/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-54.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 07:58:33,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 07:58:33,703 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 07:58:33,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 07:58:33,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 07:58:33,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 07:58:33,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 07:58:33,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 07:58:33,735 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 07:58:33,735 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 07:58:33,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 07:58:33,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 07:58:33,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 07:58:33,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 07:58:33,736 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 07:58:33,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 07:58:33,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 07:58:33,737 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 07:58:33,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 07:58:33,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 07:58:33,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 07:58:33,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 07:58:33,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 07:58:33,741 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 07:58:33,741 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 07:58:33,741 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 07:58:33,742 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 07:58:33,742 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 07:58:33,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 07:58:33,742 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 07:58:33,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 07:58:33,743 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 07:58:33,743 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 07:58:33,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 07:58:33,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:58:33,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 07:58:33,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 07:58:33,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 07:58:33,748 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 07:58:33,748 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 07:58:33,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 07:58:33,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 07:58:33,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 07:58:33,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 07:58:33,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:58:33,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 07:58:34,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 07:58:34,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 07:58:34,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 07:58:34,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 07:58:34,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-54.i [2024-11-03 07:58:35,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 07:58:35,726 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 07:58:35,726 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-54.i [2024-11-03 07:58:35,740 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/053e8dfed/d64b3826bd524e7ba05fbd99b9698968/FLAGccb49489e [2024-11-03 07:58:36,103 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/053e8dfed/d64b3826bd524e7ba05fbd99b9698968 [2024-11-03 07:58:36,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 07:58:36,107 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 07:58:36,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 07:58:36,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 07:58:36,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 07:58:36,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597c6717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36, skipping insertion in model container [2024-11-03 07:58:36,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,152 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 07:58:36,325 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-54.i[916,929] [2024-11-03 07:58:36,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:58:36,436 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 07:58:36,446 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-54.i[916,929] [2024-11-03 07:58:36,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:58:36,535 INFO L204 MainTranslator]: Completed translation [2024-11-03 07:58:36,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36 WrapperNode [2024-11-03 07:58:36,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 07:58:36,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 07:58:36,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 07:58:36,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 07:58:36,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,594 INFO L138 Inliner]: procedures = 27, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 246 [2024-11-03 07:58:36,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 07:58:36,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 07:58:36,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 07:58:36,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 07:58:36,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,634 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 07:58:36,635 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,635 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 07:58:36,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 07:58:36,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 07:58:36,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 07:58:36,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (1/1) ... [2024-11-03 07:58:36,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:58:36,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 07:58:36,706 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 07:58:36,709 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 07:58:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 07:58:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 07:58:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 07:58:36,737 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 07:58:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 07:58:36,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 07:58:36,848 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 07:58:36,850 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 07:58:38,193 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-03 07:58:38,193 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 07:58:38,207 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 07:58:38,208 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 07:58:38,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:58:38 BoogieIcfgContainer [2024-11-03 07:58:38,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 07:58:38,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 07:58:38,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 07:58:38,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 07:58:38,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 07:58:36" (1/3) ... [2024-11-03 07:58:38,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794d25cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:58:38, skipping insertion in model container [2024-11-03 07:58:38,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:58:36" (2/3) ... [2024-11-03 07:58:38,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794d25cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:58:38, skipping insertion in model container [2024-11-03 07:58:38,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:58:38" (3/3) ... [2024-11-03 07:58:38,218 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-54.i [2024-11-03 07:58:38,232 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 07:58:38,233 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 07:58:38,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 07:58:38,295 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;@3e0a75a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 07:58:38,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 07:58:38,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 66 states have (on average 1.393939393939394) internal successors, (92), 67 states have internal predecessors, (92), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-03 07:58:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-03 07:58:38,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:58:38,321 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:58:38,322 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:58:38,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:58:38,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1763384431, now seen corresponding path program 1 times [2024-11-03 07:58:38,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:58:38,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209757177] [2024-11-03 07:58:38,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:58:38,338 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 07:58:38,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:58:38,341 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 07:58:38,344 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 07:58:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:58:38,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 07:58:38,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:58:38,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-03 07:58:38,966 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:58:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-03 07:58:39,314 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:58:39,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209757177] [2024-11-03 07:58:39,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [209757177] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:58:39,315 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:58:39,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 07:58:39,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815597686] [2024-11-03 07:58:39,318 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:58:39,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 07:58:39,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:58:39,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 07:58:39,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 07:58:39,359 INFO L87 Difference]: Start difference. First operand has 113 states, 66 states have (on average 1.393939393939394) internal successors, (92), 67 states have internal predecessors, (92), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-03 07:58:39,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:58:39,403 INFO L93 Difference]: Finished difference Result 219 states and 398 transitions. [2024-11-03 07:58:39,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 07:58:39,406 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 269 [2024-11-03 07:58:39,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:58:39,423 INFO L225 Difference]: With dead ends: 219 [2024-11-03 07:58:39,423 INFO L226 Difference]: Without dead ends: 109 [2024-11-03 07:58:39,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 536 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 07:58:39,432 INFO L432 NwaCegarLoop]: 172 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, 172 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 07:58:39,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:58:39,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-03 07:58:39,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-03 07:58:39,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 63 states have internal predecessors, (84), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-03 07:58:39,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 172 transitions. [2024-11-03 07:58:39,490 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 172 transitions. Word has length 269 [2024-11-03 07:58:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:58:39,494 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 172 transitions. [2024-11-03 07:58:39,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-03 07:58:39,494 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 172 transitions. [2024-11-03 07:58:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-03 07:58:39,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:58:39,501 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:58:39,517 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 07:58:39,702 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 07:58:39,703 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:58:39,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:58:39,704 INFO L85 PathProgramCache]: Analyzing trace with hash 935944368, now seen corresponding path program 1 times [2024-11-03 07:58:39,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:58:39,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104707579] [2024-11-03 07:58:39,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:58:39,704 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 07:58:39,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:58:39,707 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 07:58:39,708 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 07:58:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:58:40,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 07:58:40,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:58:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1929 proven. 60 refuted. 0 times theorem prover too weak. 1795 trivial. 0 not checked. [2024-11-03 07:58:40,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:58:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 69 proven. 60 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2024-11-03 07:58:40,977 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:58:40,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104707579] [2024-11-03 07:58:40,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1104707579] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:58:40,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:58:40,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-11-03 07:58:40,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721010589] [2024-11-03 07:58:40,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:58:40,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 07:58:40,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:58:40,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 07:58:40,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 07:58:40,984 INFO L87 Difference]: Start difference. First operand 109 states and 172 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-11-03 07:58:42,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:58:42,488 INFO L93 Difference]: Finished difference Result 223 states and 348 transitions. [2024-11-03 07:58:42,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 07:58:42,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 270 [2024-11-03 07:58:42,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:58:42,506 INFO L225 Difference]: With dead ends: 223 [2024-11-03 07:58:42,506 INFO L226 Difference]: Without dead ends: 117 [2024-11-03 07:58:42,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 532 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-03 07:58:42,510 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 145 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-03 07:58:42,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 267 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-03 07:58:42,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-03 07:58:42,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2024-11-03 07:58:42,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 66 states have internal predecessors, (85), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-03 07:58:42,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 173 transitions. [2024-11-03 07:58:42,531 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 173 transitions. Word has length 270 [2024-11-03 07:58:42,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:58:42,532 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 173 transitions. [2024-11-03 07:58:42,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-11-03 07:58:42,533 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 173 transitions. [2024-11-03 07:58:42,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-03 07:58:42,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:58:42,538 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:58:42,555 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 07:58:42,739 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 07:58:42,739 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:58:42,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:58:42,740 INFO L85 PathProgramCache]: Analyzing trace with hash -652403534, now seen corresponding path program 1 times [2024-11-03 07:58:42,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:58:42,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321126716] [2024-11-03 07:58:42,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:58:42,741 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 07:58:42,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:58:42,743 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 07:58:42,744 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 07:58:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:58:43,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 07:58:43,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:58:43,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-03 07:58:43,809 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:58:44,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-03 07:58:44,460 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:58:44,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321126716] [2024-11-03 07:58:44,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [321126716] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:58:44,461 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:58:44,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2024-11-03 07:58:44,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610375132] [2024-11-03 07:58:44,462 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:58:44,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 07:58:44,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:58:44,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 07:58:44,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:58:44,465 INFO L87 Difference]: Start difference. First operand 113 states and 173 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2024-11-03 07:58:44,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:58:44,950 INFO L93 Difference]: Finished difference Result 223 states and 343 transitions. [2024-11-03 07:58:44,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 07:58:44,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 270 [2024-11-03 07:58:44,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:58:44,970 INFO L225 Difference]: With dead ends: 223 [2024-11-03 07:58:44,970 INFO L226 Difference]: Without dead ends: 113 [2024-11-03 07:58:44,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 536 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 07:58:44,973 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 07:58:44,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 166 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 07:58:44,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-03 07:58:44,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-03 07:58:44,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 66 states have internal predecessors, (84), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-03 07:58:44,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 172 transitions. [2024-11-03 07:58:44,994 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 172 transitions. Word has length 270 [2024-11-03 07:58:44,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:58:44,994 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 172 transitions. [2024-11-03 07:58:44,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2024-11-03 07:58:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 172 transitions. [2024-11-03 07:58:44,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-03 07:58:44,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:58:44,997 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:58:45,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-03 07:58:45,201 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 07:58:45,202 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:58:45,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:58:45,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1673471888, now seen corresponding path program 1 times [2024-11-03 07:58:45,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:58:45,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168475251] [2024-11-03 07:58:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:58:45,203 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 07:58:45,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:58:45,207 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 07:58:45,209 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 07:58:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:58:45,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 07:58:45,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:58:46,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1929 proven. 60 refuted. 0 times theorem prover too weak. 1795 trivial. 0 not checked. [2024-11-03 07:58:46,047 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:58:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 69 proven. 60 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2024-11-03 07:58:46,526 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:58:46,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168475251] [2024-11-03 07:58:46,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [168475251] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:58:46,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:58:46,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-03 07:58:46,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656625959] [2024-11-03 07:58:46,531 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:58:46,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 07:58:46,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:58:46,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 07:58:46,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 07:58:46,533 INFO L87 Difference]: Start difference. First operand 113 states and 172 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-11-03 07:58:48,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:58:49,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:58:49,353 INFO L93 Difference]: Finished difference Result 338 states and 512 transitions. [2024-11-03 07:58:49,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-03 07:58:49,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 270 [2024-11-03 07:58:49,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:58:49,357 INFO L225 Difference]: With dead ends: 338 [2024-11-03 07:58:49,357 INFO L226 Difference]: Without dead ends: 228 [2024-11-03 07:58:49,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 532 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-11-03 07:58:49,359 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 184 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-03 07:58:49,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 538 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-03 07:58:49,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-03 07:58:49,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 218. [2024-11-03 07:58:49,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 125 states have (on average 1.248) internal successors, (156), 125 states have internal predecessors, (156), 88 states have call successors, (88), 4 states have call predecessors, (88), 4 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-03 07:58:49,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 332 transitions. [2024-11-03 07:58:49,412 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 332 transitions. Word has length 270 [2024-11-03 07:58:49,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:58:49,413 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 332 transitions. [2024-11-03 07:58:49,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-11-03 07:58:49,417 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 332 transitions. [2024-11-03 07:58:49,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-03 07:58:49,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:58:49,419 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:58:49,434 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 07:58:49,619 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 07:58:49,620 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:58:49,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:58:49,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2131519120, now seen corresponding path program 1 times [2024-11-03 07:58:49,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:58:49,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782009304] [2024-11-03 07:58:49,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:58:49,621 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 07:58:49,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:58:49,623 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 07:58:49,624 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 07:58:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:58:50,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 07:58:50,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:58:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 2086 proven. 138 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2024-11-03 07:58:51,153 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:58:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 114 proven. 141 refuted. 0 times theorem prover too weak. 3529 trivial. 0 not checked. [2024-11-03 07:58:51,946 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:58:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782009304] [2024-11-03 07:58:51,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1782009304] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:58:51,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:58:51,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2024-11-03 07:58:51,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105545222] [2024-11-03 07:58:51,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:58:51,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 07:58:51,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:58:51,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 07:58:51,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-03 07:58:51,950 INFO L87 Difference]: Start difference. First operand 218 states and 332 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (69), 3 states have call predecessors, (69), 7 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2024-11-03 07:58:56,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:58:56,092 INFO L93 Difference]: Finished difference Result 980 states and 1443 transitions. [2024-11-03 07:58:56,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-03 07:58:56,093 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (69), 3 states have call predecessors, (69), 7 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) Word has length 270 [2024-11-03 07:58:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:58:56,100 INFO L225 Difference]: With dead ends: 980 [2024-11-03 07:58:56,100 INFO L226 Difference]: Without dead ends: 765 [2024-11-03 07:58:56,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 529 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=556, Invalid=1514, Unknown=0, NotChecked=0, Total=2070 [2024-11-03 07:58:56,103 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 371 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-03 07:58:56,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 581 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-03 07:58:56,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-03 07:58:56,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 705. [2024-11-03 07:58:56,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 398 states have (on average 1.1959798994974875) internal successors, (476), 399 states have internal predecessors, (476), 282 states have call successors, (282), 24 states have call predecessors, (282), 24 states have return successors, (282), 281 states have call predecessors, (282), 282 states have call successors, (282) [2024-11-03 07:58:56,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1040 transitions. [2024-11-03 07:58:56,243 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1040 transitions. Word has length 270 [2024-11-03 07:58:56,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:58:56,244 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 1040 transitions. [2024-11-03 07:58:56,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (69), 3 states have call predecessors, (69), 7 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2024-11-03 07:58:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1040 transitions. [2024-11-03 07:58:56,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-03 07:58:56,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:58:56,247 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:58:56,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-03 07:58:56,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:58:56,451 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:58:56,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:58:56,451 INFO L85 PathProgramCache]: Analyzing trace with hash 708038653, now seen corresponding path program 1 times [2024-11-03 07:58:56,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:58:56,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86579255] [2024-11-03 07:58:56,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:58:56,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:58:56,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:58:56,453 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 07:58:56,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-03 07:58:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:58:56,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 07:58:56,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:58:57,343 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 2124 proven. 63 refuted. 0 times theorem prover too weak. 1597 trivial. 0 not checked. [2024-11-03 07:58:57,344 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:58:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 114 proven. 15 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2024-11-03 07:58:58,234 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:58:58,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86579255] [2024-11-03 07:58:58,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [86579255] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:58:58,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:58:58,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13 [2024-11-03 07:58:58,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744957678] [2024-11-03 07:58:58,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:58:58,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-03 07:58:58,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:58:58,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-03 07:58:58,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-03 07:58:58,237 INFO L87 Difference]: Start difference. First operand 705 states and 1040 transitions. Second operand has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 4 states have call successors, (61), 3 states have call predecessors, (61), 6 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2024-11-03 07:59:05,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:59:05,618 INFO L93 Difference]: Finished difference Result 1505 states and 2149 transitions. [2024-11-03 07:59:05,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-03 07:59:05,642 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 4 states have call successors, (61), 3 states have call predecessors, (61), 6 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 271 [2024-11-03 07:59:05,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:59:05,653 INFO L225 Difference]: With dead ends: 1505 [2024-11-03 07:59:05,654 INFO L226 Difference]: Without dead ends: 831 [2024-11-03 07:59:05,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2024-11-03 07:59:05,658 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 285 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-03 07:59:05,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 554 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-03 07:59:05,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2024-11-03 07:59:05,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 777. [2024-11-03 07:59:05,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 452 states have (on average 1.170353982300885) internal successors, (529), 453 states have internal predecessors, (529), 282 states have call successors, (282), 42 states have call predecessors, (282), 42 states have return successors, (282), 281 states have call predecessors, (282), 282 states have call successors, (282) [2024-11-03 07:59:05,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1093 transitions. [2024-11-03 07:59:05,782 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1093 transitions. Word has length 271 [2024-11-03 07:59:05,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:59:05,783 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1093 transitions. [2024-11-03 07:59:05,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 4 states have call successors, (61), 3 states have call predecessors, (61), 6 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2024-11-03 07:59:05,783 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1093 transitions. [2024-11-03 07:59:05,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-03 07:59:05,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:59:05,786 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:05,802 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 (7)] Ended with exit code 0 [2024-11-03 07:59:05,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:59:05,987 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:59:05,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:59:05,989 INFO L85 PathProgramCache]: Analyzing trace with hash 966204091, now seen corresponding path program 1 times [2024-11-03 07:59:05,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:59:05,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253925340] [2024-11-03 07:59:05,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:59:05,990 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 07:59:05,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:59:05,993 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 07:59:05,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-03 07:59:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:59:06,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-03 07:59:06,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:59:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 2158 proven. 255 refuted. 0 times theorem prover too weak. 1371 trivial. 0 not checked. [2024-11-03 07:59:16,354 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:59:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 114 proven. 141 refuted. 0 times theorem prover too weak. 3529 trivial. 0 not checked. [2024-11-03 07:59:47,888 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:59:47,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253925340] [2024-11-03 07:59:47,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [253925340] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:59:47,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:59:47,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2024-11-03 07:59:47,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048454920] [2024-11-03 07:59:47,889 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:59:47,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-03 07:59:47,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:59:47,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-03 07:59:47,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2024-11-03 07:59:47,891 INFO L87 Difference]: Start difference. First operand 777 states and 1093 transitions. Second operand has 24 states, 24 states have (on average 5.333333333333333) internal successors, (128), 24 states have internal predecessors, (128), 7 states have call successors, (88), 5 states have call predecessors, (88), 10 states have return successors, (88), 7 states have call predecessors, (88), 7 states have call successors, (88)