/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-30.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 19:23:19,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 19:23:19,488 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 19:23:19,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 19:23:19,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 19:23:19,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 19:23:19,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 19:23:19,525 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 19:23:19,525 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 19:23:19,528 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 19:23:19,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 19:23:19,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 19:23:19,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 19:23:19,530 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 19:23:19,530 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 19:23:19,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 19:23:19,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 19:23:19,531 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 19:23:19,531 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 19:23:19,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 19:23:19,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 19:23:19,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 19:23:19,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 19:23:19,534 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 19:23:19,535 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 19:23:19,535 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 19:23:19,535 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 19:23:19,535 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 19:23:19,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 19:23:19,536 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 19:23:19,536 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 19:23:19,536 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 19:23:19,536 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 19:23:19,537 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 19:23:19,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:23:19,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 19:23:19,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 19:23:19,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 19:23:19,538 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 19:23:19,539 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 19:23:19,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 19:23:19,539 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 19:23:19,539 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 19:23:19,539 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 19:23:19,540 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:23:19,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 19:23:19,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 19:23:19,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 19:23:19,793 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 19:23:19,794 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 19:23:19,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-30.i [2024-11-05 19:23:21,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 19:23:21,445 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 19:23:21,450 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-30.i [2024-11-05 19:23:21,465 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a758a9fc8/6d78c4a1254e4bac8f28a02db62d6ce9/FLAG81dea8b0c [2024-11-05 19:23:21,785 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a758a9fc8/6d78c4a1254e4bac8f28a02db62d6ce9 [2024-11-05 19:23:21,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 19:23:21,789 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 19:23:21,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 19:23:21,790 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 19:23:21,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 19:23:21,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:23:21" (1/1) ... [2024-11-05 19:23:21,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207e43d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:21, skipping insertion in model container [2024-11-05 19:23:21,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:23:21" (1/1) ... [2024-11-05 19:23:21,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 19:23:21,998 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-30.i[916,929] [2024-11-05 19:23:22,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:23:22,124 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 19:23:22,136 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-30.i[916,929] [2024-11-05 19:23:22,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:23:22,240 INFO L204 MainTranslator]: Completed translation [2024-11-05 19:23:22,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22 WrapperNode [2024-11-05 19:23:22,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 19:23:22,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 19:23:22,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 19:23:22,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 19:23:22,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,296 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188 [2024-11-05 19:23:22,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 19:23:22,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 19:23:22,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 19:23:22,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 19:23:22,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,334 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-05 19:23:22,335 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,335 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 19:23:22,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 19:23:22,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 19:23:22,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 19:23:22,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (1/1) ... [2024-11-05 19:23:22,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:23:22,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 19:23:22,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-05 19:23:22,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-05 19:23:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 19:23:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 19:23:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 19:23:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 19:23:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 19:23:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 19:23:22,542 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 19:23:22,545 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 19:23:28,492 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-05 19:23:28,492 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 19:23:28,510 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 19:23:28,510 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 19:23:28,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:23:28 BoogieIcfgContainer [2024-11-05 19:23:28,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 19:23:28,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 19:23:28,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 19:23:28,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 19:23:28,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:23:21" (1/3) ... [2024-11-05 19:23:28,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfd3c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:23:28, skipping insertion in model container [2024-11-05 19:23:28,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:22" (2/3) ... [2024-11-05 19:23:28,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfd3c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:23:28, skipping insertion in model container [2024-11-05 19:23:28,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:23:28" (3/3) ... [2024-11-05 19:23:28,519 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-30.i [2024-11-05 19:23:28,535 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 19:23:28,535 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 19:23:28,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 19:23:28,602 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;@46ac1bf1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 19:23:28,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 19:23:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 19:23:28,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-05 19:23:28,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:23:28,626 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:23:28,627 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:23:28,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:23:28,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1847948568, now seen corresponding path program 1 times [2024-11-05 19:23:28,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:23:28,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363495862] [2024-11-05 19:23:28,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:23:28,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:23:28,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:23:28,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 19:23:28,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-05 19:23:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:23:29,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 19:23:29,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:23:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2024-11-05 19:23:29,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:23:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 8 proven. 38 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2024-11-05 19:23:29,579 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:23:29,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363495862] [2024-11-05 19:23:29,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1363495862] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 19:23:29,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 19:23:29,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 19:23:29,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814215550] [2024-11-05 19:23:29,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 19:23:29,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 19:23:29,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:23:29,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 19:23:29,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:23:29,607 INFO L87 Difference]: Start difference. First operand has 79 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-05 19:23:29,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:23:29,633 INFO L93 Difference]: Finished difference Result 150 states and 262 transitions. [2024-11-05 19:23:29,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 19:23:29,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 158 [2024-11-05 19:23:29,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:23:29,644 INFO L225 Difference]: With dead ends: 150 [2024-11-05 19:23:29,644 INFO L226 Difference]: Without dead ends: 74 [2024-11-05 19:23:29,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:23:29,656 INFO L432 NwaCegarLoop]: 112 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, 112 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 19:23:29,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 19:23:29,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-05 19:23:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-05 19:23:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 48 states have internal predecessors, (64), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 19:23:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 112 transitions. [2024-11-05 19:23:29,707 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 112 transitions. Word has length 158 [2024-11-05 19:23:29,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:23:29,707 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 112 transitions. [2024-11-05 19:23:29,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-05 19:23:29,708 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 112 transitions. [2024-11-05 19:23:29,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-05 19:23:29,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:23:29,712 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:23:29,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-05 19:23:29,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:23:29,913 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:23:29,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:23:29,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1486965292, now seen corresponding path program 1 times [2024-11-05 19:23:29,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:23:29,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488198153] [2024-11-05 19:23:29,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:23:29,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:23:29,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:23:29,919 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 19:23:29,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-05 19:23:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:23:30,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-05 19:23:30,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:23:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-05 19:23:31,434 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:23:31,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-05 19:23:31,965 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:23:31,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488198153] [2024-11-05 19:23:31,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1488198153] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 19:23:31,966 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 19:23:31,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4 [2024-11-05 19:23:31,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039761973] [2024-11-05 19:23:31,966 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 19:23:31,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-05 19:23:31,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:23:31,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-05 19:23:31,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-05 19:23:31,970 INFO L87 Difference]: Start difference. First operand 74 states and 112 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-05 19:23:35,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:23:38,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:23:38,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:23:38,321 INFO L93 Difference]: Finished difference Result 256 states and 387 transitions. [2024-11-05 19:23:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 19:23:38,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 158 [2024-11-05 19:23:38,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:23:38,358 INFO L225 Difference]: With dead ends: 256 [2024-11-05 19:23:38,359 INFO L226 Difference]: Without dead ends: 185 [2024-11-05 19:23:38,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-05 19:23:38,362 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 134 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-05 19:23:38,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 357 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-05 19:23:38,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-05 19:23:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 134. [2024-11-05 19:23:38,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 83 states have internal predecessors, (105), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-05 19:23:38,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 201 transitions. [2024-11-05 19:23:38,407 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 201 transitions. Word has length 158 [2024-11-05 19:23:38,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:23:38,408 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 201 transitions. [2024-11-05 19:23:38,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-05 19:23:38,408 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 201 transitions. [2024-11-05 19:23:38,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-05 19:23:38,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:23:38,413 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:23:38,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-05 19:23:38,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:23:38,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:23:38,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:23:38,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1348169896, now seen corresponding path program 1 times [2024-11-05 19:23:38,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:23:38,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970830656] [2024-11-05 19:23:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:23:38,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:23:38,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:23:38,619 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 19:23:38,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-05 19:23:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:23:38,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-05 19:23:38,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:23:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 534 proven. 33 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-05 19:23:39,723 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:23:40,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 99 proven. 36 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2024-11-05 19:23:40,470 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:23:40,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970830656] [2024-11-05 19:23:40,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [970830656] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:23:40,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:23:40,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2024-11-05 19:23:40,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792670565] [2024-11-05 19:23:40,472 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:23:40,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-05 19:23:40,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:23:40,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-05 19:23:40,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-05 19:23:40,477 INFO L87 Difference]: Start difference. First operand 134 states and 201 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (31), 3 states have call predecessors, (31), 7 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-05 19:23:45,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:23:48,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:23:48,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:23:48,103 INFO L93 Difference]: Finished difference Result 219 states and 319 transitions. [2024-11-05 19:23:48,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-05 19:23:48,137 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (31), 3 states have call predecessors, (31), 7 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 159 [2024-11-05 19:23:48,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:23:48,139 INFO L225 Difference]: With dead ends: 219 [2024-11-05 19:23:48,139 INFO L226 Difference]: Without dead ends: 88 [2024-11-05 19:23:48,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 306 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=214, Invalid=436, Unknown=0, NotChecked=0, Total=650 [2024-11-05 19:23:48,141 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 207 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 153 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-05 19:23:48,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 225 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 217 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-05 19:23:48,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-05 19:23:48,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2024-11-05 19:23:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 54 states have internal predecessors, (65), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 19:23:48,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 113 transitions. [2024-11-05 19:23:48,156 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 113 transitions. Word has length 159 [2024-11-05 19:23:48,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:23:48,157 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 113 transitions. [2024-11-05 19:23:48,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (31), 3 states have call predecessors, (31), 7 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-05 19:23:48,157 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 113 transitions. [2024-11-05 19:23:48,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-05 19:23:48,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:23:48,161 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:23:48,181 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 [2024-11-05 19:23:48,361 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 [2024-11-05 19:23:48,362 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:23:48,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:23:48,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1258003313, now seen corresponding path program 1 times [2024-11-05 19:23:48,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:23:48,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130817253] [2024-11-05 19:23:48,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:23:48,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:23:48,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:23:48,366 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) [2024-11-05 19:23:48,367 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 [2024-11-05 19:23:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:23:48,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-05 19:23:48,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:23:54,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 575 proven. 189 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-05 19:23:54,105 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:24:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-05 19:24:06,589 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:24:06,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130817253] [2024-11-05 19:24:06,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2130817253] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:24:06,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:24:06,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11] total 30 [2024-11-05 19:24:06,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178121200] [2024-11-05 19:24:06,593 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:24:06,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-05 19:24:06,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:24:06,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-05 19:24:06,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=629, Unknown=0, NotChecked=0, Total=870 [2024-11-05 19:24:06,599 INFO L87 Difference]: Start difference. First operand 82 states and 113 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 28 states have internal predecessors, (103), 10 states have call successors, (48), 7 states have call predecessors, (48), 9 states have return successors, (48), 8 states have call predecessors, (48), 10 states have call successors, (48) [2024-11-05 19:24:17,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-05 19:24:22,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-05 19:24:26,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-05 19:24:37,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:24:37,768 INFO L93 Difference]: Finished difference Result 342 states and 433 transitions. [2024-11-05 19:24:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-05 19:24:37,770 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 28 states have internal predecessors, (103), 10 states have call successors, (48), 7 states have call predecessors, (48), 9 states have return successors, (48), 8 states have call predecessors, (48), 10 states have call successors, (48) Word has length 160 [2024-11-05 19:24:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:24:37,772 INFO L225 Difference]: With dead ends: 342 [2024-11-05 19:24:37,773 INFO L226 Difference]: Without dead ends: 263 [2024-11-05 19:24:37,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 297 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 972 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=862, Invalid=2560, Unknown=0, NotChecked=0, Total=3422 [2024-11-05 19:24:37,775 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 346 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 74 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2024-11-05 19:24:37,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 624 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 987 Invalid, 2 Unknown, 0 Unchecked, 26.3s Time] [2024-11-05 19:24:37,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-05 19:24:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 117. [2024-11-05 19:24:37,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 84 states have internal predecessors, (100), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 19:24:37,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 148 transitions. [2024-11-05 19:24:37,801 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 148 transitions. Word has length 160 [2024-11-05 19:24:37,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:24:37,801 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 148 transitions. [2024-11-05 19:24:37,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 28 states have internal predecessors, (103), 10 states have call successors, (48), 7 states have call predecessors, (48), 9 states have return successors, (48), 8 states have call predecessors, (48), 10 states have call successors, (48) [2024-11-05 19:24:37,802 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 148 transitions. [2024-11-05 19:24:37,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-05 19:24:37,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:24:37,804 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:24:37,819 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 [2024-11-05 19:24:38,004 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 [2024-11-05 19:24:38,005 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:24:38,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:24:38,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1261956621, now seen corresponding path program 1 times [2024-11-05 19:24:38,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:24:38,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950969811] [2024-11-05 19:24:38,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:24:38,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:24:38,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:24:38,008 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) [2024-11-05 19:24:38,008 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 [2024-11-05 19:24:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:24:38,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-05 19:24:38,379 INFO L278 TraceCheckSpWp]: Computing forward predicates...