/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/combinations/Problem05_label45+token_ring.03.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:29:57,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:29:57,378 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 07:29:57,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:29:57,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:29:57,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:29:57,415 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:29:57,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:29:57,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:29:57,420 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:29:57,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:29:57,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:29:57,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:29:57,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:29:57,423 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:29:57,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:29:57,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:29:57,424 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:29:57,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:29:57,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:29:57,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:29:57,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:29:57,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:29:57,425 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:29:57,425 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:29:57,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:29:57,426 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:29:57,426 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:29:57,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:29:57,427 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:29:57,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:29:57,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:29:57,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:29:57,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:29:57,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:29:57,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:29:57,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:29:57,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:29:57,429 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:29:57,429 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:29:57,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:29:57,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:29:57,430 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:29:57,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:29:57,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:29:57,430 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:29:57,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:29:57,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:29:57,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:29:57,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:29:57,685 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:29:57,685 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:29:57,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.03.cil-2.c [2023-12-16 07:29:58,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:29:59,390 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:29:59,391 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.03.cil-2.c [2023-12-16 07:29:59,447 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf3b42c6d/3f98e934c25b48818681575631fa1452/FLAG8a2674d80 [2023-12-16 07:29:59,462 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf3b42c6d/3f98e934c25b48818681575631fa1452 [2023-12-16 07:29:59,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:29:59,465 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:29:59,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:29:59,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:29:59,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:29:59,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:29:59" (1/1) ... [2023-12-16 07:29:59,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae29de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:59, skipping insertion in model container [2023-12-16 07:29:59,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:29:59" (1/1) ... [2023-12-16 07:29:59,691 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:30:01,151 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.03.cil-2.c[380323,380336] [2023-12-16 07:30:01,176 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.03.cil-2.c[383339,383352] [2023-12-16 07:30:01,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:30:01,357 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:30:02,167 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.03.cil-2.c[380323,380336] [2023-12-16 07:30:02,173 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.03.cil-2.c[383339,383352] [2023-12-16 07:30:02,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:30:02,246 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:30:02,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02 WrapperNode [2023-12-16 07:30:02,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:30:02,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:30:02,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:30:02,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:30:02,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:02,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:02,635 INFO L138 Inliner]: procedures = 51, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12669 [2023-12-16 07:30:02,635 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:30:02,636 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:30:02,636 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:30:02,636 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:30:02,646 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:02,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:02,893 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:03,056 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 07:30:03,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:03,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:03,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:03,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:03,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:03,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:03,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:30:03,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:30:03,399 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:30:03,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:30:03,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (1/1) ... [2023-12-16 07:30:03,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:30:03,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:30:03,429 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 07:30:03,455 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 07:30:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:30:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:30:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:30:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:30:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:30:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:30:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:30:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:30:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:30:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:30:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:30:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:30:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:30:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:30:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:30:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:30:03,581 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:30:03,583 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:30:12,370 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:30:12,464 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:30:12,464 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-12-16 07:30:12,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:30:12 BoogieIcfgContainer [2023-12-16 07:30:12,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:30:12,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:30:12,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:30:12,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:30:12,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:29:59" (1/3) ... [2023-12-16 07:30:12,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2e34d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:30:12, skipping insertion in model container [2023-12-16 07:30:12,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:30:02" (2/3) ... [2023-12-16 07:30:12,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2e34d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:30:12, skipping insertion in model container [2023-12-16 07:30:12,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:30:12" (3/3) ... [2023-12-16 07:30:12,474 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.03.cil-2.c [2023-12-16 07:30:12,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:30:12,490 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:30:12,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:30:12,576 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;@6623f4b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:30:12,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:30:12,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 2264 states, 2238 states have (on average 1.8847184986595173) internal successors, (4218), 2241 states have internal predecessors, (4218), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 07:30:12,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:12,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:12,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:12,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:12,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:12,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1306743648, now seen corresponding path program 1 times [2023-12-16 07:30:12,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:12,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002227428] [2023-12-16 07:30:12,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:12,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:12,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:12,623 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 07:30:12,632 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 07:30:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:12,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:12,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:12,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:12,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:12,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002227428] [2023-12-16 07:30:12,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002227428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:12,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:12,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:12,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334210323] [2023-12-16 07:30:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:12,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:12,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:12,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:12,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:12,897 INFO L87 Difference]: Start difference. First operand has 2264 states, 2238 states have (on average 1.8847184986595173) internal successors, (4218), 2241 states have internal predecessors, (4218), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:13,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:13,520 INFO L93 Difference]: Finished difference Result 4664 states and 8728 transitions. [2023-12-16 07:30:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:30:13,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:13,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:13,547 INFO L225 Difference]: With dead ends: 4664 [2023-12-16 07:30:13,548 INFO L226 Difference]: Without dead ends: 2403 [2023-12-16 07:30:13,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:13,559 INFO L413 NwaCegarLoop]: 4114 mSDtfsCounter, 4327 mSDsluCounter, 8292 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 12406 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:13,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4338 Valid, 12406 Invalid, 343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:30:13,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2403 states. [2023-12-16 07:30:13,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2403 to 2392. [2023-12-16 07:30:13,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2348 states have (on average 1.8373083475298126) internal successors, (4314), 2351 states have internal predecessors, (4314), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2023-12-16 07:30:13,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 4373 transitions. [2023-12-16 07:30:13,703 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 4373 transitions. Word has length 71 [2023-12-16 07:30:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:13,704 INFO L495 AbstractCegarLoop]: Abstraction has 2392 states and 4373 transitions. [2023-12-16 07:30:13,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 4373 transitions. [2023-12-16 07:30:13,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:13,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:13,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:13,714 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 07:30:13,912 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 07:30:13,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:13,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:13,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2007992036, now seen corresponding path program 1 times [2023-12-16 07:30:13,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:13,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828950684] [2023-12-16 07:30:13,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:13,915 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 [2023-12-16 07:30:13,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:13,916 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 07:30:13,919 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 07:30:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:14,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:14,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:14,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:14,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:14,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828950684] [2023-12-16 07:30:14,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828950684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:14,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:14,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:14,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971681559] [2023-12-16 07:30:14,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:14,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:14,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:14,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:14,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:14,069 INFO L87 Difference]: Start difference. First operand 2392 states and 4373 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:14,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:14,382 INFO L93 Difference]: Finished difference Result 2654 states and 4780 transitions. [2023-12-16 07:30:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:14,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:14,394 INFO L225 Difference]: With dead ends: 2654 [2023-12-16 07:30:14,395 INFO L226 Difference]: Without dead ends: 2392 [2023-12-16 07:30:14,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:14,398 INFO L413 NwaCegarLoop]: 4086 mSDtfsCounter, 4220 mSDsluCounter, 8110 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4231 SdHoareTripleChecker+Valid, 12196 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:14,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4231 Valid, 12196 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:14,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2023-12-16 07:30:14,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2023-12-16 07:30:14,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2348 states have (on average 1.834327086882453) internal successors, (4307), 2351 states have internal predecessors, (4307), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2023-12-16 07:30:14,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 4366 transitions. [2023-12-16 07:30:14,471 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 4366 transitions. Word has length 71 [2023-12-16 07:30:14,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:14,471 INFO L495 AbstractCegarLoop]: Abstraction has 2392 states and 4366 transitions. [2023-12-16 07:30:14,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:14,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 4366 transitions. [2023-12-16 07:30:14,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:14,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:14,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:14,487 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 [2023-12-16 07:30:14,687 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 07:30:14,688 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:14,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:14,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1987259680, now seen corresponding path program 1 times [2023-12-16 07:30:14,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:14,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530985413] [2023-12-16 07:30:14,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:14,689 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 07:30:14,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:14,691 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 07:30:14,726 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 07:30:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:14,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:14,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:14,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:14,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:14,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530985413] [2023-12-16 07:30:14,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530985413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:14,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:14,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:14,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002142222] [2023-12-16 07:30:14,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:14,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:14,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:14,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:14,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:14,848 INFO L87 Difference]: Start difference. First operand 2392 states and 4366 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:15,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:15,244 INFO L93 Difference]: Finished difference Result 2654 states and 4766 transitions. [2023-12-16 07:30:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:15,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:15,256 INFO L225 Difference]: With dead ends: 2654 [2023-12-16 07:30:15,256 INFO L226 Difference]: Without dead ends: 2392 [2023-12-16 07:30:15,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:15,259 INFO L413 NwaCegarLoop]: 4083 mSDtfsCounter, 4214 mSDsluCounter, 8106 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4225 SdHoareTripleChecker+Valid, 12189 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:15,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4225 Valid, 12189 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:15,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2023-12-16 07:30:15,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2023-12-16 07:30:15,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2348 states have (on average 1.8313458262350937) internal successors, (4300), 2351 states have internal predecessors, (4300), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2023-12-16 07:30:15,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 4359 transitions. [2023-12-16 07:30:15,326 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 4359 transitions. Word has length 71 [2023-12-16 07:30:15,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:15,326 INFO L495 AbstractCegarLoop]: Abstraction has 2392 states and 4359 transitions. [2023-12-16 07:30:15,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:15,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 4359 transitions. [2023-12-16 07:30:15,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:15,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:15,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:15,335 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 07:30:15,532 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 07:30:15,532 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:15,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:15,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1763186532, now seen corresponding path program 1 times [2023-12-16 07:30:15,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:15,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403329025] [2023-12-16 07:30:15,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:15,534 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 07:30:15,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:15,539 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 07:30:15,544 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 07:30:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:15,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:15,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:15,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:15,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:15,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:15,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403329025] [2023-12-16 07:30:15,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403329025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:15,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:15,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:15,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123143978] [2023-12-16 07:30:15,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:15,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:15,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:15,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:15,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:15,674 INFO L87 Difference]: Start difference. First operand 2392 states and 4359 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:15,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:15,960 INFO L93 Difference]: Finished difference Result 2654 states and 4752 transitions. [2023-12-16 07:30:15,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:15,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:15,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:15,972 INFO L225 Difference]: With dead ends: 2654 [2023-12-16 07:30:15,972 INFO L226 Difference]: Without dead ends: 2392 [2023-12-16 07:30:15,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:15,975 INFO L413 NwaCegarLoop]: 4080 mSDtfsCounter, 4208 mSDsluCounter, 8102 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4219 SdHoareTripleChecker+Valid, 12182 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:15,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4219 Valid, 12182 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2023-12-16 07:30:16,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2023-12-16 07:30:16,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2348 states have (on average 1.8283645655877343) internal successors, (4293), 2351 states have internal predecessors, (4293), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2023-12-16 07:30:16,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 4352 transitions. [2023-12-16 07:30:16,042 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 4352 transitions. Word has length 71 [2023-12-16 07:30:16,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:16,043 INFO L495 AbstractCegarLoop]: Abstraction has 2392 states and 4352 transitions. [2023-12-16 07:30:16,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:16,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 4352 transitions. [2023-12-16 07:30:16,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:16,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:16,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:16,052 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 07:30:16,253 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 07:30:16,253 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:16,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:16,254 INFO L85 PathProgramCache]: Analyzing trace with hash 2022716000, now seen corresponding path program 1 times [2023-12-16 07:30:16,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:16,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268493888] [2023-12-16 07:30:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:16,254 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 07:30:16,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:16,255 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 07:30:16,256 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 07:30:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:16,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:16,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:16,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:16,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:16,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:16,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268493888] [2023-12-16 07:30:16,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268493888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:16,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:16,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:16,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853312928] [2023-12-16 07:30:16,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:16,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:16,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:16,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:16,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:16,389 INFO L87 Difference]: Start difference. First operand 2392 states and 4352 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:16,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:16,705 INFO L93 Difference]: Finished difference Result 2712 states and 4830 transitions. [2023-12-16 07:30:16,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:16,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:16,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:16,717 INFO L225 Difference]: With dead ends: 2712 [2023-12-16 07:30:16,717 INFO L226 Difference]: Without dead ends: 2450 [2023-12-16 07:30:16,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:16,721 INFO L413 NwaCegarLoop]: 4078 mSDtfsCounter, 4235 mSDsluCounter, 8098 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4246 SdHoareTripleChecker+Valid, 12176 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:16,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4246 Valid, 12176 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:16,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2023-12-16 07:30:16,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2450. [2023-12-16 07:30:16,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2400 states have (on average 1.8166666666666667) internal successors, (4360), 2403 states have internal predecessors, (4360), 31 states have call successors, (31), 16 states have call predecessors, (31), 17 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-16 07:30:16,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 4423 transitions. [2023-12-16 07:30:16,793 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 4423 transitions. Word has length 71 [2023-12-16 07:30:16,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:16,794 INFO L495 AbstractCegarLoop]: Abstraction has 2450 states and 4423 transitions. [2023-12-16 07:30:16,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:16,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 4423 transitions. [2023-12-16 07:30:16,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:16,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:16,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:16,807 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 07:30:17,008 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 07:30:17,008 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:17,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:17,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1938761061, now seen corresponding path program 1 times [2023-12-16 07:30:17,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:17,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705995248] [2023-12-16 07:30:17,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:17,010 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 07:30:17,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:17,011 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:17,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:30:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:17,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:17,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:17,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:17,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:17,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:17,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705995248] [2023-12-16 07:30:17,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705995248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:17,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:17,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:17,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105343320] [2023-12-16 07:30:17,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:17,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:17,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:17,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:17,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:17,138 INFO L87 Difference]: Start difference. First operand 2450 states and 4423 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:17,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:17,439 INFO L93 Difference]: Finished difference Result 2828 states and 4972 transitions. [2023-12-16 07:30:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:17,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:17,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:17,449 INFO L225 Difference]: With dead ends: 2828 [2023-12-16 07:30:17,449 INFO L226 Difference]: Without dead ends: 2508 [2023-12-16 07:30:17,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:17,451 INFO L413 NwaCegarLoop]: 4075 mSDtfsCounter, 4228 mSDsluCounter, 8094 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4239 SdHoareTripleChecker+Valid, 12169 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:17,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4239 Valid, 12169 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:17,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2023-12-16 07:30:17,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2508. [2023-12-16 07:30:17,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2508 states, 2452 states have (on average 1.8038336052202284) internal successors, (4423), 2455 states have internal predecessors, (4423), 33 states have call successors, (33), 20 states have call predecessors, (33), 21 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 07:30:17,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 4490 transitions. [2023-12-16 07:30:17,510 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 4490 transitions. Word has length 71 [2023-12-16 07:30:17,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:17,510 INFO L495 AbstractCegarLoop]: Abstraction has 2508 states and 4490 transitions. [2023-12-16 07:30:17,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:17,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 4490 transitions. [2023-12-16 07:30:17,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:17,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:17,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:17,522 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 (7)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:17,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:17,723 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:17,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:17,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1997131617, now seen corresponding path program 1 times [2023-12-16 07:30:17,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:17,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515708642] [2023-12-16 07:30:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:17,725 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 07:30:17,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:17,726 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:17,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 07:30:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:17,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:17,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:17,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:17,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:17,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:17,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515708642] [2023-12-16 07:30:17,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515708642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:17,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:17,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:17,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571304665] [2023-12-16 07:30:17,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:17,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:17,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:17,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:17,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:17,846 INFO L87 Difference]: Start difference. First operand 2508 states and 4490 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:18,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:18,160 INFO L93 Difference]: Finished difference Result 2944 states and 5106 transitions. [2023-12-16 07:30:18,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:18,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:18,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:18,171 INFO L225 Difference]: With dead ends: 2944 [2023-12-16 07:30:18,171 INFO L226 Difference]: Without dead ends: 2566 [2023-12-16 07:30:18,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:18,173 INFO L413 NwaCegarLoop]: 4072 mSDtfsCounter, 4221 mSDsluCounter, 8090 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4232 SdHoareTripleChecker+Valid, 12162 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:18,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4232 Valid, 12162 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:18,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2023-12-16 07:30:18,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 2566. [2023-12-16 07:30:18,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2504 states have (on average 1.7899361022364217) internal successors, (4482), 2507 states have internal predecessors, (4482), 35 states have call successors, (35), 24 states have call predecessors, (35), 25 states have return successors, (36), 35 states have call predecessors, (36), 35 states have call successors, (36) [2023-12-16 07:30:18,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 4553 transitions. [2023-12-16 07:30:18,234 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 4553 transitions. Word has length 71 [2023-12-16 07:30:18,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:18,234 INFO L495 AbstractCegarLoop]: Abstraction has 2566 states and 4553 transitions. [2023-12-16 07:30:18,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:18,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 4553 transitions. [2023-12-16 07:30:18,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:18,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:18,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:18,244 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 (8)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:18,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 07:30:18,445 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:18,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:18,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1834665732, now seen corresponding path program 1 times [2023-12-16 07:30:18,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:18,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257717347] [2023-12-16 07:30:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:18,446 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 07:30:18,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:18,448 INFO L229 MonitoredProcess]: Starting monitored process 9 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 07:30:18,481 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 (9)] Waiting until timeout for monitored process [2023-12-16 07:30:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:18,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:18,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:18,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:18,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:18,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:18,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257717347] [2023-12-16 07:30:18,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257717347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:18,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:18,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:18,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517875240] [2023-12-16 07:30:18,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:18,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:18,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:18,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:18,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:18,544 INFO L87 Difference]: Start difference. First operand 2566 states and 4553 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:18,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:18,653 INFO L93 Difference]: Finished difference Result 3045 states and 5211 transitions. [2023-12-16 07:30:18,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:18,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:18,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:18,663 INFO L225 Difference]: With dead ends: 3045 [2023-12-16 07:30:18,663 INFO L226 Difference]: Without dead ends: 2610 [2023-12-16 07:30:18,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:18,666 INFO L413 NwaCegarLoop]: 4135 mSDtfsCounter, 29 mSDsluCounter, 8263 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12398 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:18,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12398 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:18,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2610 states. [2023-12-16 07:30:18,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2610 to 2570. [2023-12-16 07:30:18,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 2508 states have (on average 1.7862838915470494) internal successors, (4480), 2511 states have internal predecessors, (4480), 35 states have call successors, (35), 24 states have call predecessors, (35), 25 states have return successors, (36), 35 states have call predecessors, (36), 35 states have call successors, (36) [2023-12-16 07:30:18,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 4551 transitions. [2023-12-16 07:30:18,732 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 4551 transitions. Word has length 71 [2023-12-16 07:30:18,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:18,732 INFO L495 AbstractCegarLoop]: Abstraction has 2570 states and 4551 transitions. [2023-12-16 07:30:18,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:18,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 4551 transitions. [2023-12-16 07:30:18,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:18,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:18,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:18,740 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:18,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 07:30:18,938 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:18,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:18,938 INFO L85 PathProgramCache]: Analyzing trace with hash 410913722, now seen corresponding path program 1 times [2023-12-16 07:30:18,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:18,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524337449] [2023-12-16 07:30:18,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:18,939 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 07:30:18,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:18,940 INFO L229 MonitoredProcess]: Starting monitored process 10 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 07:30:18,944 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 (10)] Waiting until timeout for monitored process [2023-12-16 07:30:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:19,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:19,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:19,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:19,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:19,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:19,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524337449] [2023-12-16 07:30:19,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524337449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:19,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:19,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:19,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567597424] [2023-12-16 07:30:19,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:19,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:19,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:19,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:19,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:19,041 INFO L87 Difference]: Start difference. First operand 2570 states and 4551 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:19,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:19,202 INFO L93 Difference]: Finished difference Result 3041 states and 5191 transitions. [2023-12-16 07:30:19,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:19,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:19,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:19,221 INFO L225 Difference]: With dead ends: 3041 [2023-12-16 07:30:19,221 INFO L226 Difference]: Without dead ends: 2602 [2023-12-16 07:30:19,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:19,223 INFO L413 NwaCegarLoop]: 4135 mSDtfsCounter, 20 mSDsluCounter, 8264 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12399 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:19,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12399 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:19,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2023-12-16 07:30:19,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2574. [2023-12-16 07:30:19,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2574 states, 2512 states have (on average 1.7826433121019107) internal successors, (4478), 2515 states have internal predecessors, (4478), 35 states have call successors, (35), 24 states have call predecessors, (35), 25 states have return successors, (36), 35 states have call predecessors, (36), 35 states have call successors, (36) [2023-12-16 07:30:19,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 4549 transitions. [2023-12-16 07:30:19,289 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 4549 transitions. Word has length 71 [2023-12-16 07:30:19,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:19,289 INFO L495 AbstractCegarLoop]: Abstraction has 2574 states and 4549 transitions. [2023-12-16 07:30:19,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:19,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 4549 transitions. [2023-12-16 07:30:19,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:19,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:19,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:19,302 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 (10)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:19,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 07:30:19,496 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:19,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1434453444, now seen corresponding path program 1 times [2023-12-16 07:30:19,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:19,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238817116] [2023-12-16 07:30:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:19,497 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 07:30:19,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:19,498 INFO L229 MonitoredProcess]: Starting monitored process 11 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 07:30:19,499 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 (11)] Waiting until timeout for monitored process [2023-12-16 07:30:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:19,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:19,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:19,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:19,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:19,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238817116] [2023-12-16 07:30:19,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238817116] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:19,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:19,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:30:19,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026468518] [2023-12-16 07:30:19,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:19,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:19,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:19,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:19,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:19,625 INFO L87 Difference]: Start difference. First operand 2574 states and 4549 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:19,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:19,731 INFO L93 Difference]: Finished difference Result 3387 states and 5615 transitions. [2023-12-16 07:30:19,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:19,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:19,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:19,739 INFO L225 Difference]: With dead ends: 3387 [2023-12-16 07:30:19,739 INFO L226 Difference]: Without dead ends: 2944 [2023-12-16 07:30:19,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:19,741 INFO L413 NwaCegarLoop]: 4171 mSDtfsCounter, 4107 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 4327 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:19,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4107 Valid, 4327 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:19,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2023-12-16 07:30:19,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 2940. [2023-12-16 07:30:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2830 states have (on average 1.7272084805653711) internal successors, (4888), 2834 states have internal predecessors, (4888), 62 states have call successors, (62), 44 states have call predecessors, (62), 46 states have return successors, (64), 62 states have call predecessors, (64), 62 states have call successors, (64) [2023-12-16 07:30:19,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 5014 transitions. [2023-12-16 07:30:19,819 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 5014 transitions. Word has length 71 [2023-12-16 07:30:19,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:19,819 INFO L495 AbstractCegarLoop]: Abstraction has 2940 states and 5014 transitions. [2023-12-16 07:30:19,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:19,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 5014 transitions. [2023-12-16 07:30:19,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:19,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:19,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:19,824 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 (11)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:20,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 07:30:20,025 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:20,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:20,025 INFO L85 PathProgramCache]: Analyzing trace with hash -309193475, now seen corresponding path program 1 times [2023-12-16 07:30:20,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:20,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517709649] [2023-12-16 07:30:20,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:20,026 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 07:30:20,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:20,027 INFO L229 MonitoredProcess]: Starting monitored process 12 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 07:30:20,028 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 (12)] Waiting until timeout for monitored process [2023-12-16 07:30:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:20,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:20,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:20,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:20,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:20,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517709649] [2023-12-16 07:30:20,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517709649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:20,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:20,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:20,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599944039] [2023-12-16 07:30:20,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:20,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:20,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:20,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:20,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:20,121 INFO L87 Difference]: Start difference. First operand 2940 states and 5014 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:20,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:20,251 INFO L93 Difference]: Finished difference Result 3829 states and 6197 transitions. [2023-12-16 07:30:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:20,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:20,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:20,259 INFO L225 Difference]: With dead ends: 3829 [2023-12-16 07:30:20,259 INFO L226 Difference]: Without dead ends: 3020 [2023-12-16 07:30:20,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:20,262 INFO L413 NwaCegarLoop]: 4138 mSDtfsCounter, 11 mSDsluCounter, 8270 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12408 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:20,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12408 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:20,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2023-12-16 07:30:20,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2956. [2023-12-16 07:30:20,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 2846 states have (on average 1.7210119465917078) internal successors, (4898), 2850 states have internal predecessors, (4898), 62 states have call successors, (62), 44 states have call predecessors, (62), 46 states have return successors, (64), 62 states have call predecessors, (64), 62 states have call successors, (64) [2023-12-16 07:30:20,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 5024 transitions. [2023-12-16 07:30:20,346 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 5024 transitions. Word has length 71 [2023-12-16 07:30:20,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:20,347 INFO L495 AbstractCegarLoop]: Abstraction has 2956 states and 5024 transitions. [2023-12-16 07:30:20,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:20,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 5024 transitions. [2023-12-16 07:30:20,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:20,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:20,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:20,359 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 (12)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:20,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 07:30:20,552 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:20,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:20,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1741790523, now seen corresponding path program 1 times [2023-12-16 07:30:20,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:20,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077696385] [2023-12-16 07:30:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:20,553 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 07:30:20,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:20,554 INFO L229 MonitoredProcess]: Starting monitored process 13 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 07:30:20,556 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 (13)] Waiting until timeout for monitored process [2023-12-16 07:30:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:20,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:20,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:20,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:20,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:20,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:20,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077696385] [2023-12-16 07:30:20,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077696385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:20,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:20,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:20,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6847011] [2023-12-16 07:30:20,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:20,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:20,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:20,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:20,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:20,635 INFO L87 Difference]: Start difference. First operand 2956 states and 5024 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:20,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:20,738 INFO L93 Difference]: Finished difference Result 3789 states and 6118 transitions. [2023-12-16 07:30:20,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:20,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-16 07:30:20,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:20,744 INFO L225 Difference]: With dead ends: 3789 [2023-12-16 07:30:20,745 INFO L226 Difference]: Without dead ends: 2964 [2023-12-16 07:30:20,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:20,748 INFO L413 NwaCegarLoop]: 4135 mSDtfsCounter, 2 mSDsluCounter, 8265 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12400 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:20,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12400 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:20,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2023-12-16 07:30:20,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2960. [2023-12-16 07:30:20,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2960 states, 2850 states have (on average 1.7157894736842105) internal successors, (4890), 2854 states have internal predecessors, (4890), 62 states have call successors, (62), 44 states have call predecessors, (62), 46 states have return successors, (64), 62 states have call predecessors, (64), 62 states have call successors, (64) [2023-12-16 07:30:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2960 states to 2960 states and 5016 transitions. [2023-12-16 07:30:20,822 INFO L78 Accepts]: Start accepts. Automaton has 2960 states and 5016 transitions. Word has length 71 [2023-12-16 07:30:20,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:20,822 INFO L495 AbstractCegarLoop]: Abstraction has 2960 states and 5016 transitions. [2023-12-16 07:30:20,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2960 states and 5016 transitions. [2023-12-16 07:30:20,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 07:30:20,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:20,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:20,827 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 (13)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:21,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 07:30:21,027 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:21,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:21,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1166973379, now seen corresponding path program 1 times [2023-12-16 07:30:21,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:21,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943466205] [2023-12-16 07:30:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:21,029 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 07:30:21,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:21,030 INFO L229 MonitoredProcess]: Starting monitored process 14 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 07:30:21,032 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 (14)] Waiting until timeout for monitored process [2023-12-16 07:30:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:21,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:21,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:21,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:21,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:21,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:21,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943466205] [2023-12-16 07:30:21,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943466205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:21,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:21,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:30:21,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022108697] [2023-12-16 07:30:21,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:21,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:21,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:21,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:21,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:21,191 INFO L87 Difference]: Start difference. First operand 2960 states and 5016 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:30:21,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:21,331 INFO L93 Difference]: Finished difference Result 4581 states and 7080 transitions. [2023-12-16 07:30:21,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:21,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 71 [2023-12-16 07:30:21,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:21,341 INFO L225 Difference]: With dead ends: 4581 [2023-12-16 07:30:21,341 INFO L226 Difference]: Without dead ends: 3752 [2023-12-16 07:30:21,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:21,344 INFO L413 NwaCegarLoop]: 4134 mSDtfsCounter, 4074 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4074 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:21,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4074 Valid, 4288 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:21,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2023-12-16 07:30:21,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3748. [2023-12-16 07:30:21,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 3534 states have (on average 1.6236559139784945) internal successors, (5738), 3544 states have internal predecessors, (5738), 120 states have call successors, (120), 88 states have call predecessors, (120), 92 states have return successors, (124), 116 states have call predecessors, (124), 120 states have call successors, (124) [2023-12-16 07:30:21,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 5982 transitions. [2023-12-16 07:30:21,548 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 5982 transitions. Word has length 71 [2023-12-16 07:30:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:21,549 INFO L495 AbstractCegarLoop]: Abstraction has 3748 states and 5982 transitions. [2023-12-16 07:30:21,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:30:21,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 5982 transitions. [2023-12-16 07:30:21,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 07:30:21,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:21,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:21,560 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 (14)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:21,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 07:30:21,758 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:21,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash 97150309, now seen corresponding path program 1 times [2023-12-16 07:30:21,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:21,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609843806] [2023-12-16 07:30:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:21,760 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 07:30:21,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:21,761 INFO L229 MonitoredProcess]: Starting monitored process 15 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 07:30:21,789 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 (15)] Waiting until timeout for monitored process [2023-12-16 07:30:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:21,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:30:21,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:21,987 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 07:30:21,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:21,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:21,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609843806] [2023-12-16 07:30:21,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609843806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:21,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:21,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:21,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587226194] [2023-12-16 07:30:21,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:21,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:21,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:21,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:21,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:21,990 INFO L87 Difference]: Start difference. First operand 3748 states and 5982 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:30:22,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:22,448 INFO L93 Difference]: Finished difference Result 7022 states and 10059 transitions. [2023-12-16 07:30:22,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:22,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 115 [2023-12-16 07:30:22,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:22,465 INFO L225 Difference]: With dead ends: 7022 [2023-12-16 07:30:22,465 INFO L226 Difference]: Without dead ends: 5406 [2023-12-16 07:30:22,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:22,473 INFO L413 NwaCegarLoop]: 4132 mSDtfsCounter, 4179 mSDsluCounter, 4192 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4185 SdHoareTripleChecker+Valid, 8324 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:22,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4185 Valid, 8324 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:22,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2023-12-16 07:30:22,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 5404. [2023-12-16 07:30:22,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 4987 states have (on average 1.507720072187688) internal successors, (7519), 5014 states have internal predecessors, (7519), 223 states have call successors, (223), 168 states have call predecessors, (223), 192 states have return successors, (271), 223 states have call predecessors, (271), 223 states have call successors, (271) [2023-12-16 07:30:22,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 8013 transitions. [2023-12-16 07:30:22,741 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 8013 transitions. Word has length 115 [2023-12-16 07:30:22,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:22,741 INFO L495 AbstractCegarLoop]: Abstraction has 5404 states and 8013 transitions. [2023-12-16 07:30:22,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:30:22,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 8013 transitions. [2023-12-16 07:30:22,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 07:30:22,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:22,745 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:22,753 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:22,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 07:30:22,950 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:22,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:22,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1876015069, now seen corresponding path program 1 times [2023-12-16 07:30:22,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:22,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503986062] [2023-12-16 07:30:22,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:22,951 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 07:30:22,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:22,952 INFO L229 MonitoredProcess]: Starting monitored process 16 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 07:30:22,956 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 (16)] Waiting until timeout for monitored process [2023-12-16 07:30:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:23,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:23,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:23,046 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 07:30:23,046 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:23,047 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:23,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503986062] [2023-12-16 07:30:23,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503986062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:23,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:23,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:23,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635506384] [2023-12-16 07:30:23,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:23,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:23,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:23,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:23,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:23,048 INFO L87 Difference]: Start difference. First operand 5404 states and 8013 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:30:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:23,229 INFO L93 Difference]: Finished difference Result 8670 states and 12038 transitions. [2023-12-16 07:30:23,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:23,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 115 [2023-12-16 07:30:23,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:23,243 INFO L225 Difference]: With dead ends: 8670 [2023-12-16 07:30:23,243 INFO L226 Difference]: Without dead ends: 5398 [2023-12-16 07:30:23,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:23,253 INFO L413 NwaCegarLoop]: 4134 mSDtfsCounter, 188 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 8091 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:23,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 8091 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:23,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5398 states. [2023-12-16 07:30:23,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5398 to 5398. [2023-12-16 07:30:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5398 states, 4984 states have (on average 1.5074237560192616) internal successors, (7513), 5010 states have internal predecessors, (7513), 220 states have call successors, (220), 168 states have call predecessors, (220), 192 states have return successors, (268), 220 states have call predecessors, (268), 220 states have call successors, (268) [2023-12-16 07:30:23,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5398 states to 5398 states and 8001 transitions. [2023-12-16 07:30:23,564 INFO L78 Accepts]: Start accepts. Automaton has 5398 states and 8001 transitions. Word has length 115 [2023-12-16 07:30:23,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:23,565 INFO L495 AbstractCegarLoop]: Abstraction has 5398 states and 8001 transitions. [2023-12-16 07:30:23,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:30:23,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5398 states and 8001 transitions. [2023-12-16 07:30:23,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 07:30:23,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:23,569 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:23,577 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 (16)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:23,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 07:30:23,774 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:23,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:23,775 INFO L85 PathProgramCache]: Analyzing trace with hash 631500608, now seen corresponding path program 1 times [2023-12-16 07:30:23,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:23,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042671608] [2023-12-16 07:30:23,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:23,775 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 07:30:23,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:23,777 INFO L229 MonitoredProcess]: Starting monitored process 17 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 07:30:23,788 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 (17)] Waiting until timeout for monitored process [2023-12-16 07:30:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:23,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:30:23,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:23,998 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 07:30:23,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:23,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:23,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042671608] [2023-12-16 07:30:23,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042671608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:23,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:23,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:23,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567514452] [2023-12-16 07:30:23,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:24,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:24,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:24,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:24,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:24,000 INFO L87 Difference]: Start difference. First operand 5398 states and 8001 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:30:24,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:24,424 INFO L93 Difference]: Finished difference Result 11971 states and 16104 transitions. [2023-12-16 07:30:24,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:24,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 117 [2023-12-16 07:30:24,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:24,451 INFO L225 Difference]: With dead ends: 11971 [2023-12-16 07:30:24,451 INFO L226 Difference]: Without dead ends: 8705 [2023-12-16 07:30:24,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:24,462 INFO L413 NwaCegarLoop]: 4121 mSDtfsCounter, 4177 mSDsluCounter, 4174 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4183 SdHoareTripleChecker+Valid, 8295 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:24,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4183 Valid, 8295 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:24,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8705 states. [2023-12-16 07:30:24,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8705 to 8591. [2023-12-16 07:30:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8591 states, 7746 states have (on average 1.4030467337980894) internal successors, (10868), 7825 states have internal predecessors, (10868), 423 states have call successors, (423), 320 states have call predecessors, (423), 420 states have return successors, (603), 447 states have call predecessors, (603), 423 states have call successors, (603) [2023-12-16 07:30:24,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8591 states to 8591 states and 11894 transitions. [2023-12-16 07:30:24,803 INFO L78 Accepts]: Start accepts. Automaton has 8591 states and 11894 transitions. Word has length 117 [2023-12-16 07:30:24,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:24,803 INFO L495 AbstractCegarLoop]: Abstraction has 8591 states and 11894 transitions. [2023-12-16 07:30:24,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:30:24,804 INFO L276 IsEmpty]: Start isEmpty. Operand 8591 states and 11894 transitions. [2023-12-16 07:30:24,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 07:30:24,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:24,810 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:24,817 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 (17)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:25,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 07:30:25,016 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:25,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:25,016 INFO L85 PathProgramCache]: Analyzing trace with hash -407083966, now seen corresponding path program 1 times [2023-12-16 07:30:25,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:25,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729999053] [2023-12-16 07:30:25,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:25,017 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 07:30:25,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:25,018 INFO L229 MonitoredProcess]: Starting monitored process 18 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 07:30:25,144 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 (18)] Waiting until timeout for monitored process [2023-12-16 07:30:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:25,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:25,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:25,206 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 07:30:25,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:25,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:25,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729999053] [2023-12-16 07:30:25,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729999053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:25,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:25,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:25,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430205716] [2023-12-16 07:30:25,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:25,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:25,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:25,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:25,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:25,208 INFO L87 Difference]: Start difference. First operand 8591 states and 11894 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:30:25,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:25,462 INFO L93 Difference]: Finished difference Result 13629 states and 18083 transitions. [2023-12-16 07:30:25,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:25,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 117 [2023-12-16 07:30:25,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:25,474 INFO L225 Difference]: With dead ends: 13629 [2023-12-16 07:30:25,475 INFO L226 Difference]: Without dead ends: 7170 [2023-12-16 07:30:25,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:25,488 INFO L413 NwaCegarLoop]: 4133 mSDtfsCounter, 186 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 8090 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:25,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 8090 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:25,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2023-12-16 07:30:25,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7170. [2023-12-16 07:30:25,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 6516 states have (on average 1.4395334561080417) internal successors, (9380), 6582 states have internal predecessors, (9380), 320 states have call successors, (320), 244 states have call predecessors, (320), 332 states have return successors, (464), 344 states have call predecessors, (464), 320 states have call successors, (464) [2023-12-16 07:30:25,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10164 transitions. [2023-12-16 07:30:25,769 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10164 transitions. Word has length 117 [2023-12-16 07:30:25,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:25,770 INFO L495 AbstractCegarLoop]: Abstraction has 7170 states and 10164 transitions. [2023-12-16 07:30:25,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:30:25,770 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10164 transitions. [2023-12-16 07:30:25,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 07:30:25,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:25,773 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:25,782 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 (18)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:25,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 07:30:25,978 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:25,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:25,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1456944677, now seen corresponding path program 1 times [2023-12-16 07:30:25,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:25,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188038534] [2023-12-16 07:30:25,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:25,979 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 07:30:25,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:25,980 INFO L229 MonitoredProcess]: Starting monitored process 19 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 07:30:25,981 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 (19)] Waiting until timeout for monitored process [2023-12-16 07:30:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:26,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:30:26,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:26,186 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 07:30:26,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:26,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:26,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188038534] [2023-12-16 07:30:26,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188038534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:26,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:26,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:26,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506249196] [2023-12-16 07:30:26,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:26,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:26,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:26,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:26,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:26,188 INFO L87 Difference]: Start difference. First operand 7170 states and 10164 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:30:26,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:26,786 INFO L93 Difference]: Finished difference Result 16302 states and 21413 transitions. [2023-12-16 07:30:26,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:26,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 119 [2023-12-16 07:30:26,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:26,809 INFO L225 Difference]: With dead ends: 16302 [2023-12-16 07:30:26,809 INFO L226 Difference]: Without dead ends: 11264 [2023-12-16 07:30:26,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:26,822 INFO L413 NwaCegarLoop]: 4137 mSDtfsCounter, 4159 mSDsluCounter, 4175 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 8312 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:26,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 8312 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:26,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2023-12-16 07:30:27,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 11262. [2023-12-16 07:30:27,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11262 states, 10053 states have (on average 1.3628767532079975) internal successors, (13701), 10184 states have internal predecessors, (13701), 591 states have call successors, (591), 440 states have call predecessors, (591), 616 states have return successors, (891), 639 states have call predecessors, (891), 591 states have call successors, (891) [2023-12-16 07:30:27,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11262 states to 11262 states and 15183 transitions. [2023-12-16 07:30:27,291 INFO L78 Accepts]: Start accepts. Automaton has 11262 states and 15183 transitions. Word has length 119 [2023-12-16 07:30:27,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:27,291 INFO L495 AbstractCegarLoop]: Abstraction has 11262 states and 15183 transitions. [2023-12-16 07:30:27,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:30:27,291 INFO L276 IsEmpty]: Start isEmpty. Operand 11262 states and 15183 transitions. [2023-12-16 07:30:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 07:30:27,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:27,297 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:27,307 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 (19)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:27,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 07:30:27,501 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:27,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:27,502 INFO L85 PathProgramCache]: Analyzing trace with hash -674406045, now seen corresponding path program 1 times [2023-12-16 07:30:27,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:27,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725890666] [2023-12-16 07:30:27,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:27,502 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 07:30:27,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:27,504 INFO L229 MonitoredProcess]: Starting monitored process 20 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 07:30:27,532 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 (20)] Waiting until timeout for monitored process [2023-12-16 07:30:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:27,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:27,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 07:30:27,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:27,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:27,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725890666] [2023-12-16 07:30:27,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725890666] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:27,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:27,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:27,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496956991] [2023-12-16 07:30:27,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:27,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:27,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:27,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:27,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:27,614 INFO L87 Difference]: Start difference. First operand 11262 states and 15183 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:30:28,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:28,238 INFO L93 Difference]: Finished difference Result 20388 states and 26384 transitions. [2023-12-16 07:30:28,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:28,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 119 [2023-12-16 07:30:28,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:28,267 INFO L225 Difference]: With dead ends: 20388 [2023-12-16 07:30:28,267 INFO L226 Difference]: Without dead ends: 11258 [2023-12-16 07:30:28,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:28,286 INFO L413 NwaCegarLoop]: 4132 mSDtfsCounter, 184 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 8089 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:28,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 8089 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:28,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2023-12-16 07:30:28,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 11258. [2023-12-16 07:30:28,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11258 states, 10052 states have (on average 1.3628133704735377) internal successors, (13699), 10182 states have internal predecessors, (13699), 588 states have call successors, (588), 440 states have call predecessors, (588), 616 states have return successors, (888), 636 states have call predecessors, (888), 588 states have call successors, (888) [2023-12-16 07:30:28,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11258 states to 11258 states and 15175 transitions. [2023-12-16 07:30:28,729 INFO L78 Accepts]: Start accepts. Automaton has 11258 states and 15175 transitions. Word has length 119 [2023-12-16 07:30:28,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:28,730 INFO L495 AbstractCegarLoop]: Abstraction has 11258 states and 15175 transitions. [2023-12-16 07:30:28,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:30:28,730 INFO L276 IsEmpty]: Start isEmpty. Operand 11258 states and 15175 transitions. [2023-12-16 07:30:28,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 07:30:28,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:28,736 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:28,744 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 (20)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:28,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 07:30:28,940 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:28,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:28,941 INFO L85 PathProgramCache]: Analyzing trace with hash -326996288, now seen corresponding path program 1 times [2023-12-16 07:30:28,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:28,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834224200] [2023-12-16 07:30:28,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:28,941 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 07:30:28,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:28,943 INFO L229 MonitoredProcess]: Starting monitored process 21 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 07:30:28,956 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 (21)] Waiting until timeout for monitored process [2023-12-16 07:30:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:29,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:29,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:29,066 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 07:30:29,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:29,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:29,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834224200] [2023-12-16 07:30:29,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834224200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:29,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:29,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:29,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023236178] [2023-12-16 07:30:29,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:29,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:29,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:29,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:29,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:29,067 INFO L87 Difference]: Start difference. First operand 11258 states and 15175 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 07:30:29,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:29,938 INFO L93 Difference]: Finished difference Result 27043 states and 34762 transitions. [2023-12-16 07:30:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:29,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 121 [2023-12-16 07:30:29,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:29,988 INFO L225 Difference]: With dead ends: 27043 [2023-12-16 07:30:29,988 INFO L226 Difference]: Without dead ends: 14630 [2023-12-16 07:30:30,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:30,020 INFO L413 NwaCegarLoop]: 4278 mSDtfsCounter, 150 mSDsluCounter, 4125 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 8403 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:30,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 8403 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:30,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14630 states. [2023-12-16 07:30:30,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14630 to 14630. [2023-12-16 07:30:30,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14630 states, 12968 states have (on average 1.3294262800740284) internal successors, (17240), 13126 states have internal predecessors, (17240), 832 states have call successors, (832), 612 states have call predecessors, (832), 828 states have return successors, (1266), 892 states have call predecessors, (1266), 832 states have call successors, (1266) [2023-12-16 07:30:30,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14630 states to 14630 states and 19338 transitions. [2023-12-16 07:30:30,713 INFO L78 Accepts]: Start accepts. Automaton has 14630 states and 19338 transitions. Word has length 121 [2023-12-16 07:30:30,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:30,713 INFO L495 AbstractCegarLoop]: Abstraction has 14630 states and 19338 transitions. [2023-12-16 07:30:30,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 07:30:30,714 INFO L276 IsEmpty]: Start isEmpty. Operand 14630 states and 19338 transitions. [2023-12-16 07:30:30,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:30:30,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:30,725 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:30,730 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 (21)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:30,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 07:30:30,930 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:30,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:30,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2105980744, now seen corresponding path program 1 times [2023-12-16 07:30:30,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:30,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480917478] [2023-12-16 07:30:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:30,931 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 07:30:30,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:30,932 INFO L229 MonitoredProcess]: Starting monitored process 22 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 07:30:30,960 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 (22)] Waiting until timeout for monitored process [2023-12-16 07:30:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:31,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:31,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 07:30:31,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:31,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480917478] [2023-12-16 07:30:31,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480917478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:31,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:31,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:30:31,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032306863] [2023-12-16 07:30:31,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:31,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:31,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:31,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:31,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:31,165 INFO L87 Difference]: Start difference. First operand 14630 states and 19338 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:30:31,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:31,923 INFO L93 Difference]: Finished difference Result 30571 states and 39056 transitions. [2023-12-16 07:30:31,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:31,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 152 [2023-12-16 07:30:31,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:31,961 INFO L225 Difference]: With dead ends: 30571 [2023-12-16 07:30:31,962 INFO L226 Difference]: Without dead ends: 18072 [2023-12-16 07:30:31,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:31,983 INFO L413 NwaCegarLoop]: 4130 mSDtfsCounter, 4042 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4042 SdHoareTripleChecker+Valid, 4286 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:31,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4042 Valid, 4286 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:31,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18072 states. [2023-12-16 07:30:32,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18072 to 18036. [2023-12-16 07:30:32,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18036 states, 15910 states have (on average 1.3029541169076053) internal successors, (20730), 16100 states have internal predecessors, (20730), 1076 states have call successors, (1076), 784 states have call predecessors, (1076), 1048 states have return successors, (1614), 1152 states have call predecessors, (1614), 1076 states have call successors, (1614) [2023-12-16 07:30:32,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18036 states to 18036 states and 23420 transitions. [2023-12-16 07:30:32,783 INFO L78 Accepts]: Start accepts. Automaton has 18036 states and 23420 transitions. Word has length 152 [2023-12-16 07:30:32,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:32,784 INFO L495 AbstractCegarLoop]: Abstraction has 18036 states and 23420 transitions. [2023-12-16 07:30:32,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:30:32,784 INFO L276 IsEmpty]: Start isEmpty. Operand 18036 states and 23420 transitions. [2023-12-16 07:30:32,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-16 07:30:32,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:32,802 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:32,809 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 (22)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:33,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 07:30:33,007 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:33,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:33,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1996010156, now seen corresponding path program 1 times [2023-12-16 07:30:33,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:33,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009182955] [2023-12-16 07:30:33,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:33,008 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 07:30:33,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:33,009 INFO L229 MonitoredProcess]: Starting monitored process 23 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 07:30:33,020 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 (23)] Waiting until timeout for monitored process [2023-12-16 07:30:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:33,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:33,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:33,201 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 07:30:33,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:33,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:33,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009182955] [2023-12-16 07:30:33,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009182955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:33,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:33,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:33,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196509959] [2023-12-16 07:30:33,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:33,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:33,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:33,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:33,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:33,204 INFO L87 Difference]: Start difference. First operand 18036 states and 23420 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 07:30:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:34,195 INFO L93 Difference]: Finished difference Result 34156 states and 43239 transitions. [2023-12-16 07:30:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:34,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 173 [2023-12-16 07:30:34,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:34,231 INFO L225 Difference]: With dead ends: 34156 [2023-12-16 07:30:34,232 INFO L226 Difference]: Without dead ends: 18252 [2023-12-16 07:30:34,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:34,255 INFO L413 NwaCegarLoop]: 4095 mSDtfsCounter, 4179 mSDsluCounter, 4158 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4185 SdHoareTripleChecker+Valid, 8253 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:34,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4185 Valid, 8253 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:34,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18252 states. [2023-12-16 07:30:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18252 to 18252. [2023-12-16 07:30:35,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18252 states, 16094 states have (on average 1.2925313781533492) internal successors, (20802), 16300 states have internal predecessors, (20802), 1076 states have call successors, (1076), 784 states have call predecessors, (1076), 1080 states have return successors, (1482), 1168 states have call predecessors, (1482), 1076 states have call successors, (1482) [2023-12-16 07:30:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18252 states to 18252 states and 23360 transitions. [2023-12-16 07:30:35,101 INFO L78 Accepts]: Start accepts. Automaton has 18252 states and 23360 transitions. Word has length 173 [2023-12-16 07:30:35,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:35,101 INFO L495 AbstractCegarLoop]: Abstraction has 18252 states and 23360 transitions. [2023-12-16 07:30:35,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 07:30:35,101 INFO L276 IsEmpty]: Start isEmpty. Operand 18252 states and 23360 transitions. [2023-12-16 07:30:35,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 07:30:35,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:35,115 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:35,120 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 (23)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:35,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 07:30:35,320 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:35,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:35,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1175112633, now seen corresponding path program 1 times [2023-12-16 07:30:35,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:35,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802156893] [2023-12-16 07:30:35,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:35,321 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 07:30:35,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:35,322 INFO L229 MonitoredProcess]: Starting monitored process 24 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 07:30:35,324 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 (24)] Waiting until timeout for monitored process [2023-12-16 07:30:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:35,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:35,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 07:30:35,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:35,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:35,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802156893] [2023-12-16 07:30:35,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802156893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:35,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:35,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:35,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964619036] [2023-12-16 07:30:35,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:35,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:35,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:35,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:35,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:35,469 INFO L87 Difference]: Start difference. First operand 18252 states and 23360 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 07:30:36,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:36,067 INFO L93 Difference]: Finished difference Result 28368 states and 35652 transitions. [2023-12-16 07:30:36,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:36,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 174 [2023-12-16 07:30:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:36,098 INFO L225 Difference]: With dead ends: 28368 [2023-12-16 07:30:36,098 INFO L226 Difference]: Without dead ends: 15634 [2023-12-16 07:30:36,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:36,118 INFO L413 NwaCegarLoop]: 4267 mSDtfsCounter, 143 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 8393 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:36,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 8393 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:36,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15634 states. [2023-12-16 07:30:36,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15634 to 15632. [2023-12-16 07:30:36,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15632 states, 13822 states have (on average 1.3080596151063522) internal successors, (18080), 14002 states have internal predecessors, (18080), 892 states have call successors, (892), 648 states have call predecessors, (892), 916 states have return successors, (1258), 982 states have call predecessors, (1258), 892 states have call successors, (1258) [2023-12-16 07:30:36,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15632 states to 15632 states and 20230 transitions. [2023-12-16 07:30:36,783 INFO L78 Accepts]: Start accepts. Automaton has 15632 states and 20230 transitions. Word has length 174 [2023-12-16 07:30:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:36,783 INFO L495 AbstractCegarLoop]: Abstraction has 15632 states and 20230 transitions. [2023-12-16 07:30:36,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 07:30:36,784 INFO L276 IsEmpty]: Start isEmpty. Operand 15632 states and 20230 transitions. [2023-12-16 07:30:36,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-12-16 07:30:36,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:36,795 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:36,801 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 (24)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:37,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 07:30:37,000 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:37,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:37,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1060457618, now seen corresponding path program 1 times [2023-12-16 07:30:37,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:37,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777161012] [2023-12-16 07:30:37,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:37,001 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 07:30:37,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:37,002 INFO L229 MonitoredProcess]: Starting monitored process 25 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 07:30:37,003 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 (25)] Waiting until timeout for monitored process [2023-12-16 07:30:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:37,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:37,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 07:30:37,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:37,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:37,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777161012] [2023-12-16 07:30:37,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777161012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:37,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:37,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:37,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771513547] [2023-12-16 07:30:37,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:37,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:37,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:37,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:37,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:37,179 INFO L87 Difference]: Start difference. First operand 15632 states and 20230 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 07:30:37,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:37,827 INFO L93 Difference]: Finished difference Result 27172 states and 34208 transitions. [2023-12-16 07:30:37,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:37,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 208 [2023-12-16 07:30:37,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:37,853 INFO L225 Difference]: With dead ends: 27172 [2023-12-16 07:30:37,853 INFO L226 Difference]: Without dead ends: 15634 [2023-12-16 07:30:37,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:37,864 INFO L413 NwaCegarLoop]: 4269 mSDtfsCounter, 140 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 8395 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:37,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 8395 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:37,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15634 states. [2023-12-16 07:30:38,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15634 to 15632. [2023-12-16 07:30:38,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15632 states, 13822 states have (on average 1.3053103747648676) internal successors, (18042), 14002 states have internal predecessors, (18042), 892 states have call successors, (892), 648 states have call predecessors, (892), 916 states have return successors, (1240), 982 states have call predecessors, (1240), 892 states have call successors, (1240) [2023-12-16 07:30:38,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15632 states to 15632 states and 20174 transitions. [2023-12-16 07:30:38,619 INFO L78 Accepts]: Start accepts. Automaton has 15632 states and 20174 transitions. Word has length 208 [2023-12-16 07:30:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:38,619 INFO L495 AbstractCegarLoop]: Abstraction has 15632 states and 20174 transitions. [2023-12-16 07:30:38,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 07:30:38,619 INFO L276 IsEmpty]: Start isEmpty. Operand 15632 states and 20174 transitions. [2023-12-16 07:30:38,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 07:30:38,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:38,630 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:38,635 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 (25)] Ended with exit code 0 [2023-12-16 07:30:38,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 07:30:38,831 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:38,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:38,831 INFO L85 PathProgramCache]: Analyzing trace with hash 766286601, now seen corresponding path program 1 times [2023-12-16 07:30:38,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:38,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494270095] [2023-12-16 07:30:38,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:38,832 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 07:30:38,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:38,833 INFO L229 MonitoredProcess]: Starting monitored process 26 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 07:30:38,835 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 (26)] Waiting until timeout for monitored process [2023-12-16 07:30:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:38,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:30:38,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2023-12-16 07:30:39,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:39,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:39,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494270095] [2023-12-16 07:30:39,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494270095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:39,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:39,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:39,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214581696] [2023-12-16 07:30:39,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:39,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:39,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:39,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:39,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:39,112 INFO L87 Difference]: Start difference. First operand 15632 states and 20174 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 07:30:39,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:39,924 INFO L93 Difference]: Finished difference Result 29248 states and 37079 transitions. [2023-12-16 07:30:39,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:39,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 209 [2023-12-16 07:30:39,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:39,950 INFO L225 Difference]: With dead ends: 29248 [2023-12-16 07:30:39,951 INFO L226 Difference]: Without dead ends: 15746 [2023-12-16 07:30:39,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:39,967 INFO L413 NwaCegarLoop]: 4065 mSDtfsCounter, 4134 mSDsluCounter, 4030 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4142 SdHoareTripleChecker+Valid, 8095 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:39,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4142 Valid, 8095 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:30:39,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15746 states. [2023-12-16 07:30:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15746 to 15746. [2023-12-16 07:30:40,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15746 states, 14004 states have (on average 1.2642102256498144) internal successors, (17704), 14122 states have internal predecessors, (17704), 892 states have call successors, (892), 688 states have call predecessors, (892), 848 states have return successors, (1100), 936 states have call predecessors, (1100), 892 states have call successors, (1100) [2023-12-16 07:30:40,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15746 states to 15746 states and 19696 transitions. [2023-12-16 07:30:40,681 INFO L78 Accepts]: Start accepts. Automaton has 15746 states and 19696 transitions. Word has length 209 [2023-12-16 07:30:40,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:40,682 INFO L495 AbstractCegarLoop]: Abstraction has 15746 states and 19696 transitions. [2023-12-16 07:30:40,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 07:30:40,682 INFO L276 IsEmpty]: Start isEmpty. Operand 15746 states and 19696 transitions. [2023-12-16 07:30:40,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 07:30:40,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:40,696 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:40,700 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 (26)] Ended with exit code 0 [2023-12-16 07:30:40,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 07:30:40,899 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:40,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:40,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1785383358, now seen corresponding path program 1 times [2023-12-16 07:30:40,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:40,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648443372] [2023-12-16 07:30:40,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:40,900 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 07:30:40,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:40,901 INFO L229 MonitoredProcess]: Starting monitored process 27 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 07:30:40,902 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 (27)] Waiting until timeout for monitored process [2023-12-16 07:30:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:41,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:41,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-16 07:30:41,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:41,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:41,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648443372] [2023-12-16 07:30:41,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648443372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:41,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:41,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:30:41,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603697852] [2023-12-16 07:30:41,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:41,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:41,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:41,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:41,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:41,180 INFO L87 Difference]: Start difference. First operand 15746 states and 19696 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 07:30:41,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:41,968 INFO L93 Difference]: Finished difference Result 31225 states and 37550 transitions. [2023-12-16 07:30:41,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:41,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 239 [2023-12-16 07:30:41,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:41,995 INFO L225 Difference]: With dead ends: 31225 [2023-12-16 07:30:41,996 INFO L226 Difference]: Without dead ends: 17610 [2023-12-16 07:30:42,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:42,008 INFO L413 NwaCegarLoop]: 4163 mSDtfsCounter, 4008 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4008 SdHoareTripleChecker+Valid, 4316 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:42,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4008 Valid, 4316 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:42,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17610 states. [2023-12-16 07:30:42,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17610 to 17570. [2023-12-16 07:30:42,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17570 states, 15588 states have (on average 1.2465999486784707) internal successors, (19432), 15714 states have internal predecessors, (19432), 1028 states have call successors, (1028), 784 states have call predecessors, (1028), 952 states have return successors, (1244), 1072 states have call predecessors, (1244), 1028 states have call successors, (1244) [2023-12-16 07:30:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17570 states to 17570 states and 21704 transitions. [2023-12-16 07:30:42,863 INFO L78 Accepts]: Start accepts. Automaton has 17570 states and 21704 transitions. Word has length 239 [2023-12-16 07:30:42,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:42,864 INFO L495 AbstractCegarLoop]: Abstraction has 17570 states and 21704 transitions. [2023-12-16 07:30:42,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 07:30:42,864 INFO L276 IsEmpty]: Start isEmpty. Operand 17570 states and 21704 transitions. [2023-12-16 07:30:42,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-12-16 07:30:42,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:42,879 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:42,884 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 (27)] Ended with exit code 0 [2023-12-16 07:30:43,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 07:30:43,080 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:43,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash -883206684, now seen corresponding path program 1 times [2023-12-16 07:30:43,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:43,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672879891] [2023-12-16 07:30:43,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:43,081 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 07:30:43,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:43,082 INFO L229 MonitoredProcess]: Starting monitored process 28 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 07:30:43,084 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 (28)] Waiting until timeout for monitored process [2023-12-16 07:30:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:43,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:43,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-16 07:30:43,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:43,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:43,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672879891] [2023-12-16 07:30:43,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672879891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:43,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:43,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:43,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769822007] [2023-12-16 07:30:43,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:43,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:43,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:43,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:43,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:43,253 INFO L87 Difference]: Start difference. First operand 17570 states and 21704 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 07:30:43,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:43,620 INFO L93 Difference]: Finished difference Result 21830 states and 26571 transitions. [2023-12-16 07:30:43,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:43,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 242 [2023-12-16 07:30:43,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:43,630 INFO L225 Difference]: With dead ends: 21830 [2023-12-16 07:30:43,630 INFO L226 Difference]: Without dead ends: 5854 [2023-12-16 07:30:43,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:43,644 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 135 mSDsluCounter, 4098 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 8306 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:43,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 8306 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:43,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2023-12-16 07:30:43,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 5854. [2023-12-16 07:30:43,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5854 states, 5360 states have (on average 1.401865671641791) internal successors, (7514), 5380 states have internal predecessors, (7514), 280 states have call successors, (280), 196 states have call predecessors, (280), 212 states have return successors, (296), 278 states have call predecessors, (296), 280 states have call successors, (296) [2023-12-16 07:30:43,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5854 states to 5854 states and 8090 transitions. [2023-12-16 07:30:43,853 INFO L78 Accepts]: Start accepts. Automaton has 5854 states and 8090 transitions. Word has length 242 [2023-12-16 07:30:43,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:43,853 INFO L495 AbstractCegarLoop]: Abstraction has 5854 states and 8090 transitions. [2023-12-16 07:30:43,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 07:30:43,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5854 states and 8090 transitions. [2023-12-16 07:30:43,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-16 07:30:43,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:43,857 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:43,862 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 (28)] Ended with exit code 0 [2023-12-16 07:30:44,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 07:30:44,058 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:44,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:44,058 INFO L85 PathProgramCache]: Analyzing trace with hash -328346955, now seen corresponding path program 1 times [2023-12-16 07:30:44,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:44,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709560072] [2023-12-16 07:30:44,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:44,059 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 07:30:44,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:44,060 INFO L229 MonitoredProcess]: Starting monitored process 29 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 07:30:44,061 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 (29)] Waiting until timeout for monitored process [2023-12-16 07:30:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:44,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:44,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:44,250 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 07:30:44,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:44,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:44,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709560072] [2023-12-16 07:30:44,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709560072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:44,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:44,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:44,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081878747] [2023-12-16 07:30:44,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:44,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:44,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:44,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:44,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:44,252 INFO L87 Difference]: Start difference. First operand 5854 states and 8090 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 07:30:44,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:44,682 INFO L93 Difference]: Finished difference Result 10494 states and 13352 transitions. [2023-12-16 07:30:44,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:44,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 243 [2023-12-16 07:30:44,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:44,690 INFO L225 Difference]: With dead ends: 10494 [2023-12-16 07:30:44,690 INFO L226 Difference]: Without dead ends: 6328 [2023-12-16 07:30:44,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:44,695 INFO L413 NwaCegarLoop]: 4133 mSDtfsCounter, 4094 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4094 SdHoareTripleChecker+Valid, 4283 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:44,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4094 Valid, 4283 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:44,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2023-12-16 07:30:44,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 6295. [2023-12-16 07:30:44,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6295 states, 5741 states have (on average 1.3779829298031703) internal successors, (7911), 5763 states have internal predecessors, (7911), 314 states have call successors, (314), 220 states have call predecessors, (314), 238 states have return successors, (342), 312 states have call predecessors, (342), 314 states have call successors, (342) [2023-12-16 07:30:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6295 states to 6295 states and 8567 transitions. [2023-12-16 07:30:44,935 INFO L78 Accepts]: Start accepts. Automaton has 6295 states and 8567 transitions. Word has length 243 [2023-12-16 07:30:44,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:44,935 INFO L495 AbstractCegarLoop]: Abstraction has 6295 states and 8567 transitions. [2023-12-16 07:30:44,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 07:30:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6295 states and 8567 transitions. [2023-12-16 07:30:44,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-16 07:30:44,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:44,939 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:44,944 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 (29)] Ended with exit code 0 [2023-12-16 07:30:45,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 07:30:45,140 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:45,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:45,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1478273458, now seen corresponding path program 1 times [2023-12-16 07:30:45,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:45,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528383323] [2023-12-16 07:30:45,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:45,141 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 07:30:45,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:45,142 INFO L229 MonitoredProcess]: Starting monitored process 30 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 07:30:45,143 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 (30)] Waiting until timeout for monitored process [2023-12-16 07:30:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:45,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:45,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:45,350 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-16 07:30:45,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:45,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:45,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528383323] [2023-12-16 07:30:45,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528383323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:45,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:45,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:45,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404247754] [2023-12-16 07:30:45,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:45,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:45,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:45,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:45,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:45,353 INFO L87 Difference]: Start difference. First operand 6295 states and 8567 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 07:30:45,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:45,774 INFO L93 Difference]: Finished difference Result 11271 states and 14213 transitions. [2023-12-16 07:30:45,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:45,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 244 [2023-12-16 07:30:45,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:45,789 INFO L225 Difference]: With dead ends: 11271 [2023-12-16 07:30:45,790 INFO L226 Difference]: Without dead ends: 6704 [2023-12-16 07:30:45,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:45,798 INFO L413 NwaCegarLoop]: 4132 mSDtfsCounter, 4080 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4080 SdHoareTripleChecker+Valid, 4282 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:45,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4080 Valid, 4282 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:45,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6704 states. [2023-12-16 07:30:46,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 6657. [2023-12-16 07:30:46,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 6051 states have (on average 1.3596099818211866) internal successors, (8227), 6075 states have internal predecessors, (8227), 344 states have call successors, (344), 240 states have call predecessors, (344), 260 states have return successors, (386), 342 states have call predecessors, (386), 344 states have call successors, (386) [2023-12-16 07:30:46,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 8957 transitions. [2023-12-16 07:30:46,214 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 8957 transitions. Word has length 244 [2023-12-16 07:30:46,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:46,215 INFO L495 AbstractCegarLoop]: Abstraction has 6657 states and 8957 transitions. [2023-12-16 07:30:46,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 07:30:46,215 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 8957 transitions. [2023-12-16 07:30:46,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-16 07:30:46,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:46,219 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:46,223 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 (30)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:46,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 07:30:46,420 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:46,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:46,420 INFO L85 PathProgramCache]: Analyzing trace with hash 60639336, now seen corresponding path program 1 times [2023-12-16 07:30:46,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:46,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210192349] [2023-12-16 07:30:46,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:46,421 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 07:30:46,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:46,422 INFO L229 MonitoredProcess]: Starting monitored process 31 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 07:30:46,422 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 (31)] Waiting until timeout for monitored process [2023-12-16 07:30:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:46,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:46,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:46,611 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-16 07:30:46,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:46,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:46,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210192349] [2023-12-16 07:30:46,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210192349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:46,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:46,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:46,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121931185] [2023-12-16 07:30:46,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:46,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:46,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:46,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:46,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:46,613 INFO L87 Difference]: Start difference. First operand 6657 states and 8957 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 07:30:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:46,896 INFO L93 Difference]: Finished difference Result 9416 states and 12093 transitions. [2023-12-16 07:30:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:46,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 246 [2023-12-16 07:30:46,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:46,908 INFO L225 Difference]: With dead ends: 9416 [2023-12-16 07:30:46,908 INFO L226 Difference]: Without dead ends: 6659 [2023-12-16 07:30:46,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:46,913 INFO L413 NwaCegarLoop]: 4213 mSDtfsCounter, 123 mSDsluCounter, 4088 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 8301 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:46,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 8301 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:46,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6659 states. [2023-12-16 07:30:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6659 to 6657. [2023-12-16 07:30:47,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 6051 states have (on average 1.35366055197488) internal successors, (8191), 6075 states have internal predecessors, (8191), 344 states have call successors, (344), 240 states have call predecessors, (344), 260 states have return successors, (386), 342 states have call predecessors, (386), 344 states have call successors, (386) [2023-12-16 07:30:47,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 8921 transitions. [2023-12-16 07:30:47,177 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 8921 transitions. Word has length 246 [2023-12-16 07:30:47,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:47,177 INFO L495 AbstractCegarLoop]: Abstraction has 6657 states and 8921 transitions. [2023-12-16 07:30:47,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 07:30:47,177 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 8921 transitions. [2023-12-16 07:30:47,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-16 07:30:47,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:47,181 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:47,185 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 (31)] Ended with exit code 0 [2023-12-16 07:30:47,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 07:30:47,382 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:47,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:47,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1382292610, now seen corresponding path program 1 times [2023-12-16 07:30:47,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:47,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215129169] [2023-12-16 07:30:47,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:47,384 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 07:30:47,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:47,385 INFO L229 MonitoredProcess]: Starting monitored process 32 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 07:30:47,387 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 (32)] Waiting until timeout for monitored process [2023-12-16 07:30:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:47,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:47,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:47,555 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-16 07:30:47,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:47,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:47,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215129169] [2023-12-16 07:30:47,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215129169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:47,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:47,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:47,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67831978] [2023-12-16 07:30:47,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:47,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:47,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:47,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:47,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:47,557 INFO L87 Difference]: Start difference. First operand 6657 states and 8921 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 07:30:47,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:47,907 INFO L93 Difference]: Finished difference Result 10374 states and 13079 transitions. [2023-12-16 07:30:47,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:47,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 248 [2023-12-16 07:30:47,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:47,918 INFO L225 Difference]: With dead ends: 10374 [2023-12-16 07:30:47,918 INFO L226 Difference]: Without dead ends: 6657 [2023-12-16 07:30:47,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:47,922 INFO L413 NwaCegarLoop]: 4188 mSDtfsCounter, 129 mSDsluCounter, 4075 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 8263 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:47,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 8263 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6657 states. [2023-12-16 07:30:48,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6657 to 6657. [2023-12-16 07:30:48,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 6051 states have (on average 1.3467195504875227) internal successors, (8149), 6075 states have internal predecessors, (8149), 344 states have call successors, (344), 240 states have call predecessors, (344), 260 states have return successors, (386), 342 states have call predecessors, (386), 344 states have call successors, (386) [2023-12-16 07:30:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 8879 transitions. [2023-12-16 07:30:48,195 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 8879 transitions. Word has length 248 [2023-12-16 07:30:48,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:48,195 INFO L495 AbstractCegarLoop]: Abstraction has 6657 states and 8879 transitions. [2023-12-16 07:30:48,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 07:30:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 8879 transitions. [2023-12-16 07:30:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-12-16 07:30:48,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:48,200 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:48,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-12-16 07:30:48,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 07:30:48,401 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:48,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:48,401 INFO L85 PathProgramCache]: Analyzing trace with hash -736666944, now seen corresponding path program 1 times [2023-12-16 07:30:48,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:48,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864411086] [2023-12-16 07:30:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:48,402 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 07:30:48,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:48,403 INFO L229 MonitoredProcess]: Starting monitored process 33 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 07:30:48,403 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 (33)] Waiting until timeout for monitored process [2023-12-16 07:30:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:48,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:48,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-12-16 07:30:48,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:48,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:48,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864411086] [2023-12-16 07:30:48,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864411086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:48,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:48,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:48,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172989938] [2023-12-16 07:30:48,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:48,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:48,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:48,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:48,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:48,547 INFO L87 Difference]: Start difference. First operand 6657 states and 8879 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 07:30:48,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:48,808 INFO L93 Difference]: Finished difference Result 7874 states and 10214 transitions. [2023-12-16 07:30:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:48,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 251 [2023-12-16 07:30:48,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:48,816 INFO L225 Difference]: With dead ends: 7874 [2023-12-16 07:30:48,816 INFO L226 Difference]: Without dead ends: 6039 [2023-12-16 07:30:48,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:48,819 INFO L413 NwaCegarLoop]: 4215 mSDtfsCounter, 149 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 8306 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:48,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 8306 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:48,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2023-12-16 07:30:49,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 6039. [2023-12-16 07:30:49,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6039 states, 5519 states have (on average 1.3716252944373981) internal successors, (7570), 5540 states have internal predecessors, (7570), 295 states have call successors, (295), 206 states have call predecessors, (295), 223 states have return successors, (315), 293 states have call predecessors, (315), 295 states have call successors, (315) [2023-12-16 07:30:49,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6039 states to 6039 states and 8180 transitions. [2023-12-16 07:30:49,108 INFO L78 Accepts]: Start accepts. Automaton has 6039 states and 8180 transitions. Word has length 251 [2023-12-16 07:30:49,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:49,108 INFO L495 AbstractCegarLoop]: Abstraction has 6039 states and 8180 transitions. [2023-12-16 07:30:49,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 07:30:49,108 INFO L276 IsEmpty]: Start isEmpty. Operand 6039 states and 8180 transitions. [2023-12-16 07:30:49,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-16 07:30:49,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:49,112 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:49,116 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 (33)] Ended with exit code 0 [2023-12-16 07:30:49,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 07:30:49,313 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:49,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:49,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1856108708, now seen corresponding path program 2 times [2023-12-16 07:30:49,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:49,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474465355] [2023-12-16 07:30:49,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 07:30:49,314 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 07:30:49,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:49,315 INFO L229 MonitoredProcess]: Starting monitored process 34 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 07:30:49,316 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 (34)] Waiting until timeout for monitored process [2023-12-16 07:30:49,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 07:30:49,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 07:30:49,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:49,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:49,480 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-16 07:30:49,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:49,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:49,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474465355] [2023-12-16 07:30:49,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474465355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:49,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:49,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:49,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703225435] [2023-12-16 07:30:49,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:49,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:49,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:49,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:49,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:49,482 INFO L87 Difference]: Start difference. First operand 6039 states and 8180 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 07:30:49,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:49,774 INFO L93 Difference]: Finished difference Result 7071 states and 9288 transitions. [2023-12-16 07:30:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:49,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 253 [2023-12-16 07:30:49,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:49,781 INFO L225 Difference]: With dead ends: 7071 [2023-12-16 07:30:49,781 INFO L226 Difference]: Without dead ends: 5854 [2023-12-16 07:30:49,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:49,784 INFO L413 NwaCegarLoop]: 4250 mSDtfsCounter, 144 mSDsluCounter, 4099 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 8349 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:49,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 8349 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2023-12-16 07:30:50,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 5854. [2023-12-16 07:30:50,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5854 states, 5360 states have (on average 1.3798507462686567) internal successors, (7396), 5380 states have internal predecessors, (7396), 280 states have call successors, (280), 196 states have call predecessors, (280), 212 states have return successors, (296), 278 states have call predecessors, (296), 280 states have call successors, (296) [2023-12-16 07:30:50,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5854 states to 5854 states and 7972 transitions. [2023-12-16 07:30:50,038 INFO L78 Accepts]: Start accepts. Automaton has 5854 states and 7972 transitions. Word has length 253 [2023-12-16 07:30:50,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:50,039 INFO L495 AbstractCegarLoop]: Abstraction has 5854 states and 7972 transitions. [2023-12-16 07:30:50,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 07:30:50,039 INFO L276 IsEmpty]: Start isEmpty. Operand 5854 states and 7972 transitions. [2023-12-16 07:30:50,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-12-16 07:30:50,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:50,045 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:50,052 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 (34)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:50,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 07:30:50,251 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:50,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:50,252 INFO L85 PathProgramCache]: Analyzing trace with hash -689946964, now seen corresponding path program 3 times [2023-12-16 07:30:50,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:50,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069273289] [2023-12-16 07:30:50,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 07:30:50,252 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 07:30:50,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:50,254 INFO L229 MonitoredProcess]: Starting monitored process 35 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 07:30:50,259 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 (35)] Waiting until timeout for monitored process [2023-12-16 07:30:50,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-16 07:30:50,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 07:30:50,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 07:30:50,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:50,777 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 124 proven. 159 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 07:30:50,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:30:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-12-16 07:30:50,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:50,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069273289] [2023-12-16 07:30:50,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069273289] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 07:30:50,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 07:30:50,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2023-12-16 07:30:50,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545108960] [2023-12-16 07:30:50,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:50,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 07:30:50,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:50,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 07:30:50,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:50,908 INFO L87 Difference]: Start difference. First operand 5854 states and 7972 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 07:30:51,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:51,625 INFO L93 Difference]: Finished difference Result 5854 states and 7972 transitions. [2023-12-16 07:30:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:30:51,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 254 [2023-12-16 07:30:51,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:51,629 INFO L225 Difference]: With dead ends: 5854 [2023-12-16 07:30:51,629 INFO L226 Difference]: Without dead ends: 2122 [2023-12-16 07:30:51,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:51,633 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 4422 mSDsluCounter, 12987 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4422 SdHoareTripleChecker+Valid, 17404 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:51,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4422 Valid, 17404 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:30:51,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2023-12-16 07:30:51,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2122. [2023-12-16 07:30:51,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 2121 states have (on average 1.866100895803866) internal successors, (3958), 2121 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:30:51,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 3958 transitions. [2023-12-16 07:30:51,651 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 3958 transitions. Word has length 254 [2023-12-16 07:30:51,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:51,651 INFO L495 AbstractCegarLoop]: Abstraction has 2122 states and 3958 transitions. [2023-12-16 07:30:51,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 07:30:51,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 3958 transitions. [2023-12-16 07:30:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1676 [2023-12-16 07:30:51,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:51,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:51,674 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 (35)] Ended with exit code 0 [2023-12-16 07:30:51,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 07:30:51,871 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:51,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:51,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1853401865, now seen corresponding path program 1 times [2023-12-16 07:30:51,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:51,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606231280] [2023-12-16 07:30:51,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:51,884 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 07:30:51,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:51,885 INFO L229 MonitoredProcess]: Starting monitored process 36 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 07:30:51,886 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 (36)] Waiting until timeout for monitored process [2023-12-16 07:30:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:52,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 1747 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 07:30:52,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 07:30:54,967 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 (36)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:30:54,968 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 07:30:54,970 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:30:54,975 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 (36)] Ended with exit code 0 [2023-12-16 07:30:55,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 07:30:55,171 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 1676 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-8-1 context. [2023-12-16 07:30:55,173 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:30:55,176 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:55,180 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:30:55,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:30:55 BoogieIcfgContainer [2023-12-16 07:30:55,182 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:30:55,183 INFO L158 Benchmark]: Toolchain (without parser) took 55717.48ms. Allocated memory was 247.5MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 164.1MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 349.4MB. Max. memory is 8.0GB. [2023-12-16 07:30:55,183 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory was 138.3MB in the beginning and 138.1MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:30:55,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2779.82ms. Allocated memory was 247.5MB in the beginning and 401.6MB in the end (delta: 154.1MB). Free memory was 164.1MB in the beginning and 290.2MB in the end (delta: -126.1MB). Peak memory consumption was 107.5MB. Max. memory is 8.0GB. [2023-12-16 07:30:55,183 INFO L158 Benchmark]: Boogie Procedure Inliner took 386.97ms. Allocated memory is still 401.6MB. Free memory was 290.2MB in the beginning and 212.1MB in the end (delta: 78.1MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. [2023-12-16 07:30:55,183 INFO L158 Benchmark]: Boogie Preprocessor took 761.19ms. Allocated memory is still 401.6MB. Free memory was 212.1MB in the beginning and 214.2MB in the end (delta: -2.1MB). Peak memory consumption was 73.4MB. Max. memory is 8.0GB. [2023-12-16 07:30:55,184 INFO L158 Benchmark]: RCFGBuilder took 9066.50ms. Allocated memory was 401.6MB in the beginning and 1.1GB in the end (delta: 709.9MB). Free memory was 213.7MB in the beginning and 525.1MB in the end (delta: -311.4MB). Peak memory consumption was 657.5MB. Max. memory is 8.0GB. [2023-12-16 07:30:55,184 INFO L158 Benchmark]: TraceAbstraction took 42715.12ms. Allocated memory was 1.1GB in the beginning and 2.6GB in the end (delta: 1.5GB). Free memory was 524.6MB in the beginning and 2.2GB in the end (delta: -1.7GB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:30:55,185 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory was 138.3MB in the beginning and 138.1MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2779.82ms. Allocated memory was 247.5MB in the beginning and 401.6MB in the end (delta: 154.1MB). Free memory was 164.1MB in the beginning and 290.2MB in the end (delta: -126.1MB). Peak memory consumption was 107.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 386.97ms. Allocated memory is still 401.6MB. Free memory was 290.2MB in the beginning and 212.1MB in the end (delta: 78.1MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 761.19ms. Allocated memory is still 401.6MB. Free memory was 212.1MB in the beginning and 214.2MB in the end (delta: -2.1MB). Peak memory consumption was 73.4MB. Max. memory is 8.0GB. * RCFGBuilder took 9066.50ms. Allocated memory was 401.6MB in the beginning and 1.1GB in the end (delta: 709.9MB). Free memory was 213.7MB in the beginning and 525.1MB in the end (delta: -311.4MB). Peak memory consumption was 657.5MB. Max. memory is 8.0GB. * TraceAbstraction took 42715.12ms. Allocated memory was 1.1GB in the beginning and 2.6GB in the end (delta: 1.5GB). Free memory was 524.6MB in the beginning and 2.2GB in the end (delta: -1.7GB). There was no memory consumed. 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: 11088]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11088). Cancelled while NwaCegarLoop was analyzing trace of length 1676 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-8-1 context. - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was analyzing trace of length 1676 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-8-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2264 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 42.7s, OverallIterations: 35, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.2s, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81150 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81041 mSDsluCounter, 310536 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169288 mSDsCounter, 399 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3920 IncrementalHoareTripleChecker+Invalid, 4319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 399 mSolverCounterUnsat, 141248 mSDtfsCounter, 3920 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5117 GetRequests, 5045 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18252occurred in iteration=22, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.5s AutomataMinimizationTime, 34 MinimizatonAttempts, 435 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 4882 NumberOfCodeBlocks, 4853 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 5101 ConstructedInterpolants, 0 QuantifiedInterpolants, 8590 SizeOfPredicates, 4 NumberOfNonLiveVariables, 10178 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 35 InterpolantComputations, 34 PerfectInterpolantSequences, 3524/3683 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