/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-6.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 07:37:38,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 07:37:39,025 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 07:37:39,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 07:37:39,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 07:37:39,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 07:37:39,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 07:37:39,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 07:37:39,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 07:37:39,056 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 07:37:39,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 07:37:39,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 07:37:39,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 07:37:39,057 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 07:37:39,057 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 07:37:39,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 07:37:39,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 07:37:39,058 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 07:37:39,058 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 07:37:39,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 07:37:39,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 07:37:39,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 07:37:39,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 07:37:39,061 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 07:37:39,061 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 07:37:39,061 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 07:37:39,061 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 07:37:39,061 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 07:37:39,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 07:37:39,062 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 07:37:39,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 07:37:39,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 07:37:39,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 07:37:39,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 07:37:39,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:37:39,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 07:37:39,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 07:37:39,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 07:37:39,063 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 07:37:39,063 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 07:37:39,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 07:37:39,064 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 07:37:39,064 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 07:37:39,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 07:37:39,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:37:39,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 07:37:39,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 07:37:39,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 07:37:39,278 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 07:37:39,278 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 07:37:39,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-6.i [2024-11-03 07:37:40,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 07:37:40,772 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 07:37:40,774 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-6.i [2024-11-03 07:37:40,782 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5edc52ff8/d9205bc1ae2644a4ad2dc85892e74dcf/FLAGdf98d1a49 [2024-11-03 07:37:41,189 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5edc52ff8/d9205bc1ae2644a4ad2dc85892e74dcf [2024-11-03 07:37:41,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 07:37:41,192 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 07:37:41,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 07:37:41,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 07:37:41,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 07:37:41,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,198 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30afc1ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41, skipping insertion in model container [2024-11-03 07:37:41,199 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,218 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 07:37:41,340 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-6.i[916,929] [2024-11-03 07:37:41,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:37:41,398 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 07:37:41,407 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-6.i[916,929] [2024-11-03 07:37:41,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:37:41,447 INFO L204 MainTranslator]: Completed translation [2024-11-03 07:37:41,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41 WrapperNode [2024-11-03 07:37:41,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 07:37:41,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 07:37:41,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 07:37:41,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 07:37:41,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,489 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2024-11-03 07:37:41,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 07:37:41,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 07:37:41,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 07:37:41,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 07:37:41,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,503 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,516 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]. [2024-11-03 07:37:41,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 07:37:41,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 07:37:41,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 07:37:41,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 07:37:41,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (1/1) ... [2024-11-03 07:37:41,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:37:41,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 07:37:41,586 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) [2024-11-03 07:37:41,589 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 [2024-11-03 07:37:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 07:37:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 07:37:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 07:37:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 07:37:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 07:37:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 07:37:41,706 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 07:37:41,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 07:37:43,749 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-03 07:37:43,749 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 07:37:43,758 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 07:37:43,759 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 07:37:43,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:37:43 BoogieIcfgContainer [2024-11-03 07:37:43,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 07:37:43,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 07:37:43,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 07:37:43,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 07:37:43,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 07:37:41" (1/3) ... [2024-11-03 07:37:43,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d17eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:37:43, skipping insertion in model container [2024-11-03 07:37:43,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:37:41" (2/3) ... [2024-11-03 07:37:43,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d17eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:37:43, skipping insertion in model container [2024-11-03 07:37:43,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:37:43" (3/3) ... [2024-11-03 07:37:43,765 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-6.i [2024-11-03 07:37:43,778 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 07:37:43,778 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 07:37:43,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 07:37:43,826 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;@21a75bab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 07:37:43,827 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 07:37:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-03 07:37:43,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-03 07:37:43,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:37:43,839 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:37:43,839 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:37:43,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:37:43,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1544026128, now seen corresponding path program 1 times [2024-11-03 07:37:43,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:37:43,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409366310] [2024-11-03 07:37:43,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:37:43,851 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 [2024-11-03 07:37:43,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:37:43,854 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) [2024-11-03 07:37:43,855 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 [2024-11-03 07:37:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:37:44,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 07:37:44,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:37:44,184 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-03 07:37:44,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:37:44,350 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-03 07:37:44,351 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:37:44,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409366310] [2024-11-03 07:37:44,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1409366310] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 07:37:44,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 07:37:44,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 07:37:44,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283657240] [2024-11-03 07:37:44,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 07:37:44,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 07:37:44,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:37:44,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 07:37:44,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 07:37:44,421 INFO L87 Difference]: Start difference. First operand has 56 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-03 07:37:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:37:44,445 INFO L93 Difference]: Finished difference Result 105 states and 179 transitions. [2024-11-03 07:37:44,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 07:37:44,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2024-11-03 07:37:44,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:37:44,452 INFO L225 Difference]: With dead ends: 105 [2024-11-03 07:37:44,452 INFO L226 Difference]: Without dead ends: 52 [2024-11-03 07:37:44,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 07:37:44,457 INFO L432 NwaCegarLoop]: 76 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, 76 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 [2024-11-03 07:37:44,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:37:44,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-03 07:37:44,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-03 07:37:44,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-03 07:37:44,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 76 transitions. [2024-11-03 07:37:44,488 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 76 transitions. Word has length 120 [2024-11-03 07:37:44,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:37:44,488 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 76 transitions. [2024-11-03 07:37:44,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-03 07:37:44,489 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions. [2024-11-03 07:37:44,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-03 07:37:44,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:37:44,491 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:37:44,501 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 [2024-11-03 07:37:44,695 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 [2024-11-03 07:37:44,696 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:37:44,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:37:44,697 INFO L85 PathProgramCache]: Analyzing trace with hash 555848794, now seen corresponding path program 1 times [2024-11-03 07:37:44,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:37:44,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037856232] [2024-11-03 07:37:44,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:37:44,698 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 [2024-11-03 07:37:44,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:37:44,703 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) [2024-11-03 07:37:44,708 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 [2024-11-03 07:37:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:37:44,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 07:37:44,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:37:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-03 07:37:45,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:37:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-03 07:37:45,160 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:37:45,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037856232] [2024-11-03 07:37:45,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2037856232] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:37:45,161 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:37:45,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 07:37:45,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525019049] [2024-11-03 07:37:45,161 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:37:45,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 07:37:45,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:37:45,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 07:37:45,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:37:45,164 INFO L87 Difference]: Start difference. First operand 52 states and 76 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-03 07:37:46,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:37:47,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:37:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:37:48,011 INFO L93 Difference]: Finished difference Result 170 states and 245 transitions. [2024-11-03 07:37:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 07:37:48,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 120 [2024-11-03 07:37:48,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:37:48,015 INFO L225 Difference]: With dead ends: 170 [2024-11-03 07:37:48,015 INFO L226 Difference]: Without dead ends: 121 [2024-11-03 07:37:48,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:37:48,017 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 118 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-03 07:37:48,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 198 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-03 07:37:48,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-03 07:37:48,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 84. [2024-11-03 07:37:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 52 states have internal predecessors, (62), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-03 07:37:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 122 transitions. [2024-11-03 07:37:48,032 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 122 transitions. Word has length 120 [2024-11-03 07:37:48,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:37:48,032 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 122 transitions. [2024-11-03 07:37:48,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-03 07:37:48,033 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 122 transitions. [2024-11-03 07:37:48,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-03 07:37:48,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:37:48,034 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:37:48,045 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 [2024-11-03 07:37:48,238 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 [2024-11-03 07:37:48,239 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:37:48,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:37:48,239 INFO L85 PathProgramCache]: Analyzing trace with hash -253497832, now seen corresponding path program 1 times [2024-11-03 07:37:48,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:37:48,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167553490] [2024-11-03 07:37:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:37:48,240 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 [2024-11-03 07:37:48,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:37:48,243 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) [2024-11-03 07:37:48,244 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 [2024-11-03 07:37:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:37:48,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 07:37:48,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:37:48,721 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-03 07:37:48,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:37:48,878 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-03 07:37:48,878 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:37:48,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167553490] [2024-11-03 07:37:48,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [167553490] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:37:48,879 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:37:48,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4 [2024-11-03 07:37:48,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913884893] [2024-11-03 07:37:48,879 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:37:48,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 07:37:48,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:37:48,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 07:37:48,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:37:48,881 INFO L87 Difference]: Start difference. First operand 84 states and 122 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2024-11-03 07:37:50,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:37:50,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:37:50,023 INFO L93 Difference]: Finished difference Result 165 states and 241 transitions. [2024-11-03 07:37:50,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 07:37:50,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 120 [2024-11-03 07:37:50,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:37:50,050 INFO L225 Difference]: With dead ends: 165 [2024-11-03 07:37:50,050 INFO L226 Difference]: Without dead ends: 84 [2024-11-03 07:37:50,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-03 07:37:50,052 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-03 07:37:50,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 72 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-03 07:37:50,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-03 07:37:50,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-03 07:37:50,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 52 states have internal predecessors, (60), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-03 07:37:50,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2024-11-03 07:37:50,072 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 120 [2024-11-03 07:37:50,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:37:50,073 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2024-11-03 07:37:50,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2024-11-03 07:37:50,073 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2024-11-03 07:37:50,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-03 07:37:50,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:37:50,080 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:37:50,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-03 07:37:50,281 WARN L453 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 [2024-11-03 07:37:50,281 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:37:50,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:37:50,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1521509530, now seen corresponding path program 1 times [2024-11-03 07:37:50,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:37:50,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17898394] [2024-11-03 07:37:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:37:50,282 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 [2024-11-03 07:37:50,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:37:50,290 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) [2024-11-03 07:37:50,292 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 [2024-11-03 07:37:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:37:50,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-03 07:37:50,549 INFO L278 TraceCheckSpWp]: Computing forward predicates...