/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_operatoramount_amount100_file-36.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 07:56:04,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 07:56:04,071 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 07:56:04,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 07:56:04,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 07:56:04,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 07:56:04,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 07:56:04,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 07:56:04,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 07:56:04,105 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 07:56:04,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 07:56:04,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 07:56:04,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 07:56:04,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 07:56:04,107 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 07:56:04,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 07:56:04,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 07:56:04,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 07:56:04,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 07:56:04,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 07:56:04,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 07:56:04,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 07:56:04,109 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 07:56:04,109 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 07:56:04,109 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 07:56:04,109 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 07:56:04,109 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 07:56:04,109 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 07:56:04,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 07:56:04,110 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 07:56:04,110 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 07:56:04,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 07:56:04,110 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 07:56:04,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 07:56:04,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:56:04,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 07:56:04,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 07:56:04,111 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 07:56:04,111 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 07:56:04,111 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 07:56:04,111 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 07:56:04,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 07:56:04,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 07:56:04,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 07:56:04,114 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:56:04,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 07:56:04,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 07:56:04,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 07:56:04,341 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 07:56:04,342 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 07:56:04,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-36.i [2024-11-03 07:56:05,671 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 07:56:05,856 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 07:56:05,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-36.i [2024-11-03 07:56:05,863 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c9a7bad/70f544e5750b46ca8bc6a889bb0d9980/FLAG35479d47b [2024-11-03 07:56:06,238 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c9a7bad/70f544e5750b46ca8bc6a889bb0d9980 [2024-11-03 07:56:06,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 07:56:06,241 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 07:56:06,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 07:56:06,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 07:56:06,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 07:56:06,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed25096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06, skipping insertion in model container [2024-11-03 07:56:06,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 07:56:06,425 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_operatoramount_amount100_file-36.i[916,929] [2024-11-03 07:56:06,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:56:06,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 07:56:06,516 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_operatoramount_amount100_file-36.i[916,929] [2024-11-03 07:56:06,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:56:06,565 INFO L204 MainTranslator]: Completed translation [2024-11-03 07:56:06,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06 WrapperNode [2024-11-03 07:56:06,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 07:56:06,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 07:56:06,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 07:56:06,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 07:56:06,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,612 INFO L138 Inliner]: procedures = 27, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 201 [2024-11-03 07:56:06,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 07:56:06,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 07:56:06,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 07:56:06,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 07:56:06,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,631 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,649 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 07:56:06,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,669 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,676 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 07:56:06,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 07:56:06,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 07:56:06,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 07:56:06,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (1/1) ... [2024-11-03 07:56:06,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:56:06,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 07:56:06,707 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 07:56:06,709 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 07:56:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 07:56:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 07:56:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 07:56:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 07:56:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 07:56:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 07:56:06,807 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 07:56:06,808 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 07:56:11,030 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-03 07:56:11,030 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 07:56:11,043 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 07:56:11,044 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 07:56:11,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:56:11 BoogieIcfgContainer [2024-11-03 07:56:11,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 07:56:11,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 07:56:11,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 07:56:11,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 07:56:11,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 07:56:06" (1/3) ... [2024-11-03 07:56:11,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6285333c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:56:11, skipping insertion in model container [2024-11-03 07:56:11,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:56:06" (2/3) ... [2024-11-03 07:56:11,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6285333c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:56:11, skipping insertion in model container [2024-11-03 07:56:11,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:56:11" (3/3) ... [2024-11-03 07:56:11,054 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-36.i [2024-11-03 07:56:11,067 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 07:56:11,067 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 07:56:11,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 07:56:11,137 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;@6cdb8ef7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 07:56:11,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 07:56:11,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-03 07:56:11,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-03 07:56:11,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:56:11,157 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:11,158 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:56:11,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:56:11,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1568810157, now seen corresponding path program 1 times [2024-11-03 07:56:11,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:56:11,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724570367] [2024-11-03 07:56:11,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:56:11,172 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 07:56:11,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:56:11,180 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 07:56:11,181 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 07:56:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:56:11,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 07:56:11,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:56:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2024-11-03 07:56:11,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:56:12,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 8 proven. 46 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2024-11-03 07:56:12,088 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:56:12,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724570367] [2024-11-03 07:56:12,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1724570367] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 07:56:12,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 07:56:12,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 07:56:12,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835733903] [2024-11-03 07:56:12,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 07:56:12,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 07:56:12,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:56:12,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 07:56:12,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 07:56:12,108 INFO L87 Difference]: Start difference. First operand has 91 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-03 07:56:12,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:56:12,135 INFO L93 Difference]: Finished difference Result 175 states and 306 transitions. [2024-11-03 07:56:12,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 07:56:12,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 183 [2024-11-03 07:56:12,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:56:12,145 INFO L225 Difference]: With dead ends: 175 [2024-11-03 07:56:12,145 INFO L226 Difference]: Without dead ends: 87 [2024-11-03 07:56:12,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 364 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 07:56:12,150 INFO L432 NwaCegarLoop]: 135 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, 135 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 07:56:12,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:56:12,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-03 07:56:12,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-03 07:56:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 57 states have internal predecessors, (79), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-03 07:56:12,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 135 transitions. [2024-11-03 07:56:12,188 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 135 transitions. Word has length 183 [2024-11-03 07:56:12,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:56:12,188 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 135 transitions. [2024-11-03 07:56:12,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-03 07:56:12,189 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 135 transitions. [2024-11-03 07:56:12,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-03 07:56:12,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:56:12,192 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:12,204 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 07:56:12,393 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 07:56:12,393 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:56:12,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:56:12,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1525949237, now seen corresponding path program 1 times [2024-11-03 07:56:12,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:56:12,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462127695] [2024-11-03 07:56:12,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:56:12,395 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 07:56:12,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:56:12,397 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 07:56:12,399 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 07:56:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:56:12,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 07:56:12,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:56:12,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-03 07:56:12,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:56:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-03 07:56:13,553 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:56:13,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462127695] [2024-11-03 07:56:13,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [462127695] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:56:13,554 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:56:13,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2024-11-03 07:56:13,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728735369] [2024-11-03 07:56:13,554 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:56:13,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-03 07:56:13,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:56:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-03 07:56:13,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-03 07:56:13,557 INFO L87 Difference]: Start difference. First operand 87 states and 135 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-03 07:56:17,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:19,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:24,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:56:24,693 INFO L93 Difference]: Finished difference Result 255 states and 399 transitions. [2024-11-03 07:56:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 07:56:24,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2024-11-03 07:56:24,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:56:24,696 INFO L225 Difference]: With dead ends: 255 [2024-11-03 07:56:24,696 INFO L226 Difference]: Without dead ends: 171 [2024-11-03 07:56:24,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-03 07:56:24,698 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 115 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-03 07:56:24,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 478 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2024-11-03 07:56:24,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-03 07:56:24,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 87. [2024-11-03 07:56:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 57 states have (on average 1.368421052631579) internal successors, (78), 57 states have internal predecessors, (78), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-03 07:56:24,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 134 transitions. [2024-11-03 07:56:24,711 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 134 transitions. Word has length 183 [2024-11-03 07:56:24,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:56:24,712 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 134 transitions. [2024-11-03 07:56:24,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-03 07:56:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 134 transitions. [2024-11-03 07:56:24,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-03 07:56:24,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:56:24,715 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:24,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-03 07:56:24,919 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 07:56:24,920 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:56:24,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:56:24,921 INFO L85 PathProgramCache]: Analyzing trace with hash 113287978, now seen corresponding path program 1 times [2024-11-03 07:56:24,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:56:24,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972828296] [2024-11-03 07:56:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:56:24,921 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 07:56:24,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:56:24,924 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 07:56:24,925 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 07:56:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:56:25,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 07:56:25,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:56:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2024-11-03 07:56:25,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:56:26,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2024-11-03 07:56:26,809 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:56:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972828296] [2024-11-03 07:56:26,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [972828296] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:56:26,809 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:56:26,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2024-11-03 07:56:26,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017696232] [2024-11-03 07:56:26,810 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:56:26,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 07:56:26,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:56:26,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 07:56:26,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 07:56:26,817 INFO L87 Difference]: Start difference. First operand 87 states and 134 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-03 07:56:31,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:35,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:35,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:56:35,574 INFO L93 Difference]: Finished difference Result 178 states and 270 transitions. [2024-11-03 07:56:35,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 07:56:35,613 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 184 [2024-11-03 07:56:35,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:56:35,615 INFO L225 Difference]: With dead ends: 178 [2024-11-03 07:56:35,615 INFO L226 Difference]: Without dead ends: 94 [2024-11-03 07:56:35,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 360 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-03 07:56:35,617 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 248 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 217 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-03 07:56:35,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 224 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2024-11-03 07:56:35,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-03 07:56:35,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-11-03 07:56:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.305084745762712) internal successors, (77), 59 states have internal predecessors, (77), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-03 07:56:35,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 133 transitions. [2024-11-03 07:56:35,636 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 133 transitions. Word has length 184 [2024-11-03 07:56:35,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:56:35,637 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 133 transitions. [2024-11-03 07:56:35,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-03 07:56:35,637 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 133 transitions. [2024-11-03 07:56:35,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-03 07:56:35,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:56:35,639 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:35,651 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 07:56:35,843 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 07:56:35,844 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:56:35,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:56:35,844 INFO L85 PathProgramCache]: Analyzing trace with hash 115135020, now seen corresponding path program 1 times [2024-11-03 07:56:35,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:56:35,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654743677] [2024-11-03 07:56:35,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:56:35,845 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 07:56:35,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:56:35,848 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 07:56:35,849 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 07:56:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:56:36,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 07:56:36,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:56:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 352 proven. 141 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2024-11-03 07:56:44,907 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:57:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 15 proven. 144 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2024-11-03 07:57:33,794 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:57:33,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654743677] [2024-11-03 07:57:33,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [654743677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:57:33,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:57:33,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-03 07:57:33,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619244211] [2024-11-03 07:57:33,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:57:33,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-03 07:57:33,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:57:33,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-03 07:57:33,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-03 07:57:33,796 INFO L87 Difference]: Start difference. First operand 90 states and 133 transitions. Second operand has 15 states, 15 states have (on average 6.066666666666666) internal successors, (91), 15 states have internal predecessors, (91), 6 states have call successors, (56), 4 states have call predecessors, (56), 8 states have return successors, (56), 6 states have call predecessors, (56), 6 states have call successors, (56) [2024-11-03 07:57:45,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:57:47,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:57:47,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:57:47,636 INFO L93 Difference]: Finished difference Result 189 states and 273 transitions. [2024-11-03 07:57:47,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 07:57:47,678 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.066666666666666) internal successors, (91), 15 states have internal predecessors, (91), 6 states have call successors, (56), 4 states have call predecessors, (56), 8 states have return successors, (56), 6 states have call predecessors, (56), 6 states have call successors, (56) Word has length 184 [2024-11-03 07:57:47,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:57:47,681 INFO L225 Difference]: With dead ends: 189 [2024-11-03 07:57:47,681 INFO L226 Difference]: Without dead ends: 102 [2024-11-03 07:57:47,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 352 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=137, Invalid=243, Unknown=0, NotChecked=0, Total=380 [2024-11-03 07:57:47,684 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 209 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-03 07:57:47,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 224 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 175 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2024-11-03 07:57:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-03 07:57:47,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2024-11-03 07:57:47,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 65 states have internal predecessors, (81), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-03 07:57:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2024-11-03 07:57:47,694 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 184 [2024-11-03 07:57:47,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:57:47,694 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2024-11-03 07:57:47,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.066666666666666) internal successors, (91), 15 states have internal predecessors, (91), 6 states have call successors, (56), 4 states have call predecessors, (56), 8 states have return successors, (56), 6 states have call predecessors, (56), 6 states have call successors, (56) [2024-11-03 07:57:47,695 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2024-11-03 07:57:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-03 07:57:47,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:57:47,696 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:57:47,714 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 (5)] Ended with exit code 0 [2024-11-03 07:57:47,900 WARN L453 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 [2024-11-03 07:57:47,901 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:57:47,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:57:47,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1703227471, now seen corresponding path program 1 times [2024-11-03 07:57:47,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:57:47,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040858461] [2024-11-03 07:57:47,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:57:47,902 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 07:57:47,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:57:47,903 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) [2024-11-03 07:57:47,905 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 [2024-11-03 07:57:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:57:48,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 07:57:48,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:57:50,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-03 07:57:50,520 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:57:51,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-03 07:57:51,109 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:57:51,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040858461] [2024-11-03 07:57:51,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1040858461] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:57:51,109 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:57:51,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-03 07:57:51,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353811386] [2024-11-03 07:57:51,109 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:57:51,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 07:57:51,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:57:51,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 07:57:51,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 07:57:51,111 INFO L87 Difference]: Start difference. First operand 98 states and 137 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56)