/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:34:32,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:34:32,507 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 14:34:32,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:34:32,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:34:32,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:34:32,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:34:32,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:34:32,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:34:32,546 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:34:32,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:34:32,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:34:32,547 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:34:32,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:34:32,548 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:34:32,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:34:32,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:34:32,549 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:34:32,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:34:32,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:34:32,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:34:32,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:34:32,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:34:32,550 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:34:32,551 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:34:32,551 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:34:32,551 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:34:32,551 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:34:32,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:34:32,551 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:34:32,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:34:32,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:34:32,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:34:32,552 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:34:32,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:34:32,552 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:34:32,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:34:32,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:34:32,553 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:34:32,553 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:34:32,553 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:34:32,553 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:34:32,553 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:34:32,553 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:34:32,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:34:32,554 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:34:32,554 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:34:32,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:34:32,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:34:32,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:34:32,753 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:34:32,754 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:34:32,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-87.i [2023-12-16 14:34:33,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:34:34,012 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:34:34,012 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-87.i [2023-12-16 14:34:34,021 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02ed4597/a966c6b31eca4babb5fa61fadeae5378/FLAGc974c7f60 [2023-12-16 14:34:34,033 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02ed4597/a966c6b31eca4babb5fa61fadeae5378 [2023-12-16 14:34:34,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:34:34,036 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:34:34,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:34:34,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:34:34,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:34:34,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586905ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34, skipping insertion in model container [2023-12-16 14:34:34,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,075 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:34:34,188 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-87.i[916,929] [2023-12-16 14:34:34,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:34:34,260 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:34:34,268 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-87.i[916,929] [2023-12-16 14:34:34,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:34:34,329 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:34:34,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34 WrapperNode [2023-12-16 14:34:34,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:34:34,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:34:34,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:34:34,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:34:34,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,368 INFO L138 Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2023-12-16 14:34:34,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:34:34,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:34:34,369 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:34:34,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:34:34,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,384 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,395 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 14:34:34,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:34:34,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:34:34,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:34:34,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:34:34,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (1/1) ... [2023-12-16 14:34:34,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:34:34,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:34:34,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 14:34:34,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 14:34:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:34:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:34:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:34:34,480 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:34:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:34:34,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:34:34,553 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:34:34,555 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:34:35,305 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:34:35,336 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:34:35,336 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:34:35,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:34:35 BoogieIcfgContainer [2023-12-16 14:34:35,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:34:35,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:34:35,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:34:35,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:34:35,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:34:34" (1/3) ... [2023-12-16 14:34:35,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c59dec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:34:35, skipping insertion in model container [2023-12-16 14:34:35,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:34:34" (2/3) ... [2023-12-16 14:34:35,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c59dec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:34:35, skipping insertion in model container [2023-12-16 14:34:35,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:34:35" (3/3) ... [2023-12-16 14:34:35,342 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-87.i [2023-12-16 14:34:35,353 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:34:35,353 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:34:35,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:34:35,395 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33ad9902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:34:35,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:34:35,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 50 states have internal predecessors, (69), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 14:34:35,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 14:34:35,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:34:35,413 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:34:35,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:34:35,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:34:35,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1740645682, now seen corresponding path program 1 times [2023-12-16 14:34:35,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:34:35,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69130086] [2023-12-16 14:34:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:34:35,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:34:35,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:34:35,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:34:35,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 14:34:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:34:35,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:34:35,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:34:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 626 proven. 0 refuted. 0 times theorem prover too weak. 1618 trivial. 0 not checked. [2023-12-16 14:34:35,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:34:35,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:34:35,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69130086] [2023-12-16 14:34:35,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69130086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:34:35,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:34:35,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:34:35,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125199361] [2023-12-16 14:34:35,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:34:35,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:34:35,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:34:35,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:34:35,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:34:35,863 INFO L87 Difference]: Start difference. First operand has 86 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 50 states have internal predecessors, (69), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-16 14:34:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:34:36,199 INFO L93 Difference]: Finished difference Result 169 states and 306 transitions. [2023-12-16 14:34:36,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:34:36,223 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 209 [2023-12-16 14:34:36,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:34:36,229 INFO L225 Difference]: With dead ends: 169 [2023-12-16 14:34:36,229 INFO L226 Difference]: Without dead ends: 84 [2023-12-16 14:34:36,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:34:36,238 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 14:34:36,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 14:34:36,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-16 14:34:36,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-16 14:34:36,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 48 states have internal predecessors, (64), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 14:34:36,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 132 transitions. [2023-12-16 14:34:36,313 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 132 transitions. Word has length 209 [2023-12-16 14:34:36,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:34:36,314 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 132 transitions. [2023-12-16 14:34:36,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-16 14:34:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 132 transitions. [2023-12-16 14:34:36,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 14:34:36,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:34:36,320 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:34:36,332 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 (2)] Forceful destruction successful, exit code 0 [2023-12-16 14:34:36,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:34:36,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:34:36,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:34:36,532 INFO L85 PathProgramCache]: Analyzing trace with hash 810858134, now seen corresponding path program 1 times [2023-12-16 14:34:36,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:34:36,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616770885] [2023-12-16 14:34:36,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:34:36,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:34:36,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:34:36,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:34:36,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 14:34:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:34:36,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 14:34:36,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:34:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1229 proven. 60 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2023-12-16 14:34:37,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:34:37,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 132 proven. 63 refuted. 0 times theorem prover too weak. 2049 trivial. 0 not checked. [2023-12-16 14:34:37,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:34:37,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616770885] [2023-12-16 14:34:37,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616770885] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:34:37,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:34:37,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-12-16 14:34:37,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688645125] [2023-12-16 14:34:37,844 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:34:37,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 14:34:37,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:34:37,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 14:34:37,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 14:34:37,847 INFO L87 Difference]: Start difference. First operand 84 states and 132 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2023-12-16 14:34:39,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:34:39,342 INFO L93 Difference]: Finished difference Result 266 states and 402 transitions. [2023-12-16 14:34:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 14:34:39,342 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 209 [2023-12-16 14:34:39,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:34:39,345 INFO L225 Difference]: With dead ends: 266 [2023-12-16 14:34:39,345 INFO L226 Difference]: Without dead ends: 183 [2023-12-16 14:34:39,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 402 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2023-12-16 14:34:39,347 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 373 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 14:34:39,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 423 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 14:34:39,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-12-16 14:34:39,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 170. [2023-12-16 14:34:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 98 states have (on average 1.2755102040816326) internal successors, (125), 99 states have internal predecessors, (125), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 14:34:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 257 transitions. [2023-12-16 14:34:39,367 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 257 transitions. Word has length 209 [2023-12-16 14:34:39,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:34:39,367 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 257 transitions. [2023-12-16 14:34:39,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2023-12-16 14:34:39,368 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 257 transitions. [2023-12-16 14:34:39,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 14:34:39,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:34:39,369 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:34:39,395 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 [2023-12-16 14:34:39,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:34:39,580 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:34:39,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:34:39,581 INFO L85 PathProgramCache]: Analyzing trace with hash -777489768, now seen corresponding path program 1 times [2023-12-16 14:34:39,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:34:39,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225148405] [2023-12-16 14:34:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:34:39,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:34:39,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:34:39,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:34:39,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 14:34:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:34:39,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 14:34:39,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:34:40,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1143 proven. 54 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2023-12-16 14:34:40,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:34:40,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 45 proven. 54 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2023-12-16 14:34:40,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:34:40,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225148405] [2023-12-16 14:34:40,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225148405] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:34:40,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:34:40,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 14:34:40,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905428820] [2023-12-16 14:34:40,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:34:40,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 14:34:40,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:34:40,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 14:34:40,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 14:34:40,224 INFO L87 Difference]: Start difference. First operand 170 states and 257 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-12-16 14:34:40,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:34:40,856 INFO L93 Difference]: Finished difference Result 359 states and 531 transitions. [2023-12-16 14:34:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 14:34:40,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 209 [2023-12-16 14:34:40,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:34:40,882 INFO L225 Difference]: With dead ends: 359 [2023-12-16 14:34:40,882 INFO L226 Difference]: Without dead ends: 190 [2023-12-16 14:34:40,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 410 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 14:34:40,884 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 66 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 14:34:40,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 200 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 14:34:40,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-12-16 14:34:40,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 178. [2023-12-16 14:34:40,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 104 states have (on average 1.2403846153846154) internal successors, (129), 105 states have internal predecessors, (129), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 14:34:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 261 transitions. [2023-12-16 14:34:40,908 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 261 transitions. Word has length 209 [2023-12-16 14:34:40,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:34:40,909 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 261 transitions. [2023-12-16 14:34:40,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-12-16 14:34:40,910 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 261 transitions. [2023-12-16 14:34:40,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 14:34:40,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:34:40,913 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:34:40,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 14:34:41,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:34:41,125 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:34:41,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:34:41,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1798558122, now seen corresponding path program 1 times [2023-12-16 14:34:41,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:34:41,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372643207] [2023-12-16 14:34:41,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:34:41,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:34:41,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:34:41,142 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:34:41,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 14:34:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:34:41,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 14:34:41,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:34:42,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-16 14:34:42,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:34:42,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:34:42,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372643207] [2023-12-16 14:34:42,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372643207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:34:42,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:34:42,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 14:34:42,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952235415] [2023-12-16 14:34:42,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:34:42,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 14:34:42,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:34:42,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 14:34:42,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 14:34:42,563 INFO L87 Difference]: Start difference. First operand 178 states and 261 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 14:34:46,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:34:46,083 INFO L93 Difference]: Finished difference Result 413 states and 603 transitions. [2023-12-16 14:34:46,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 14:34:46,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 209 [2023-12-16 14:34:46,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:34:46,098 INFO L225 Difference]: With dead ends: 413 [2023-12-16 14:34:46,099 INFO L226 Difference]: Without dead ends: 236 [2023-12-16 14:34:46,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 14:34:46,100 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 110 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 14:34:46,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 535 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 14:34:46,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-12-16 14:34:46,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 192. [2023-12-16 14:34:46,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 119 states have internal predecessors, (149), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 14:34:46,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 281 transitions. [2023-12-16 14:34:46,138 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 281 transitions. Word has length 209 [2023-12-16 14:34:46,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:34:46,138 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 281 transitions. [2023-12-16 14:34:46,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 14:34:46,139 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 281 transitions. [2023-12-16 14:34:46,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 14:34:46,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:34:46,140 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:34:46,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 14:34:46,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:34:46,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:34:46,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:34:46,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1687062548, now seen corresponding path program 1 times [2023-12-16 14:34:46,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:34:46,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513884513] [2023-12-16 14:34:46,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:34:46,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:34:46,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:34:46,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:34:46,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 14:34:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:34:46,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 60 conjunts are in the unsatisfiable core [2023-12-16 14:34:46,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 14:35:51,729 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:35:51,729 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:35:52,733 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 14:35:52,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 14:35:52,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 14:35:52,934 WARN L477 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 [2023-12-16 14:35:52,934 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 210 with TraceHistMax 34,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. [2023-12-16 14:35:52,938 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 14:35:52,939 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 14:35:52,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:35:52 BoogieIcfgContainer [2023-12-16 14:35:52,941 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 14:35:52,941 INFO L158 Benchmark]: Toolchain (without parser) took 78905.65ms. Allocated memory was 284.2MB in the beginning and 425.7MB in the end (delta: 141.6MB). Free memory was 241.0MB in the beginning and 324.4MB in the end (delta: -83.5MB). Peak memory consumption was 59.1MB. Max. memory is 8.0GB. [2023-12-16 14:35:52,942 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 14:35:52,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.88ms. Allocated memory is still 284.2MB. Free memory was 241.0MB in the beginning and 223.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 14:35:52,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.93ms. Allocated memory is still 284.2MB. Free memory was 223.7MB in the beginning and 220.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 14:35:52,942 INFO L158 Benchmark]: Boogie Preprocessor took 42.77ms. Allocated memory is still 284.2MB. Free memory was 220.5MB in the beginning and 216.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 14:35:52,942 INFO L158 Benchmark]: RCFGBuilder took 924.63ms. Allocated memory is still 284.2MB. Free memory was 216.3MB in the beginning and 185.9MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-16 14:35:52,943 INFO L158 Benchmark]: TraceAbstraction took 77603.20ms. Allocated memory was 284.2MB in the beginning and 425.7MB in the end (delta: 141.6MB). Free memory was 185.4MB in the beginning and 324.4MB in the end (delta: -139.1MB). Peak memory consumption was 3.5MB. Max. memory is 8.0GB. [2023-12-16 14:35:52,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 291.88ms. Allocated memory is still 284.2MB. Free memory was 241.0MB in the beginning and 223.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.93ms. Allocated memory is still 284.2MB. Free memory was 223.7MB in the beginning and 220.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.77ms. Allocated memory is still 284.2MB. Free memory was 220.5MB in the beginning and 216.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 924.63ms. Allocated memory is still 284.2MB. Free memory was 216.3MB in the beginning and 185.9MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 77603.20ms. Allocated memory was 284.2MB in the beginning and 425.7MB in the end (delta: 141.6MB). Free memory was 185.4MB in the beginning and 324.4MB in the end (delta: -139.1MB). Peak memory consumption was 3.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 210 with TraceHistMax 34,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 77.6s, OverallIterations: 5, TraceHistogramMax: 34, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 579 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 549 mSDsluCounter, 1287 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 866 mSDsCounter, 287 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 919 IncrementalHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 287 mSolverCounterUnsat, 421 mSDtfsCounter, 919 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1272 GetRequests, 1224 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=4, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 69 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 836 NumberOfCodeBlocks, 836 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1248 ConstructedInterpolants, 7 QuantifiedInterpolants, 2559 SizeOfPredicates, 20 NumberOfNonLiveVariables, 1389 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 13233/13464 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown