Finished difference Result 196 states and 310 transitions. [2023-12-23 20:57:54,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 20:57:54,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 136 [2023-12-23 20:57:54,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 20:57:54,867 INFO L225 Difference]: With dead ends: 196 [2023-12-23 20:57:54,867 INFO L226 Difference]: Without dead ends: 129 [2023-12-23 20:57:54,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 20:57:54,869 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 31 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-12-23 20:57:54,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 200 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2023-12-23 20:57:54,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-12-23 20:57:54,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 113. [2023-12-23 20:57:54,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 68 states have internal predecessors, (94), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-23 20:57:54,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 178 transitions. [2023-12-23 20:57:54,893 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 178 transitions. Word has length 136 [2023-12-23 20:57:54,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 20:57:54,894 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 178 transitions. [2023-12-23 20:57:54,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 20:57:54,894 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 178 transitions. [2023-12-23 20:57:54,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-23 20:57:54,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 20:57:54,896 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:57:54,931 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 (4)] Ended with exit code 0 [2023-12-23 20:57:55,099 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 20:57:55,100 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 20:57:55,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 20:57:55,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1413012072, now seen corresponding path program 1 times [2023-12-23 20:57:55,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 20:57:55,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871537577] [2023-12-23 20:57:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 20:57:55,101 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 20:57:55,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 20:57:55,104 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 20:57:55,105 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 20:57:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 20:57:56,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 20:57:56,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 20:57:57,193 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-23 20:57:57,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 20:57:57,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 20:57:57,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871537577] [2023-12-23 20:57:57,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871537577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 20:57:57,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 20:57:57,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 20:57:57,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279610338] [2023-12-23 20:57:57,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 20:57:57,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 20:57:57,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 20:57:57,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 20:57:57,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 20:57:57,196 INFO L87 Difference]: Start difference. First operand 113 states and 178 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 20:58:03,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:58:10,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:58:14,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 20:58:15,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 20:58:15,786 INFO L93 Difference]: Finished difference Result 219 states and 343 transitions. [2023-12-23 20:58:15,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 20:58:15,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 136 [2023-12-23 20:58:15,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 20:58:15,790 INFO L225 Difference]: With dead ends: 219 [2023-12-23 20:58:15,790 INFO L226 Difference]: Without dead ends: 146 [2023-12-23 20:58:15,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 20:58:15,792 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 38 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2023-12-23 20:58:15,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 201 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 3 Unknown, 0 Unchecked, 18.6s Time] [2023-12-23 20:58:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-12-23 20:58:15,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2023-12-23 20:58:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.2976190476190477) internal successors, (109), 85 states have internal predecessors, (109), 52 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-23 20:58:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 213 transitions. [2023-12-23 20:58:15,810 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 213 transitions. Word has length 136 [2023-12-23 20:58:15,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 20:58:15,811 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 213 transitions. [2023-12-23 20:58:15,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 20:58:15,811 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 213 transitions. [2023-12-23 20:58:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-23 20:58:15,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 20:58:15,813 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:58:15,850 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 20:58:16,020 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 20:58:16,021 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 20:58:16,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 20:58:16,021 INFO L85 PathProgramCache]: Analyzing trace with hash 827258518, now seen corresponding path program 1 times [2023-12-23 20:58:16,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 20:58:16,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332602225] [2023-12-23 20:58:16,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 20:58:16,022 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 20:58:16,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 20:58:16,023 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 20:58:16,024 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 20:58:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 20:58:17,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-23 20:58:17,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:00:18,201 WARN L293 SmtUtils]: Spent 14.81s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:01:19,775 WARN L293 SmtUtils]: Spent 17.13s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:02:23,336 WARN L293 SmtUtils]: Spent 17.77s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:03:29,889 WARN L293 SmtUtils]: Spent 17.28s on a formula simplification that was a NOOP. DAG size: 78 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:04:40,503 WARN L293 SmtUtils]: Spent 21.26s on a formula simplification that was a NOOP. DAG size: 80 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:06:33,249 WARN L293 SmtUtils]: Spent 25.42s on a formula simplification that was a NOOP. DAG size: 85 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:07:46,019 WARN L293 SmtUtils]: Spent 19.28s on a formula simplification that was a NOOP. DAG size: 87 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:10:06,574 WARN L293 SmtUtils]: Spent 34.23s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-23 21:10:11,094 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 21:10:11,095 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 21:10:12,179 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 21:10:12,316 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 21:10:12,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown