/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.11.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:31:14,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:31:14,264 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 07:31:14,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:31:14,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:31:14,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:31:14,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:31:14,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:31:14,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:31:14,310 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:31:14,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:31:14,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:31:14,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:31:14,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:31:14,312 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:31:14,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:31:14,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:31:14,313 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:31:14,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:31:14,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:31:14,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:31:14,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:31:14,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:31:14,315 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:31:14,315 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:31:14,315 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:31:14,315 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:31:14,316 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:31:14,316 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:31:14,316 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:31:14,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:31:14,317 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:31:14,317 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:31:14,317 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:31:14,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:31:14,318 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:31:14,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:31:14,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:31:14,318 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:31:14,318 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:31:14,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:31:14,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:31:14,319 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:31:14,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:31:14,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:31:14,320 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:31:14,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:31:14,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:31:14,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:31:14,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:31:14,608 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:31:14,608 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:31:14,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.11.cil-1.c [2023-12-16 07:31:15,777 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:31:16,394 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:31:16,395 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.11.cil-1.c [2023-12-16 07:31:16,454 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5836cba59/06d716d9c22a46a2b68c7319b2648f83/FLAGffcaad0ac [2023-12-16 07:31:16,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5836cba59/06d716d9c22a46a2b68c7319b2648f83 [2023-12-16 07:31:16,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:31:16,474 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:31:16,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:31:16,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:31:16,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:31:16,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:31:16" (1/1) ... [2023-12-16 07:31:16,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388b6eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:16, skipping insertion in model container [2023-12-16 07:31:16,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:31:16" (1/1) ... [2023-12-16 07:31:16,716 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:31:18,313 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.11.cil-1.c[380323,380336] [2023-12-16 07:31:18,346 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.11.cil-1.c[383339,383352] [2023-12-16 07:31:18,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:31:18,588 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:31:19,381 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.11.cil-1.c[380323,380336] [2023-12-16 07:31:19,392 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.11.cil-1.c[383339,383352] [2023-12-16 07:31:19,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:31:19,469 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:31:19,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19 WrapperNode [2023-12-16 07:31:19,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:31:19,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:31:19,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:31:19,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:31:19,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:19,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,015 INFO L138 Inliner]: procedures = 67, calls = 75, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 13138 [2023-12-16 07:31:20,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:31:20,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:31:20,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:31:20,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:31:20,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,200 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 07:31:20,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,401 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,647 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:31:20,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:31:20,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:31:20,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:31:20,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (1/1) ... [2023-12-16 07:31:20,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:31:20,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:31:20,677 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 07:31:20,684 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 07:31:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:31:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:31:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:31:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:31:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:31:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:31:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:31:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:31:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 07:31:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 07:31:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:31:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:31:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:31:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:31:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:31:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:31:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:31:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:31:20,847 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:31:20,850 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:31:29,973 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:31:30,064 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:31:30,065 INFO L309 CfgBuilder]: Removed 15 assume(true) statements. [2023-12-16 07:31:30,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:31:30 BoogieIcfgContainer [2023-12-16 07:31:30,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:31:30,070 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:31:30,070 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:31:30,073 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:31:30,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:31:16" (1/3) ... [2023-12-16 07:31:30,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df6117c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:31:30, skipping insertion in model container [2023-12-16 07:31:30,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:31:19" (2/3) ... [2023-12-16 07:31:30,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df6117c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:31:30, skipping insertion in model container [2023-12-16 07:31:30,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:31:30" (3/3) ... [2023-12-16 07:31:30,075 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.11.cil-1.c [2023-12-16 07:31:30,091 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:31:30,091 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:31:30,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:31:30,182 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;@3a734704, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:31:30,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:31:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 2456 states, 2419 states have (on average 1.8768085985944605) internal successors, (4540), 2424 states have internal predecessors, (4540), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 07:31:30,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:30,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:30,216 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] [2023-12-16 07:31:30,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:30,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:30,222 INFO L85 PathProgramCache]: Analyzing trace with hash 190505612, now seen corresponding path program 1 times [2023-12-16 07:31:30,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:30,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553886153] [2023-12-16 07:31:30,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:30,237 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 07:31:30,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:30,239 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 07:31:30,245 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 07:31:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:30,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:31:30,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:30,587 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 07:31:30,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:30,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:30,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553886153] [2023-12-16 07:31:30,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553886153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:30,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:30,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:31:30,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434400578] [2023-12-16 07:31:30,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:30,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:31:30,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:30,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:31:30,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:31:30,645 INFO L87 Difference]: Start difference. First operand has 2456 states, 2419 states have (on average 1.8768085985944605) internal successors, (4540), 2424 states have internal predecessors, (4540), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:30,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:30,926 INFO L93 Difference]: Finished difference Result 4901 states and 9167 transitions. [2023-12-16 07:31:30,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:31:30,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:30,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:30,956 INFO L225 Difference]: With dead ends: 4901 [2023-12-16 07:31:30,956 INFO L226 Difference]: Without dead ends: 2451 [2023-12-16 07:31:30,964 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 07:31:30,967 INFO L413 NwaCegarLoop]: 4455 mSDtfsCounter, 527 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 8414 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:30,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 8414 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:31:30,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2451 states. [2023-12-16 07:31:31,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2451 to 2451. [2023-12-16 07:31:31,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 2416 states have (on average 1.8385761589403973) internal successors, (4442), 2419 states have internal predecessors, (4442), 27 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 07:31:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 4494 transitions. [2023-12-16 07:31:31,092 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 4494 transitions. Word has length 152 [2023-12-16 07:31:31,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:31,093 INFO L495 AbstractCegarLoop]: Abstraction has 2451 states and 4494 transitions. [2023-12-16 07:31:31,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:31,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 4494 transitions. [2023-12-16 07:31:31,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:31,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:31,100 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] [2023-12-16 07:31:31,109 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 07:31:31,305 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 07:31:31,305 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:31,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:31,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1978375434, now seen corresponding path program 1 times [2023-12-16 07:31:31,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:31,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970691888] [2023-12-16 07:31:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:31,310 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 07:31:31,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:31,311 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 07:31:31,315 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 07:31:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:31,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:31,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:31,611 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 07:31:31,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:31,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:31,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970691888] [2023-12-16 07:31:31,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970691888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:31,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:31,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:31,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652985308] [2023-12-16 07:31:31,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:31,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:31,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:31,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:31,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:31,615 INFO L87 Difference]: Start difference. First operand 2451 states and 4494 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:32,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:32,541 INFO L93 Difference]: Finished difference Result 3122 states and 5597 transitions. [2023-12-16 07:31:32,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:31:32,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:32,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:32,558 INFO L225 Difference]: With dead ends: 3122 [2023-12-16 07:31:32,559 INFO L226 Difference]: Without dead ends: 2809 [2023-12-16 07:31:32,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:32,563 INFO L413 NwaCegarLoop]: 4352 mSDtfsCounter, 4983 mSDsluCounter, 8910 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 13262 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:32,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5002 Valid, 13262 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 07:31:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2023-12-16 07:31:32,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2780. [2023-12-16 07:31:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.8178807947019868) internal successors, (4941), 2722 states have internal predecessors, (4941), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:32,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 5034 transitions. [2023-12-16 07:31:32,644 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 5034 transitions. Word has length 152 [2023-12-16 07:31:32,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:32,645 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 5034 transitions. [2023-12-16 07:31:32,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:32,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 5034 transitions. [2023-12-16 07:31:32,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:32,647 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:32,648 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] [2023-12-16 07:31:32,659 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 07:31:32,856 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 07:31:32,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:32,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:32,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1779625978, now seen corresponding path program 1 times [2023-12-16 07:31:32,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:32,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210425585] [2023-12-16 07:31:32,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:32,858 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 07:31:32,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:32,860 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 07:31:32,862 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 07:31:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:33,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:33,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:33,115 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 07:31:33,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:33,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:33,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210425585] [2023-12-16 07:31:33,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210425585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:33,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:33,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:33,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755905935] [2023-12-16 07:31:33,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:33,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:33,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:33,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:33,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:33,118 INFO L87 Difference]: Start difference. First operand 2780 states and 5034 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:33,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:33,653 INFO L93 Difference]: Finished difference Result 3422 states and 6087 transitions. [2023-12-16 07:31:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:33,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:33,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:33,666 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 07:31:33,666 INFO L226 Difference]: Without dead ends: 2780 [2023-12-16 07:31:33,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:33,670 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 4680 mSDsluCounter, 8446 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 12742 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:33,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4699 Valid, 12742 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:33,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2023-12-16 07:31:33,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2023-12-16 07:31:33,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.8153053715967624) internal successors, (4934), 2722 states have internal predecessors, (4934), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 5027 transitions. [2023-12-16 07:31:33,743 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 5027 transitions. Word has length 152 [2023-12-16 07:31:33,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:33,744 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 5027 transitions. [2023-12-16 07:31:33,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 5027 transitions. [2023-12-16 07:31:33,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:33,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:33,746 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] [2023-12-16 07:31:33,752 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 07:31:33,952 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 07:31:33,953 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:33,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:33,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1900851830, now seen corresponding path program 1 times [2023-12-16 07:31:33,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:33,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396145641] [2023-12-16 07:31:33,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:33,955 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 07:31:33,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:33,957 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 07:31:33,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 07:31:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:34,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:34,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:34,222 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 07:31:34,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:34,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:34,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396145641] [2023-12-16 07:31:34,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396145641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:34,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:34,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:34,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551623644] [2023-12-16 07:31:34,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:34,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:34,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:34,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:34,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:34,226 INFO L87 Difference]: Start difference. First operand 2780 states and 5027 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:34,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:34,756 INFO L93 Difference]: Finished difference Result 3422 states and 6073 transitions. [2023-12-16 07:31:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:34,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:34,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:34,768 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 07:31:34,768 INFO L226 Difference]: Without dead ends: 2780 [2023-12-16 07:31:34,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:34,772 INFO L413 NwaCegarLoop]: 4293 mSDtfsCounter, 4674 mSDsluCounter, 8442 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4693 SdHoareTripleChecker+Valid, 12735 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:34,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4693 Valid, 12735 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:34,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2023-12-16 07:31:34,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2023-12-16 07:31:34,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.8127299484915378) internal successors, (4927), 2722 states have internal predecessors, (4927), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:34,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 5020 transitions. [2023-12-16 07:31:34,847 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 5020 transitions. Word has length 152 [2023-12-16 07:31:34,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:34,847 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 5020 transitions. [2023-12-16 07:31:34,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 5020 transitions. [2023-12-16 07:31:34,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:34,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:34,850 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] [2023-12-16 07:31:34,858 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 07:31:35,055 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 07:31:35,056 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:35,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:35,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1697468294, now seen corresponding path program 1 times [2023-12-16 07:31:35,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:35,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966204278] [2023-12-16 07:31:35,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:35,057 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 07:31:35,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:35,059 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 07:31:35,061 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 (6)] Waiting until timeout for monitored process [2023-12-16 07:31:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:35,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:35,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:35,301 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 07:31:35,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:35,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:35,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966204278] [2023-12-16 07:31:35,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966204278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:35,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:35,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:35,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574349230] [2023-12-16 07:31:35,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:35,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:35,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:35,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:35,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:35,303 INFO L87 Difference]: Start difference. First operand 2780 states and 5020 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:35,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:35,896 INFO L93 Difference]: Finished difference Result 3422 states and 6059 transitions. [2023-12-16 07:31:35,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:35,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:35,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:35,915 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 07:31:35,915 INFO L226 Difference]: Without dead ends: 2780 [2023-12-16 07:31:35,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:35,919 INFO L413 NwaCegarLoop]: 4290 mSDtfsCounter, 4668 mSDsluCounter, 8438 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4687 SdHoareTripleChecker+Valid, 12728 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:35,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4687 Valid, 12728 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:35,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2023-12-16 07:31:35,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2023-12-16 07:31:35,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.8101545253863134) internal successors, (4920), 2722 states have internal predecessors, (4920), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:35,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 5013 transitions. [2023-12-16 07:31:36,000 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 5013 transitions. Word has length 152 [2023-12-16 07:31:36,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:36,001 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 5013 transitions. [2023-12-16 07:31:36,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:36,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 5013 transitions. [2023-12-16 07:31:36,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:36,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:36,004 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] [2023-12-16 07:31:36,015 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 07:31:36,215 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 07:31:36,216 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:36,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:36,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1095950838, now seen corresponding path program 1 times [2023-12-16 07:31:36,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:36,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086295818] [2023-12-16 07:31:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:36,217 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 07:31:36,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:36,218 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 07:31:36,219 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 07:31:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:36,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:36,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:36,473 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 07:31:36,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:36,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:36,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086295818] [2023-12-16 07:31:36,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086295818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:36,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:36,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:36,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565731602] [2023-12-16 07:31:36,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:36,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:36,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:36,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:36,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:36,475 INFO L87 Difference]: Start difference. First operand 2780 states and 5013 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:36,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:36,983 INFO L93 Difference]: Finished difference Result 3422 states and 6045 transitions. [2023-12-16 07:31:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:36,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:36,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:36,997 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 07:31:36,997 INFO L226 Difference]: Without dead ends: 2780 [2023-12-16 07:31:37,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:37,002 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 4662 mSDsluCounter, 8434 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4681 SdHoareTripleChecker+Valid, 12721 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:37,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4681 Valid, 12721 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:37,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2023-12-16 07:31:37,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2023-12-16 07:31:37,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.807579102281089) internal successors, (4913), 2722 states have internal predecessors, (4913), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:37,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 5006 transitions. [2023-12-16 07:31:37,105 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 5006 transitions. Word has length 152 [2023-12-16 07:31:37,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:37,105 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 5006 transitions. [2023-12-16 07:31:37,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:37,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 5006 transitions. [2023-12-16 07:31:37,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:37,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:37,107 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] [2023-12-16 07:31:37,116 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 07:31:37,308 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 07:31:37,309 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:37,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:37,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1584885510, now seen corresponding path program 1 times [2023-12-16 07:31:37,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:37,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619623353] [2023-12-16 07:31:37,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:37,310 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 07:31:37,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:37,312 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 07:31:37,348 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 07:31:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:37,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:37,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:37,549 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 07:31:37,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:37,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:37,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619623353] [2023-12-16 07:31:37,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619623353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:37,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:37,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:37,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768931290] [2023-12-16 07:31:37,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:37,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:37,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:37,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:37,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:37,552 INFO L87 Difference]: Start difference. First operand 2780 states and 5006 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:38,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:38,044 INFO L93 Difference]: Finished difference Result 3422 states and 6031 transitions. [2023-12-16 07:31:38,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:38,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:38,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:38,057 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 07:31:38,057 INFO L226 Difference]: Without dead ends: 2780 [2023-12-16 07:31:38,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:38,062 INFO L413 NwaCegarLoop]: 4284 mSDtfsCounter, 4656 mSDsluCounter, 8430 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4675 SdHoareTripleChecker+Valid, 12714 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:38,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4675 Valid, 12714 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:38,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2023-12-16 07:31:38,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2023-12-16 07:31:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.8050036791758646) internal successors, (4906), 2722 states have internal predecessors, (4906), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:38,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 4999 transitions. [2023-12-16 07:31:38,145 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 4999 transitions. Word has length 152 [2023-12-16 07:31:38,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:38,145 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 4999 transitions. [2023-12-16 07:31:38,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 4999 transitions. [2023-12-16 07:31:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:38,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:38,147 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] [2023-12-16 07:31:38,153 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 07:31:38,353 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 07:31:38,354 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:38,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:38,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1809911434, now seen corresponding path program 1 times [2023-12-16 07:31:38,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:38,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352682660] [2023-12-16 07:31:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:38,357 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 07:31:38,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:38,362 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 07:31:38,368 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 07:31:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:38,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:38,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:38,589 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 07:31:38,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:38,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:38,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352682660] [2023-12-16 07:31:38,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352682660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:38,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:38,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:38,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183560022] [2023-12-16 07:31:38,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:38,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:38,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:38,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:38,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:38,591 INFO L87 Difference]: Start difference. First operand 2780 states and 4999 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:39,080 INFO L93 Difference]: Finished difference Result 3422 states and 6017 transitions. [2023-12-16 07:31:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:39,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:39,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:39,092 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 07:31:39,092 INFO L226 Difference]: Without dead ends: 2780 [2023-12-16 07:31:39,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:39,096 INFO L413 NwaCegarLoop]: 4281 mSDtfsCounter, 4649 mSDsluCounter, 8426 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4668 SdHoareTripleChecker+Valid, 12707 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:39,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4668 Valid, 12707 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:39,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2023-12-16 07:31:39,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2023-12-16 07:31:39,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.8024282560706402) internal successors, (4899), 2722 states have internal predecessors, (4899), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 4992 transitions. [2023-12-16 07:31:39,165 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 4992 transitions. Word has length 152 [2023-12-16 07:31:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:39,165 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 4992 transitions. [2023-12-16 07:31:39,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:39,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 4992 transitions. [2023-12-16 07:31:39,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:39,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:39,167 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] [2023-12-16 07:31:39,176 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 07:31:39,373 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 07:31:39,374 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:39,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:39,374 INFO L85 PathProgramCache]: Analyzing trace with hash 259309326, now seen corresponding path program 1 times [2023-12-16 07:31:39,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:39,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155040994] [2023-12-16 07:31:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:39,375 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 07:31:39,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:39,378 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 07:31:39,381 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 07:31:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:39,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:39,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:39,620 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 07:31:39,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:39,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:39,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155040994] [2023-12-16 07:31:39,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155040994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:39,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:39,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:39,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342235228] [2023-12-16 07:31:39,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:39,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:39,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:39,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:39,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:39,622 INFO L87 Difference]: Start difference. First operand 2780 states and 4992 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:40,142 INFO L93 Difference]: Finished difference Result 3422 states and 6003 transitions. [2023-12-16 07:31:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:40,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:40,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:40,162 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 07:31:40,162 INFO L226 Difference]: Without dead ends: 2780 [2023-12-16 07:31:40,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:40,165 INFO L413 NwaCegarLoop]: 4278 mSDtfsCounter, 4643 mSDsluCounter, 8422 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4662 SdHoareTripleChecker+Valid, 12700 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:40,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4662 Valid, 12700 Invalid, 505 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:40,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2023-12-16 07:31:40,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2023-12-16 07:31:40,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.7998528329654158) internal successors, (4892), 2722 states have internal predecessors, (4892), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 4985 transitions. [2023-12-16 07:31:40,255 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 4985 transitions. Word has length 152 [2023-12-16 07:31:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:40,255 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 4985 transitions. [2023-12-16 07:31:40,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 4985 transitions. [2023-12-16 07:31:40,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:40,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:40,257 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] [2023-12-16 07:31:40,266 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 07:31:40,463 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 07:31:40,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:40,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:40,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1037636086, now seen corresponding path program 1 times [2023-12-16 07:31:40,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:40,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533992651] [2023-12-16 07:31:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:40,465 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 07:31:40,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:40,466 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 07:31:40,472 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 07:31:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:40,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:40,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:40,680 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 07:31:40,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:40,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:40,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533992651] [2023-12-16 07:31:40,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533992651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:40,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:40,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:40,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021088061] [2023-12-16 07:31:40,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:40,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:40,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:40,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:40,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:40,682 INFO L87 Difference]: Start difference. First operand 2780 states and 4985 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:41,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:41,194 INFO L93 Difference]: Finished difference Result 3422 states and 5989 transitions. [2023-12-16 07:31:41,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:41,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:41,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:41,202 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 07:31:41,202 INFO L226 Difference]: Without dead ends: 2780 [2023-12-16 07:31:41,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:41,205 INFO L413 NwaCegarLoop]: 4275 mSDtfsCounter, 4637 mSDsluCounter, 8418 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4656 SdHoareTripleChecker+Valid, 12693 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:41,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4656 Valid, 12693 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:41,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2023-12-16 07:31:41,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2023-12-16 07:31:41,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.7972774098601914) internal successors, (4885), 2722 states have internal predecessors, (4885), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 4978 transitions. [2023-12-16 07:31:41,292 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 4978 transitions. Word has length 152 [2023-12-16 07:31:41,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:41,293 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 4978 transitions. [2023-12-16 07:31:41,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:41,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 4978 transitions. [2023-12-16 07:31:41,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:41,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:41,295 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] [2023-12-16 07:31:41,301 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 07:31:41,500 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 07:31:41,501 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:41,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:41,502 INFO L85 PathProgramCache]: Analyzing trace with hash -248189042, now seen corresponding path program 1 times [2023-12-16 07:31:41,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:41,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99225400] [2023-12-16 07:31:41,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:41,502 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 07:31:41,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:41,503 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 07:31:41,504 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 07:31:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:41,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:41,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:41,718 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 07:31:41,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:41,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:41,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99225400] [2023-12-16 07:31:41,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99225400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:41,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:41,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:41,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974541773] [2023-12-16 07:31:41,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:41,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:41,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:41,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:41,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:41,721 INFO L87 Difference]: Start difference. First operand 2780 states and 4978 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:42,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:42,247 INFO L93 Difference]: Finished difference Result 3422 states and 5975 transitions. [2023-12-16 07:31:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:42,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:42,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:42,254 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 07:31:42,255 INFO L226 Difference]: Without dead ends: 2780 [2023-12-16 07:31:42,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:42,258 INFO L413 NwaCegarLoop]: 4272 mSDtfsCounter, 4631 mSDsluCounter, 8414 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4650 SdHoareTripleChecker+Valid, 12686 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:42,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4650 Valid, 12686 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:42,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2023-12-16 07:31:42,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2023-12-16 07:31:42,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.794701986754967) internal successors, (4878), 2722 states have internal predecessors, (4878), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 4971 transitions. [2023-12-16 07:31:42,350 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 4971 transitions. Word has length 152 [2023-12-16 07:31:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:42,350 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 4971 transitions. [2023-12-16 07:31:42,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:42,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 4971 transitions. [2023-12-16 07:31:42,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:42,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:42,352 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] [2023-12-16 07:31:42,359 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 07:31:42,558 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 07:31:42,559 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:42,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:42,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2023838326, now seen corresponding path program 1 times [2023-12-16 07:31:42,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:42,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149984122] [2023-12-16 07:31:42,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:42,560 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 07:31:42,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:42,561 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 07:31:42,562 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 07:31:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:42,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:42,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:42,773 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 07:31:42,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:42,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:42,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149984122] [2023-12-16 07:31:42,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149984122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:42,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:42,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:42,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114363060] [2023-12-16 07:31:42,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:42,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:42,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:42,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:42,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:42,776 INFO L87 Difference]: Start difference. First operand 2780 states and 4971 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:43,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:43,303 INFO L93 Difference]: Finished difference Result 3422 states and 5961 transitions. [2023-12-16 07:31:43,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:43,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:43,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:43,310 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 07:31:43,311 INFO L226 Difference]: Without dead ends: 2780 [2023-12-16 07:31:43,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:43,314 INFO L413 NwaCegarLoop]: 4269 mSDtfsCounter, 4625 mSDsluCounter, 8410 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4644 SdHoareTripleChecker+Valid, 12679 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:43,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4644 Valid, 12679 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:43,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2023-12-16 07:31:43,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2780. [2023-12-16 07:31:43,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.7921265636497425) internal successors, (4871), 2722 states have internal predecessors, (4871), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 07:31:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 4964 transitions. [2023-12-16 07:31:43,395 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 4964 transitions. Word has length 152 [2023-12-16 07:31:43,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:43,396 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 4964 transitions. [2023-12-16 07:31:43,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:43,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 4964 transitions. [2023-12-16 07:31:43,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:43,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:43,399 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] [2023-12-16 07:31:43,404 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 07:31:43,604 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 07:31:43,605 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:43,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:43,605 INFO L85 PathProgramCache]: Analyzing trace with hash -834191346, now seen corresponding path program 1 times [2023-12-16 07:31:43,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:43,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264771252] [2023-12-16 07:31:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:43,606 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 07:31:43,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:43,607 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 07:31:43,608 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 07:31:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:43,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:43,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:43,804 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 07:31:43,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:43,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:43,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264771252] [2023-12-16 07:31:43,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264771252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:43,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:43,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:43,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305220553] [2023-12-16 07:31:43,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:43,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:43,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:43,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:43,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:43,806 INFO L87 Difference]: Start difference. First operand 2780 states and 4964 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:44,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:44,443 INFO L93 Difference]: Finished difference Result 3576 states and 6199 transitions. [2023-12-16 07:31:44,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:31:44,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:44,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:44,458 INFO L225 Difference]: With dead ends: 3576 [2023-12-16 07:31:44,458 INFO L226 Difference]: Without dead ends: 2934 [2023-12-16 07:31:44,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:44,462 INFO L413 NwaCegarLoop]: 4267 mSDtfsCounter, 4724 mSDsluCounter, 8406 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 12673 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:44,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4743 Valid, 12673 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:31:44,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2023-12-16 07:31:44,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2934. [2023-12-16 07:31:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2866 states have (on average 1.7732030704815074) internal successors, (5082), 2870 states have internal predecessors, (5082), 49 states have call successors, (49), 17 states have call predecessors, (49), 17 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:31:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 5179 transitions. [2023-12-16 07:31:44,531 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 5179 transitions. Word has length 152 [2023-12-16 07:31:44,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:44,532 INFO L495 AbstractCegarLoop]: Abstraction has 2934 states and 5179 transitions. [2023-12-16 07:31:44,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:44,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 5179 transitions. [2023-12-16 07:31:44,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:44,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:44,534 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] [2023-12-16 07:31:44,543 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 07:31:44,739 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 07:31:44,740 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:44,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:44,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1153119913, now seen corresponding path program 1 times [2023-12-16 07:31:44,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:44,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362270518] [2023-12-16 07:31:44,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:44,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:31:44,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:44,742 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 07:31:44,743 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 07:31:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:44,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:44,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:44,955 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 07:31:44,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:44,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:44,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362270518] [2023-12-16 07:31:44,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362270518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:44,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:44,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:44,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027354015] [2023-12-16 07:31:44,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:44,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:44,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:44,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:44,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:44,958 INFO L87 Difference]: Start difference. First operand 2934 states and 5179 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:45,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:45,521 INFO L93 Difference]: Finished difference Result 3884 states and 6629 transitions. [2023-12-16 07:31:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:31:45,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:45,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:45,530 INFO L225 Difference]: With dead ends: 3884 [2023-12-16 07:31:45,530 INFO L226 Difference]: Without dead ends: 3088 [2023-12-16 07:31:45,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:45,534 INFO L413 NwaCegarLoop]: 4264 mSDtfsCounter, 4717 mSDsluCounter, 8402 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4736 SdHoareTripleChecker+Valid, 12666 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:45,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4736 Valid, 12666 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:31:45,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2023-12-16 07:31:45,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 3088. [2023-12-16 07:31:45,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 3014 states have (on average 1.7548108825481088) internal successors, (5289), 3018 states have internal predecessors, (5289), 51 states have call successors, (51), 21 states have call predecessors, (51), 21 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:31:45,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 5390 transitions. [2023-12-16 07:31:45,613 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 5390 transitions. Word has length 152 [2023-12-16 07:31:45,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:45,613 INFO L495 AbstractCegarLoop]: Abstraction has 3088 states and 5390 transitions. [2023-12-16 07:31:45,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:45,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 5390 transitions. [2023-12-16 07:31:45,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:45,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:45,615 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] [2023-12-16 07:31:45,626 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 07:31:45,820 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 07:31:45,821 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:45,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:45,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1257151021, now seen corresponding path program 1 times [2023-12-16 07:31:45,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:45,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059861875] [2023-12-16 07:31:45,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:45,822 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 07:31:45,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:45,823 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 07:31:45,827 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 07:31:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:45,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:45,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:46,016 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 07:31:46,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:46,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:46,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059861875] [2023-12-16 07:31:46,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059861875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:46,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:46,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:46,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564895330] [2023-12-16 07:31:46,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:46,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:46,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:46,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:46,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:46,018 INFO L87 Difference]: Start difference. First operand 3088 states and 5390 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:46,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:46,645 INFO L93 Difference]: Finished difference Result 4192 states and 7051 transitions. [2023-12-16 07:31:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:31:46,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:46,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:46,652 INFO L225 Difference]: With dead ends: 4192 [2023-12-16 07:31:46,652 INFO L226 Difference]: Without dead ends: 3242 [2023-12-16 07:31:46,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:46,658 INFO L413 NwaCegarLoop]: 4261 mSDtfsCounter, 4710 mSDsluCounter, 8398 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4729 SdHoareTripleChecker+Valid, 12659 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:46,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4729 Valid, 12659 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:31:46,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2023-12-16 07:31:46,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 3242. [2023-12-16 07:31:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3242 states, 3162 states have (on average 1.736875395319418) internal successors, (5492), 3166 states have internal predecessors, (5492), 53 states have call successors, (53), 25 states have call predecessors, (53), 25 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-16 07:31:46,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3242 states to 3242 states and 5597 transitions. [2023-12-16 07:31:46,741 INFO L78 Accepts]: Start accepts. Automaton has 3242 states and 5597 transitions. Word has length 152 [2023-12-16 07:31:46,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:46,742 INFO L495 AbstractCegarLoop]: Abstraction has 3242 states and 5597 transitions. [2023-12-16 07:31:46,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:46,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3242 states and 5597 transitions. [2023-12-16 07:31:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:46,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:46,744 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] [2023-12-16 07:31:46,752 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 07:31:46,949 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 07:31:46,950 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:46,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:46,951 INFO L85 PathProgramCache]: Analyzing trace with hash 71695090, now seen corresponding path program 1 times [2023-12-16 07:31:46,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:46,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532680482] [2023-12-16 07:31:46,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:46,951 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 07:31:46,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:46,953 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 07:31:46,990 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 07:31:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:47,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:47,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:47,172 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 07:31:47,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:47,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:47,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532680482] [2023-12-16 07:31:47,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532680482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:47,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:47,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:47,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160101423] [2023-12-16 07:31:47,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:47,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:47,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:47,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:47,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:47,175 INFO L87 Difference]: Start difference. First operand 3242 states and 5597 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:47,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:47,705 INFO L93 Difference]: Finished difference Result 4500 states and 7465 transitions. [2023-12-16 07:31:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:31:47,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:47,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:47,713 INFO L225 Difference]: With dead ends: 4500 [2023-12-16 07:31:47,713 INFO L226 Difference]: Without dead ends: 3396 [2023-12-16 07:31:47,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:47,717 INFO L413 NwaCegarLoop]: 4258 mSDtfsCounter, 4703 mSDsluCounter, 8394 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4722 SdHoareTripleChecker+Valid, 12652 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:47,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4722 Valid, 12652 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:47,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2023-12-16 07:31:47,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 3396. [2023-12-16 07:31:47,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3396 states, 3310 states have (on average 1.719335347432024) internal successors, (5691), 3314 states have internal predecessors, (5691), 55 states have call successors, (55), 29 states have call predecessors, (55), 29 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-16 07:31:47,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3396 states to 3396 states and 5800 transitions. [2023-12-16 07:31:47,814 INFO L78 Accepts]: Start accepts. Automaton has 3396 states and 5800 transitions. Word has length 152 [2023-12-16 07:31:47,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:47,814 INFO L495 AbstractCegarLoop]: Abstraction has 3396 states and 5800 transitions. [2023-12-16 07:31:47,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:47,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3396 states and 5800 transitions. [2023-12-16 07:31:47,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:47,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:47,816 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] [2023-12-16 07:31:47,826 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 07:31:48,023 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 07:31:48,024 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:48,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:48,025 INFO L85 PathProgramCache]: Analyzing trace with hash -198908434, now seen corresponding path program 1 times [2023-12-16 07:31:48,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:48,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732776290] [2023-12-16 07:31:48,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:48,025 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 07:31:48,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:48,027 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 07:31:48,061 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 (18)] Waiting until timeout for monitored process [2023-12-16 07:31:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:48,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:48,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:48,244 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 07:31:48,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:48,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:48,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732776290] [2023-12-16 07:31:48,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732776290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:48,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:48,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:48,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033289225] [2023-12-16 07:31:48,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:48,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:48,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:48,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:48,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:48,247 INFO L87 Difference]: Start difference. First operand 3396 states and 5800 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:48,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:48,992 INFO L93 Difference]: Finished difference Result 4808 states and 7871 transitions. [2023-12-16 07:31:48,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:31:48,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:48,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:48,999 INFO L225 Difference]: With dead ends: 4808 [2023-12-16 07:31:49,000 INFO L226 Difference]: Without dead ends: 3550 [2023-12-16 07:31:49,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:49,002 INFO L413 NwaCegarLoop]: 4255 mSDtfsCounter, 4696 mSDsluCounter, 8390 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4715 SdHoareTripleChecker+Valid, 12645 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:49,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4715 Valid, 12645 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:31:49,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2023-12-16 07:31:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3550. [2023-12-16 07:31:49,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 3458 states have (on average 1.70213996529786) internal successors, (5886), 3462 states have internal predecessors, (5886), 57 states have call successors, (57), 33 states have call predecessors, (57), 33 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 07:31:49,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 5999 transitions. [2023-12-16 07:31:49,100 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 5999 transitions. Word has length 152 [2023-12-16 07:31:49,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:49,100 INFO L495 AbstractCegarLoop]: Abstraction has 3550 states and 5999 transitions. [2023-12-16 07:31:49,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:49,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 5999 transitions. [2023-12-16 07:31:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:49,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:49,102 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] [2023-12-16 07:31:49,111 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 07:31:49,308 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 07:31:49,310 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:49,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:49,310 INFO L85 PathProgramCache]: Analyzing trace with hash 933545203, now seen corresponding path program 1 times [2023-12-16 07:31:49,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:49,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750668358] [2023-12-16 07:31:49,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:49,311 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 07:31:49,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:49,312 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 07:31:49,348 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 07:31:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:49,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:49,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:49,537 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 07:31:49,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:49,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:49,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750668358] [2023-12-16 07:31:49,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750668358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:49,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:49,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:49,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267813307] [2023-12-16 07:31:49,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:49,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:49,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:49,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:49,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:49,539 INFO L87 Difference]: Start difference. First operand 3550 states and 5999 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:50,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:50,081 INFO L93 Difference]: Finished difference Result 5116 states and 8269 transitions. [2023-12-16 07:31:50,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:31:50,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:50,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:50,090 INFO L225 Difference]: With dead ends: 5116 [2023-12-16 07:31:50,091 INFO L226 Difference]: Without dead ends: 3704 [2023-12-16 07:31:50,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:50,096 INFO L413 NwaCegarLoop]: 4252 mSDtfsCounter, 4689 mSDsluCounter, 8386 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4708 SdHoareTripleChecker+Valid, 12638 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:50,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4708 Valid, 12638 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:50,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2023-12-16 07:31:50,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3704. [2023-12-16 07:31:50,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 3606 states have (on average 1.685246810870771) internal successors, (6077), 3610 states have internal predecessors, (6077), 59 states have call successors, (59), 37 states have call predecessors, (59), 37 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-16 07:31:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 6194 transitions. [2023-12-16 07:31:50,201 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 6194 transitions. Word has length 152 [2023-12-16 07:31:50,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:50,201 INFO L495 AbstractCegarLoop]: Abstraction has 3704 states and 6194 transitions. [2023-12-16 07:31:50,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:50,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 6194 transitions. [2023-12-16 07:31:50,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:50,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:50,203 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] [2023-12-16 07:31:50,211 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 07:31:50,409 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 07:31:50,409 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:50,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1493549329, now seen corresponding path program 1 times [2023-12-16 07:31:50,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:50,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263309314] [2023-12-16 07:31:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:50,411 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 07:31:50,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:50,412 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 07:31:50,450 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 07:31:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:50,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:50,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:50,636 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 07:31:50,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:50,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:50,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263309314] [2023-12-16 07:31:50,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263309314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:50,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:50,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:50,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288794340] [2023-12-16 07:31:50,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:50,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:50,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:50,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:50,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:50,639 INFO L87 Difference]: Start difference. First operand 3704 states and 6194 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:51,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:51,254 INFO L93 Difference]: Finished difference Result 5424 states and 8659 transitions. [2023-12-16 07:31:51,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:31:51,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:51,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:51,263 INFO L225 Difference]: With dead ends: 5424 [2023-12-16 07:31:51,263 INFO L226 Difference]: Without dead ends: 3858 [2023-12-16 07:31:51,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:51,267 INFO L413 NwaCegarLoop]: 4249 mSDtfsCounter, 4682 mSDsluCounter, 8382 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4701 SdHoareTripleChecker+Valid, 12631 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:51,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4701 Valid, 12631 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:31:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2023-12-16 07:31:51,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3858. [2023-12-16 07:31:51,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3754 states have (on average 1.6686201385189132) internal successors, (6264), 3758 states have internal predecessors, (6264), 61 states have call successors, (61), 41 states have call predecessors, (61), 41 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-16 07:31:51,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 6385 transitions. [2023-12-16 07:31:51,375 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 6385 transitions. Word has length 152 [2023-12-16 07:31:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:51,376 INFO L495 AbstractCegarLoop]: Abstraction has 3858 states and 6385 transitions. [2023-12-16 07:31:51,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:51,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 6385 transitions. [2023-12-16 07:31:51,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:51,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:51,377 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] [2023-12-16 07:31:51,386 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 07:31:51,584 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 07:31:51,584 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:51,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:51,585 INFO L85 PathProgramCache]: Analyzing trace with hash -434213836, now seen corresponding path program 1 times [2023-12-16 07:31:51,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:51,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179099036] [2023-12-16 07:31:51,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:51,585 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 07:31:51,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:51,587 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 07:31:51,626 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 07:31:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:51,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:51,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:51,806 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 07:31:51,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:51,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:51,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179099036] [2023-12-16 07:31:51,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179099036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:51,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:51,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:51,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719976926] [2023-12-16 07:31:51,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:51,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:51,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:51,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:51,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:51,808 INFO L87 Difference]: Start difference. First operand 3858 states and 6385 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:52,359 INFO L93 Difference]: Finished difference Result 5732 states and 9041 transitions. [2023-12-16 07:31:52,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:31:52,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:52,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:52,365 INFO L225 Difference]: With dead ends: 5732 [2023-12-16 07:31:52,365 INFO L226 Difference]: Without dead ends: 4012 [2023-12-16 07:31:52,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:52,370 INFO L413 NwaCegarLoop]: 4246 mSDtfsCounter, 4675 mSDsluCounter, 8378 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4694 SdHoareTripleChecker+Valid, 12624 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:52,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4694 Valid, 12624 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:52,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4012 states. [2023-12-16 07:31:52,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4012 to 4012. [2023-12-16 07:31:52,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4012 states, 3902 states have (on average 1.6522296258329061) internal successors, (6447), 3906 states have internal predecessors, (6447), 63 states have call successors, (63), 45 states have call predecessors, (63), 45 states have return successors, (62), 61 states have call predecessors, (62), 61 states have call successors, (62) [2023-12-16 07:31:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4012 states to 4012 states and 6572 transitions. [2023-12-16 07:31:52,563 INFO L78 Accepts]: Start accepts. Automaton has 4012 states and 6572 transitions. Word has length 152 [2023-12-16 07:31:52,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:52,563 INFO L495 AbstractCegarLoop]: Abstraction has 4012 states and 6572 transitions. [2023-12-16 07:31:52,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:52,564 INFO L276 IsEmpty]: Start isEmpty. Operand 4012 states and 6572 transitions. [2023-12-16 07:31:52,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:52,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:52,565 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] [2023-12-16 07:31:52,574 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 07:31:52,771 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 07:31:52,772 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:52,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:52,772 INFO L85 PathProgramCache]: Analyzing trace with hash 255997232, now seen corresponding path program 1 times [2023-12-16 07:31:52,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:52,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210027391] [2023-12-16 07:31:52,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:52,773 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 07:31:52,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:52,774 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 07:31:52,775 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 07:31:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:52,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:52,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:52,987 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 07:31:52,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:52,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:52,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210027391] [2023-12-16 07:31:52,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210027391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:52,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:52,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:52,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319488811] [2023-12-16 07:31:52,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:52,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:52,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:52,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:52,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:52,990 INFO L87 Difference]: Start difference. First operand 4012 states and 6572 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:53,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:53,597 INFO L93 Difference]: Finished difference Result 6040 states and 9415 transitions. [2023-12-16 07:31:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:31:53,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:53,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:53,603 INFO L225 Difference]: With dead ends: 6040 [2023-12-16 07:31:53,604 INFO L226 Difference]: Without dead ends: 4166 [2023-12-16 07:31:53,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:53,608 INFO L413 NwaCegarLoop]: 4243 mSDtfsCounter, 4668 mSDsluCounter, 8374 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4687 SdHoareTripleChecker+Valid, 12617 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:53,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4687 Valid, 12617 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:31:53,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4166 states. [2023-12-16 07:31:53,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4166 to 4166. [2023-12-16 07:31:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4166 states, 4050 states have (on average 1.6360493827160494) internal successors, (6626), 4054 states have internal predecessors, (6626), 65 states have call successors, (65), 49 states have call predecessors, (65), 49 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-12-16 07:31:53,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4166 states to 4166 states and 6755 transitions. [2023-12-16 07:31:53,732 INFO L78 Accepts]: Start accepts. Automaton has 4166 states and 6755 transitions. Word has length 152 [2023-12-16 07:31:53,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:53,733 INFO L495 AbstractCegarLoop]: Abstraction has 4166 states and 6755 transitions. [2023-12-16 07:31:53,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:53,733 INFO L276 IsEmpty]: Start isEmpty. Operand 4166 states and 6755 transitions. [2023-12-16 07:31:53,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:53,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:53,734 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] [2023-12-16 07:31:53,743 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 07:31:53,940 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 07:31:53,940 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:53,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:53,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1999994699, now seen corresponding path program 1 times [2023-12-16 07:31:53,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:53,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447230235] [2023-12-16 07:31:53,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:53,941 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 07:31:53,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:53,942 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 07:31:53,943 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 07:31:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:54,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:54,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:54,175 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 07:31:54,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:54,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447230235] [2023-12-16 07:31:54,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447230235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:54,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:54,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:54,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026163829] [2023-12-16 07:31:54,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:54,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:31:54,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:54,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:31:54,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:31:54,177 INFO L87 Difference]: Start difference. First operand 4166 states and 6755 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:54,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:54,764 INFO L93 Difference]: Finished difference Result 6348 states and 9781 transitions. [2023-12-16 07:31:54,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:31:54,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:54,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:54,771 INFO L225 Difference]: With dead ends: 6348 [2023-12-16 07:31:54,772 INFO L226 Difference]: Without dead ends: 4320 [2023-12-16 07:31:54,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 07:31:54,779 INFO L413 NwaCegarLoop]: 4240 mSDtfsCounter, 4660 mSDsluCounter, 8370 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4679 SdHoareTripleChecker+Valid, 12610 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:54,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4679 Valid, 12610 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:31:54,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4320 states. [2023-12-16 07:31:54,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4320 to 4320. [2023-12-16 07:31:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4320 states, 4198 states have (on average 1.620057170080991) internal successors, (6801), 4202 states have internal predecessors, (6801), 67 states have call successors, (67), 53 states have call predecessors, (67), 53 states have return successors, (66), 65 states have call predecessors, (66), 65 states have call successors, (66) [2023-12-16 07:31:54,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4320 states to 4320 states and 6934 transitions. [2023-12-16 07:31:54,913 INFO L78 Accepts]: Start accepts. Automaton has 4320 states and 6934 transitions. Word has length 152 [2023-12-16 07:31:54,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:54,913 INFO L495 AbstractCegarLoop]: Abstraction has 4320 states and 6934 transitions. [2023-12-16 07:31:54,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:54,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4320 states and 6934 transitions. [2023-12-16 07:31:54,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:54,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:54,914 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] [2023-12-16 07:31:54,922 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 07:31:55,119 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 07:31:55,120 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:55,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:55,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1035647610, now seen corresponding path program 1 times [2023-12-16 07:31:55,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:55,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19456435] [2023-12-16 07:31:55,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:55,121 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 07:31:55,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:55,122 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 07:31:55,124 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 07:31:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:55,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:55,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:55,265 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 07:31:55,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:55,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:55,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19456435] [2023-12-16 07:31:55,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19456435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:55,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:55,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:55,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820410473] [2023-12-16 07:31:55,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:55,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:31:55,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:55,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:31:55,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:31:55,267 INFO L87 Difference]: Start difference. First operand 4320 states and 6934 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:55,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:55,556 INFO L93 Difference]: Finished difference Result 6641 states and 10118 transitions. [2023-12-16 07:31:55,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:55,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:55,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:55,563 INFO L225 Difference]: With dead ends: 6641 [2023-12-16 07:31:55,564 INFO L226 Difference]: Without dead ends: 4460 [2023-12-16 07:31:55,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:31:55,569 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 101 mSDsluCounter, 8770 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 13162 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:55,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 13162 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:31:55,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4460 states. [2023-12-16 07:31:55,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 4324. [2023-12-16 07:31:55,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4202 states have (on average 1.6147072822465494) internal successors, (6785), 4206 states have internal predecessors, (6785), 67 states have call successors, (67), 53 states have call predecessors, (67), 53 states have return successors, (66), 65 states have call predecessors, (66), 65 states have call successors, (66) [2023-12-16 07:31:55,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 6918 transitions. [2023-12-16 07:31:55,702 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 6918 transitions. Word has length 152 [2023-12-16 07:31:55,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:55,702 INFO L495 AbstractCegarLoop]: Abstraction has 4324 states and 6918 transitions. [2023-12-16 07:31:55,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:55,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 6918 transitions. [2023-12-16 07:31:55,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:55,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:55,704 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] [2023-12-16 07:31:55,710 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 (24)] Ended with exit code 0 [2023-12-16 07:31:55,910 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 07:31:55,910 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:55,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:55,911 INFO L85 PathProgramCache]: Analyzing trace with hash -271494788, now seen corresponding path program 1 times [2023-12-16 07:31:55,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:55,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364965002] [2023-12-16 07:31:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:55,911 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 07:31:55,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:55,912 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 07:31:55,913 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 07:31:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:56,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:56,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:56,071 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 07:31:56,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:56,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364965002] [2023-12-16 07:31:56,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364965002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:56,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:56,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:56,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794446637] [2023-12-16 07:31:56,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:56,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:31:56,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:56,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:31:56,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:31:56,073 INFO L87 Difference]: Start difference. First operand 4324 states and 6918 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:56,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:56,305 INFO L93 Difference]: Finished difference Result 6637 states and 10070 transitions. [2023-12-16 07:31:56,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:56,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:56,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:56,315 INFO L225 Difference]: With dead ends: 6637 [2023-12-16 07:31:56,315 INFO L226 Difference]: Without dead ends: 4452 [2023-12-16 07:31:56,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:31:56,323 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 92 mSDsluCounter, 8771 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 13163 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:56,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 13163 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:31:56,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4452 states. [2023-12-16 07:31:56,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4452 to 4328. [2023-12-16 07:31:56,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4328 states, 4206 states have (on average 1.6093675701378982) internal successors, (6769), 4210 states have internal predecessors, (6769), 67 states have call successors, (67), 53 states have call predecessors, (67), 53 states have return successors, (66), 65 states have call predecessors, (66), 65 states have call successors, (66) [2023-12-16 07:31:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4328 states to 4328 states and 6902 transitions. [2023-12-16 07:31:56,441 INFO L78 Accepts]: Start accepts. Automaton has 4328 states and 6902 transitions. Word has length 152 [2023-12-16 07:31:56,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:56,442 INFO L495 AbstractCegarLoop]: Abstraction has 4328 states and 6902 transitions. [2023-12-16 07:31:56,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:56,442 INFO L276 IsEmpty]: Start isEmpty. Operand 4328 states and 6902 transitions. [2023-12-16 07:31:56,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:56,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:56,444 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] [2023-12-16 07:31:56,452 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 (25)] Forceful destruction successful, exit code 0 [2023-12-16 07:31:56,649 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 07:31:56,650 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:56,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:56,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1328225990, now seen corresponding path program 1 times [2023-12-16 07:31:56,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:56,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322336037] [2023-12-16 07:31:56,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:56,651 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 07:31:56,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:56,652 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 07:31:56,653 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 07:31:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:56,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:31:56,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:56,838 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 07:31:56,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:56,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:56,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322336037] [2023-12-16 07:31:56,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322336037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:56,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:56,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:31:56,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955625299] [2023-12-16 07:31:56,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:56,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:31:56,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:56,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:31:56,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:31:56,840 INFO L87 Difference]: Start difference. First operand 4328 states and 6902 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:57,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:57,134 INFO L93 Difference]: Finished difference Result 8523 states and 12516 transitions. [2023-12-16 07:31:57,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:31:57,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:57,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:57,143 INFO L225 Difference]: With dead ends: 8523 [2023-12-16 07:31:57,143 INFO L226 Difference]: Without dead ends: 6334 [2023-12-16 07:31:57,148 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 07:31:57,148 INFO L413 NwaCegarLoop]: 4448 mSDtfsCounter, 4364 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 4846 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:57,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4364 Valid, 4846 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:31:57,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6334 states. [2023-12-16 07:31:57,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6334 to 6328. [2023-12-16 07:31:57,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6328 states, 6100 states have (on average 1.5218032786885245) internal successors, (9283), 6105 states have internal predecessors, (9283), 124 states have call successors, (124), 101 states have call predecessors, (124), 102 states have return successors, (124), 122 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 07:31:57,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6328 states to 6328 states and 9531 transitions. [2023-12-16 07:31:57,467 INFO L78 Accepts]: Start accepts. Automaton has 6328 states and 9531 transitions. Word has length 152 [2023-12-16 07:31:57,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:57,467 INFO L495 AbstractCegarLoop]: Abstraction has 6328 states and 9531 transitions. [2023-12-16 07:31:57,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:57,468 INFO L276 IsEmpty]: Start isEmpty. Operand 6328 states and 9531 transitions. [2023-12-16 07:31:57,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:57,473 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:57,473 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] [2023-12-16 07:31:57,480 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 (26)] Forceful destruction successful, exit code 0 [2023-12-16 07:31:57,678 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 07:31:57,679 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:57,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:57,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1055230567, now seen corresponding path program 1 times [2023-12-16 07:31:57,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:57,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418054218] [2023-12-16 07:31:57,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:57,680 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 07:31:57,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:57,681 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 07:31:57,682 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 07:31:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:57,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:57,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:57,822 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 07:31:57,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:57,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:57,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418054218] [2023-12-16 07:31:57,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418054218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:57,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:57,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:57,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838661635] [2023-12-16 07:31:57,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:57,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:31:57,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:57,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:31:57,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:31:57,825 INFO L87 Difference]: Start difference. First operand 6328 states and 9531 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:58,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:58,102 INFO L93 Difference]: Finished difference Result 11793 states and 16902 transitions. [2023-12-16 07:31:58,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:58,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:58,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:58,114 INFO L225 Difference]: With dead ends: 11793 [2023-12-16 07:31:58,114 INFO L226 Difference]: Without dead ends: 7604 [2023-12-16 07:31:58,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:31:58,123 INFO L413 NwaCegarLoop]: 4395 mSDtfsCounter, 83 mSDsluCounter, 8784 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 13179 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:58,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 13179 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:31:58,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7604 states. [2023-12-16 07:31:58,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7604 to 6372. [2023-12-16 07:31:58,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6372 states, 6144 states have (on average 1.5148111979166667) internal successors, (9307), 6149 states have internal predecessors, (9307), 124 states have call successors, (124), 101 states have call predecessors, (124), 102 states have return successors, (124), 122 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 07:31:58,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6372 states to 6372 states and 9555 transitions. [2023-12-16 07:31:58,359 INFO L78 Accepts]: Start accepts. Automaton has 6372 states and 9555 transitions. Word has length 152 [2023-12-16 07:31:58,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:58,359 INFO L495 AbstractCegarLoop]: Abstraction has 6372 states and 9555 transitions. [2023-12-16 07:31:58,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:58,360 INFO L276 IsEmpty]: Start isEmpty. Operand 6372 states and 9555 transitions. [2023-12-16 07:31:58,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:58,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:58,361 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] [2023-12-16 07:31:58,371 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 (27)] Forceful destruction successful, exit code 0 [2023-12-16 07:31:58,566 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 07:31:58,567 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:58,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:58,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1299154715, now seen corresponding path program 1 times [2023-12-16 07:31:58,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:58,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571090463] [2023-12-16 07:31:58,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:58,568 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 07:31:58,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:58,569 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 07:31:58,570 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 07:31:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:58,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:58,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:58,711 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 07:31:58,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:58,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:58,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571090463] [2023-12-16 07:31:58,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571090463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:58,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:58,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:58,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321401174] [2023-12-16 07:31:58,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:58,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:31:58,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:31:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:31:58,713 INFO L87 Difference]: Start difference. First operand 6372 states and 9555 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:59,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:59,060 INFO L93 Difference]: Finished difference Result 10709 states and 15355 transitions. [2023-12-16 07:31:59,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:59,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:59,074 INFO L225 Difference]: With dead ends: 10709 [2023-12-16 07:31:59,074 INFO L226 Difference]: Without dead ends: 6476 [2023-12-16 07:31:59,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:31:59,086 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 74 mSDsluCounter, 8772 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 13164 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:59,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 13164 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:31:59,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6476 states. [2023-12-16 07:31:59,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6476 to 6376. [2023-12-16 07:31:59,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6376 states, 6148 states have (on average 1.5079700715679896) internal successors, (9271), 6153 states have internal predecessors, (9271), 124 states have call successors, (124), 101 states have call predecessors, (124), 102 states have return successors, (124), 122 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 07:31:59,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6376 states to 6376 states and 9519 transitions. [2023-12-16 07:31:59,294 INFO L78 Accepts]: Start accepts. Automaton has 6376 states and 9519 transitions. Word has length 152 [2023-12-16 07:31:59,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:31:59,295 INFO L495 AbstractCegarLoop]: Abstraction has 6376 states and 9519 transitions. [2023-12-16 07:31:59,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand 6376 states and 9519 transitions. [2023-12-16 07:31:59,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:31:59,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:31:59,296 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] [2023-12-16 07:31:59,307 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 (28)] Forceful destruction successful, exit code 0 [2023-12-16 07:31:59,502 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 07:31:59,502 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:31:59,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:31:59,502 INFO L85 PathProgramCache]: Analyzing trace with hash -659420071, now seen corresponding path program 1 times [2023-12-16 07:31:59,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:31:59,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119370609] [2023-12-16 07:31:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:31:59,503 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 07:31:59,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:31:59,504 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 07:31:59,524 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 07:31:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:31:59,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:31:59,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:31:59,659 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 07:31:59,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:31:59,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:31:59,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119370609] [2023-12-16 07:31:59,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119370609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:31:59,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:31:59,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:31:59,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995821525] [2023-12-16 07:31:59,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:31:59,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:31:59,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:31:59,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:31:59,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:31:59,662 INFO L87 Difference]: Start difference. First operand 6376 states and 9519 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:31:59,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:31:59,944 INFO L93 Difference]: Finished difference Result 10773 states and 15359 transitions. [2023-12-16 07:31:59,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:31:59,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:31:59,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:31:59,957 INFO L225 Difference]: With dead ends: 10773 [2023-12-16 07:31:59,957 INFO L226 Difference]: Without dead ends: 6536 [2023-12-16 07:31:59,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:31:59,966 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 56 mSDsluCounter, 8774 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 13166 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:31:59,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 13166 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:31:59,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6536 states. [2023-12-16 07:32:00,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6536 to 6384. [2023-12-16 07:32:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6384 states, 6156 states have (on average 1.501137102014295) internal successors, (9241), 6161 states have internal predecessors, (9241), 124 states have call successors, (124), 101 states have call predecessors, (124), 102 states have return successors, (124), 122 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 07:32:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6384 states to 6384 states and 9489 transitions. [2023-12-16 07:32:00,240 INFO L78 Accepts]: Start accepts. Automaton has 6384 states and 9489 transitions. Word has length 152 [2023-12-16 07:32:00,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:00,241 INFO L495 AbstractCegarLoop]: Abstraction has 6384 states and 9489 transitions. [2023-12-16 07:32:00,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:00,241 INFO L276 IsEmpty]: Start isEmpty. Operand 6384 states and 9489 transitions. [2023-12-16 07:32:00,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:32:00,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:00,242 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] [2023-12-16 07:32:00,246 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 07:32:00,442 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 07:32:00,442 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:00,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:00,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1558210327, now seen corresponding path program 1 times [2023-12-16 07:32:00,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:00,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224966933] [2023-12-16 07:32:00,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:00,444 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 07:32:00,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:00,445 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 07:32:00,446 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 07:32:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:00,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:00,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:00,598 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 07:32:00,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:00,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:00,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224966933] [2023-12-16 07:32:00,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224966933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:00,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:00,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:00,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61950267] [2023-12-16 07:32:00,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:00,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:32:00,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:00,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:32:00,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:32:00,600 INFO L87 Difference]: Start difference. First operand 6384 states and 9489 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:00,832 INFO L93 Difference]: Finished difference Result 10765 states and 15267 transitions. [2023-12-16 07:32:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:00,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:32:00,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:00,842 INFO L225 Difference]: With dead ends: 10765 [2023-12-16 07:32:00,843 INFO L226 Difference]: Without dead ends: 6520 [2023-12-16 07:32:00,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:32:00,850 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 47 mSDsluCounter, 8775 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 13167 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:00,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 13167 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:32:00,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6520 states. [2023-12-16 07:32:01,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6520 to 6392. [2023-12-16 07:32:01,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6392 states, 6164 states have (on average 1.494321868916288) internal successors, (9211), 6169 states have internal predecessors, (9211), 124 states have call successors, (124), 101 states have call predecessors, (124), 102 states have return successors, (124), 122 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 07:32:01,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6392 states to 6392 states and 9459 transitions. [2023-12-16 07:32:01,026 INFO L78 Accepts]: Start accepts. Automaton has 6392 states and 9459 transitions. Word has length 152 [2023-12-16 07:32:01,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:01,026 INFO L495 AbstractCegarLoop]: Abstraction has 6392 states and 9459 transitions. [2023-12-16 07:32:01,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:01,026 INFO L276 IsEmpty]: Start isEmpty. Operand 6392 states and 9459 transitions. [2023-12-16 07:32:01,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:32:01,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:01,027 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] [2023-12-16 07:32:01,031 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 (30)] Ended with exit code 0 [2023-12-16 07:32:01,227 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 07:32:01,228 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:01,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:01,228 INFO L85 PathProgramCache]: Analyzing trace with hash 590859673, now seen corresponding path program 1 times [2023-12-16 07:32:01,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:01,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056206323] [2023-12-16 07:32:01,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:01,229 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 07:32:01,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:01,230 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 07:32:01,230 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 07:32:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:01,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:01,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:01,375 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 07:32:01,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:01,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:01,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056206323] [2023-12-16 07:32:01,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056206323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:01,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:01,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:01,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677431235] [2023-12-16 07:32:01,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:01,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:32:01,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:01,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:32:01,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:32:01,377 INFO L87 Difference]: Start difference. First operand 6392 states and 9459 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:01,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:01,713 INFO L93 Difference]: Finished difference Result 10757 states and 15175 transitions. [2023-12-16 07:32:01,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:01,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:32:01,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:01,721 INFO L225 Difference]: With dead ends: 10757 [2023-12-16 07:32:01,721 INFO L226 Difference]: Without dead ends: 6504 [2023-12-16 07:32:01,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:32:01,725 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 38 mSDsluCounter, 8776 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 13168 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:01,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 13168 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:32:01,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6504 states. [2023-12-16 07:32:01,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6504 to 6400. [2023-12-16 07:32:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6400 states, 6172 states have (on average 1.4875243033052494) internal successors, (9181), 6177 states have internal predecessors, (9181), 124 states have call successors, (124), 101 states have call predecessors, (124), 102 states have return successors, (124), 122 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 07:32:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6400 states to 6400 states and 9429 transitions. [2023-12-16 07:32:01,888 INFO L78 Accepts]: Start accepts. Automaton has 6400 states and 9429 transitions. Word has length 152 [2023-12-16 07:32:01,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:01,888 INFO L495 AbstractCegarLoop]: Abstraction has 6400 states and 9429 transitions. [2023-12-16 07:32:01,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:01,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6400 states and 9429 transitions. [2023-12-16 07:32:01,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:32:01,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:01,890 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] [2023-12-16 07:32:01,897 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 (31)] Forceful destruction successful, exit code 0 [2023-12-16 07:32:02,095 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 07:32:02,095 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:02,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:02,095 INFO L85 PathProgramCache]: Analyzing trace with hash -141107753, now seen corresponding path program 1 times [2023-12-16 07:32:02,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:02,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195497073] [2023-12-16 07:32:02,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:02,096 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 07:32:02,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:02,097 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 07:32:02,097 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 07:32:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:02,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:02,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:02,240 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 07:32:02,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:02,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:02,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195497073] [2023-12-16 07:32:02,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195497073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:02,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:02,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:02,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250257518] [2023-12-16 07:32:02,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:02,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:32:02,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:02,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:32:02,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:32:02,241 INFO L87 Difference]: Start difference. First operand 6400 states and 9429 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:02,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:02,533 INFO L93 Difference]: Finished difference Result 10749 states and 15083 transitions. [2023-12-16 07:32:02,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:02,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:32:02,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:02,542 INFO L225 Difference]: With dead ends: 10749 [2023-12-16 07:32:02,542 INFO L226 Difference]: Without dead ends: 6488 [2023-12-16 07:32:02,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:32:02,547 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 29 mSDsluCounter, 8777 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13169 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:02,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13169 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:32:02,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6488 states. [2023-12-16 07:32:02,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6488 to 6408. [2023-12-16 07:32:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6408 states, 6180 states have (on average 1.4807443365695794) internal successors, (9151), 6185 states have internal predecessors, (9151), 124 states have call successors, (124), 101 states have call predecessors, (124), 102 states have return successors, (124), 122 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 07:32:02,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6408 states to 6408 states and 9399 transitions. [2023-12-16 07:32:02,717 INFO L78 Accepts]: Start accepts. Automaton has 6408 states and 9399 transitions. Word has length 152 [2023-12-16 07:32:02,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:02,718 INFO L495 AbstractCegarLoop]: Abstraction has 6408 states and 9399 transitions. [2023-12-16 07:32:02,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:02,718 INFO L276 IsEmpty]: Start isEmpty. Operand 6408 states and 9399 transitions. [2023-12-16 07:32:02,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:32:02,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:02,719 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] [2023-12-16 07:32:02,724 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 07:32:02,919 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 07:32:02,920 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:02,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:02,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1820466905, now seen corresponding path program 1 times [2023-12-16 07:32:02,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:02,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678724589] [2023-12-16 07:32:02,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:02,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:32:02,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:02,922 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 07:32:02,923 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 07:32:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:03,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:03,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:03,126 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 07:32:03,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:03,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:03,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678724589] [2023-12-16 07:32:03,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678724589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:03,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:03,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:03,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424171476] [2023-12-16 07:32:03,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:03,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:32:03,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:03,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:32:03,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:32:03,129 INFO L87 Difference]: Start difference. First operand 6408 states and 9399 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:03,351 INFO L93 Difference]: Finished difference Result 10741 states and 14991 transitions. [2023-12-16 07:32:03,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:03,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:32:03,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:03,360 INFO L225 Difference]: With dead ends: 10741 [2023-12-16 07:32:03,360 INFO L226 Difference]: Without dead ends: 6472 [2023-12-16 07:32:03,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:32:03,366 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 20 mSDsluCounter, 8778 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 13170 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:03,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 13170 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:32:03,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6472 states. [2023-12-16 07:32:03,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6472 to 6416. [2023-12-16 07:32:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6416 states, 6188 states have (on average 1.4739819004524888) internal successors, (9121), 6193 states have internal predecessors, (9121), 124 states have call successors, (124), 101 states have call predecessors, (124), 102 states have return successors, (124), 122 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 07:32:03,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6416 states to 6416 states and 9369 transitions. [2023-12-16 07:32:03,533 INFO L78 Accepts]: Start accepts. Automaton has 6416 states and 9369 transitions. Word has length 152 [2023-12-16 07:32:03,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:03,533 INFO L495 AbstractCegarLoop]: Abstraction has 6416 states and 9369 transitions. [2023-12-16 07:32:03,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 6416 states and 9369 transitions. [2023-12-16 07:32:03,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:32:03,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:03,534 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] [2023-12-16 07:32:03,539 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 07:32:03,735 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 07:32:03,735 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:03,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:03,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1861141655, now seen corresponding path program 1 times [2023-12-16 07:32:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:03,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805783512] [2023-12-16 07:32:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:03,736 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 07:32:03,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:03,737 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 07:32:03,738 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 07:32:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:03,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:03,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:03,893 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 07:32:03,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:03,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:03,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805783512] [2023-12-16 07:32:03,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805783512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:03,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:03,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:03,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737651806] [2023-12-16 07:32:03,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:03,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:32:03,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:03,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:32:03,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:32:03,895 INFO L87 Difference]: Start difference. First operand 6416 states and 9369 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:04,121 INFO L93 Difference]: Finished difference Result 11113 states and 15400 transitions. [2023-12-16 07:32:04,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:04,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:32:04,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:04,132 INFO L225 Difference]: With dead ends: 11113 [2023-12-16 07:32:04,132 INFO L226 Difference]: Without dead ends: 6836 [2023-12-16 07:32:04,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:32:04,138 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 11 mSDsluCounter, 8779 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13171 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:04,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13171 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:32:04,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6836 states. [2023-12-16 07:32:04,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6836 to 6500. [2023-12-16 07:32:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6500 states, 6272 states have (on average 1.4676339285714286) internal successors, (9205), 6277 states have internal predecessors, (9205), 124 states have call successors, (124), 101 states have call predecessors, (124), 102 states have return successors, (124), 122 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 07:32:04,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6500 states to 6500 states and 9453 transitions. [2023-12-16 07:32:04,378 INFO L78 Accepts]: Start accepts. Automaton has 6500 states and 9453 transitions. Word has length 152 [2023-12-16 07:32:04,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:04,379 INFO L495 AbstractCegarLoop]: Abstraction has 6500 states and 9453 transitions. [2023-12-16 07:32:04,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:04,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6500 states and 9453 transitions. [2023-12-16 07:32:04,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:32:04,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:04,380 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] [2023-12-16 07:32:04,384 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 (34)] Ended with exit code 0 [2023-12-16 07:32:04,580 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 07:32:04,581 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:04,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:04,581 INFO L85 PathProgramCache]: Analyzing trace with hash -167444455, now seen corresponding path program 1 times [2023-12-16 07:32:04,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:04,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376516981] [2023-12-16 07:32:04,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:04,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:32:04,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:04,583 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 07:32:04,583 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 07:32:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:04,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:04,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:04,725 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 07:32:04,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:04,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:04,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376516981] [2023-12-16 07:32:04,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376516981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:04,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:04,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:04,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031037946] [2023-12-16 07:32:04,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:04,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:32:04,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:04,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:32:04,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:32:04,727 INFO L87 Difference]: Start difference. First operand 6500 states and 9453 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:04,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:04,966 INFO L93 Difference]: Finished difference Result 10877 states and 15031 transitions. [2023-12-16 07:32:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:04,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-16 07:32:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:04,976 INFO L225 Difference]: With dead ends: 10877 [2023-12-16 07:32:04,976 INFO L226 Difference]: Without dead ends: 6516 [2023-12-16 07:32:04,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 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 07:32:04,981 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 2 mSDsluCounter, 8779 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13171 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:04,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13171 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:32:04,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6516 states. [2023-12-16 07:32:05,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6516 to 6508. [2023-12-16 07:32:05,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6508 states, 6280 states have (on average 1.460987261146497) internal successors, (9175), 6285 states have internal predecessors, (9175), 124 states have call successors, (124), 101 states have call predecessors, (124), 102 states have return successors, (124), 122 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 07:32:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6508 states to 6508 states and 9423 transitions. [2023-12-16 07:32:05,143 INFO L78 Accepts]: Start accepts. Automaton has 6508 states and 9423 transitions. Word has length 152 [2023-12-16 07:32:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:05,143 INFO L495 AbstractCegarLoop]: Abstraction has 6508 states and 9423 transitions. [2023-12-16 07:32:05,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:32:05,143 INFO L276 IsEmpty]: Start isEmpty. Operand 6508 states and 9423 transitions. [2023-12-16 07:32:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 07:32:05,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:05,144 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] [2023-12-16 07:32:05,148 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 07:32:05,344 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 07:32:05,345 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:05,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:05,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1760828247, now seen corresponding path program 1 times [2023-12-16 07:32:05,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:05,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790535295] [2023-12-16 07:32:05,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:05,346 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 07:32:05,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:05,347 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 07:32:05,362 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 07:32:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:05,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:32:05,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:05,617 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 07:32:05,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:05,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:05,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790535295] [2023-12-16 07:32:05,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790535295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:05,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:05,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:32:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910931753] [2023-12-16 07:32:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:05,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:32:05,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:05,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:32:05,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:32:05,619 INFO L87 Difference]: Start difference. First operand 6508 states and 9423 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:32:06,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:06,102 INFO L93 Difference]: Finished difference Result 15159 states and 20261 transitions. [2023-12-16 07:32:06,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:32:06,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 152 [2023-12-16 07:32:06,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:06,120 INFO L225 Difference]: With dead ends: 15159 [2023-12-16 07:32:06,120 INFO L226 Difference]: Without dead ends: 10790 [2023-12-16 07:32:06,132 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 07:32:06,132 INFO L413 NwaCegarLoop]: 4391 mSDtfsCounter, 4263 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4263 SdHoareTripleChecker+Valid, 4787 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:06,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4263 Valid, 4787 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:32:06,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10790 states. [2023-12-16 07:32:06,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10790 to 10786. [2023-12-16 07:32:06,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10786 states, 10338 states have (on average 1.373283033468756) internal successors, (14197), 10349 states have internal predecessors, (14197), 242 states have call successors, (242), 201 states have call predecessors, (242), 204 states have return successors, (244), 236 states have call predecessors, (244), 240 states have call successors, (244) [2023-12-16 07:32:06,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10786 states to 10786 states and 14683 transitions. [2023-12-16 07:32:06,447 INFO L78 Accepts]: Start accepts. Automaton has 10786 states and 14683 transitions. Word has length 152 [2023-12-16 07:32:06,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:06,447 INFO L495 AbstractCegarLoop]: Abstraction has 10786 states and 14683 transitions. [2023-12-16 07:32:06,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:32:06,447 INFO L276 IsEmpty]: Start isEmpty. Operand 10786 states and 14683 transitions. [2023-12-16 07:32:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-16 07:32:06,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:06,456 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, 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, 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, 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 07:32:06,462 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 (36)] Forceful destruction successful, exit code 0 [2023-12-16 07:32:06,662 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 07:32:06,662 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:06,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:06,663 INFO L85 PathProgramCache]: Analyzing trace with hash -749700578, now seen corresponding path program 1 times [2023-12-16 07:32:06,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:06,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638108693] [2023-12-16 07:32:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:06,663 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 07:32:06,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:06,665 INFO L229 MonitoredProcess]: Starting monitored process 37 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 07:32:06,673 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 (37)] Waiting until timeout for monitored process [2023-12-16 07:32:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:06,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:32:06,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-16 07:32:07,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:07,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:07,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638108693] [2023-12-16 07:32:07,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638108693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:07,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:07,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:07,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333594522] [2023-12-16 07:32:07,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:07,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:32:07,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:07,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:32:07,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:32:07,110 INFO L87 Difference]: Start difference. First operand 10786 states and 14683 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:32:08,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:08,214 INFO L93 Difference]: Finished difference Result 28488 states and 36531 transitions. [2023-12-16 07:32:08,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:32:08,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 244 [2023-12-16 07:32:08,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:08,258 INFO L225 Difference]: With dead ends: 28488 [2023-12-16 07:32:08,258 INFO L226 Difference]: Without dead ends: 19842 [2023-12-16 07:32:08,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 242 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 07:32:08,275 INFO L413 NwaCegarLoop]: 4495 mSDtfsCounter, 4595 mSDsluCounter, 4687 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4600 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:08,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4600 Valid, 9182 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:32:08,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19842 states. [2023-12-16 07:32:08,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19842 to 19838. [2023-12-16 07:32:08,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19838 states, 18939 states have (on average 1.3097312424098422) internal successors, (24805), 18967 states have internal predecessors, (24805), 473 states have call successors, (473), 401 states have call predecessors, (473), 424 states have return successors, (519), 471 states have call predecessors, (519), 471 states have call successors, (519) [2023-12-16 07:32:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19838 states to 19838 states and 25797 transitions. [2023-12-16 07:32:08,980 INFO L78 Accepts]: Start accepts. Automaton has 19838 states and 25797 transitions. Word has length 244 [2023-12-16 07:32:08,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:08,980 INFO L495 AbstractCegarLoop]: Abstraction has 19838 states and 25797 transitions. [2023-12-16 07:32:08,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:32:08,980 INFO L276 IsEmpty]: Start isEmpty. Operand 19838 states and 25797 transitions. [2023-12-16 07:32:08,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-16 07:32:08,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:08,993 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, 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, 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, 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 07:32:09,002 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 (37)] Forceful destruction successful, exit code 0 [2023-12-16 07:32:09,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /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 07:32:09,200 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:09,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:09,201 INFO L85 PathProgramCache]: Analyzing trace with hash 546754336, now seen corresponding path program 1 times [2023-12-16 07:32:09,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:09,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759780958] [2023-12-16 07:32:09,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:09,201 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 07:32:09,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:09,202 INFO L229 MonitoredProcess]: Starting monitored process 38 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 07:32:09,204 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 (38)] Waiting until timeout for monitored process [2023-12-16 07:32:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:09,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:32:09,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:09,382 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-16 07:32:09,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:09,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:09,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759780958] [2023-12-16 07:32:09,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759780958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:09,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:09,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:32:09,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666540210] [2023-12-16 07:32:09,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:09,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:32:09,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:09,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:32:09,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:32:09,385 INFO L87 Difference]: Start difference. First operand 19838 states and 25797 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:32:10,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:10,043 INFO L93 Difference]: Finished difference Result 37522 states and 47576 transitions. [2023-12-16 07:32:10,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:32:10,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 244 [2023-12-16 07:32:10,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:10,073 INFO L225 Difference]: With dead ends: 37522 [2023-12-16 07:32:10,073 INFO L226 Difference]: Without dead ends: 19824 [2023-12-16 07:32:10,093 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 07:32:10,094 INFO L413 NwaCegarLoop]: 4391 mSDtfsCounter, 469 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 8348 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:10,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 8348 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:32:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19824 states. Received shutdown request... [2023-12-16 07:32:10,655 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 07:32:10,655 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 (38)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:32:10,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19824 to 19824. [2023-12-16 07:32:10,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19824 states, 18928 states have (on average 1.3093829247675401) internal successors, (24784), 18955 states have internal predecessors, (24784), 470 states have call successors, (470), 401 states have call predecessors, (470), 424 states have return successors, (516), 468 states have call predecessors, (516), 468 states have call successors, (516) [2023-12-16 07:32:10,784 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:32:10,790 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 (38)] Ended with exit code 0 [2023-12-16 07:32:10,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /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 07:32:10,986 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 07:32:10,987 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:32:10,991 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 07:32:10,993 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:32:10,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:32:10 BoogieIcfgContainer [2023-12-16 07:32:10,995 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:32:10,995 INFO L158 Benchmark]: Toolchain (without parser) took 54521.78ms. Allocated memory was 276.8MB in the beginning and 1.9GB in the end (delta: 1.6GB). Free memory was 190.1MB in the beginning and 707.8MB in the end (delta: -517.8MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 07:32:10,996 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 191.9MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:32:10,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2993.71ms. Allocated memory was 276.8MB in the beginning and 428.9MB in the end (delta: 152.0MB). Free memory was 189.8MB in the beginning and 249.3MB in the end (delta: -59.5MB). Peak memory consumption was 114.5MB. Max. memory is 8.0GB. [2023-12-16 07:32:10,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 544.78ms. Allocated memory is still 428.9MB. Free memory was 249.3MB in the beginning and 282.4MB in the end (delta: -33.0MB). Peak memory consumption was 105.4MB. Max. memory is 8.0GB. [2023-12-16 07:32:10,996 INFO L158 Benchmark]: Boogie Preprocessor took 630.82ms. Allocated memory is still 428.9MB. Free memory was 282.4MB in the beginning and 257.2MB in the end (delta: 25.2MB). Peak memory consumption was 99.6MB. Max. memory is 8.0GB. [2023-12-16 07:32:10,996 INFO L158 Benchmark]: RCFGBuilder took 9419.48ms. Allocated memory was 428.9MB in the beginning and 1.1GB in the end (delta: 708.8MB). Free memory was 256.7MB in the beginning and 860.8MB in the end (delta: -604.1MB). Peak memory consumption was 694.5MB. Max. memory is 8.0GB. [2023-12-16 07:32:10,996 INFO L158 Benchmark]: TraceAbstraction took 40925.35ms. Allocated memory was 1.1GB in the beginning and 1.9GB in the end (delta: 737.1MB). Free memory was 860.3MB in the beginning and 707.8MB in the end (delta: 152.5MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-16 07:32:10,997 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 191.9MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2993.71ms. Allocated memory was 276.8MB in the beginning and 428.9MB in the end (delta: 152.0MB). Free memory was 189.8MB in the beginning and 249.3MB in the end (delta: -59.5MB). Peak memory consumption was 114.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 544.78ms. Allocated memory is still 428.9MB. Free memory was 249.3MB in the beginning and 282.4MB in the end (delta: -33.0MB). Peak memory consumption was 105.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 630.82ms. Allocated memory is still 428.9MB. Free memory was 282.4MB in the beginning and 257.2MB in the end (delta: 25.2MB). Peak memory consumption was 99.6MB. Max. memory is 8.0GB. * RCFGBuilder took 9419.48ms. Allocated memory was 428.9MB in the beginning and 1.1GB in the end (delta: 708.8MB). Free memory was 256.7MB in the beginning and 860.8MB in the end (delta: -604.1MB). Peak memory consumption was 694.5MB. Max. memory is 8.0GB. * TraceAbstraction took 40925.35ms. Allocated memory was 1.1GB in the beginning and 1.9GB in the end (delta: 737.1MB). Free memory was 860.3MB in the beginning and 707.8MB in the end (delta: 152.5MB). Peak memory consumption was 1.1GB. 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: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 11088]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11088). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2456 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 40.9s, OverallIterations: 37, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113607 SdHoareTripleChecker+Valid, 11.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113203 mSDsluCounter, 447209 SdHoareTripleChecker+Invalid, 9.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 287002 mSDsCounter, 864 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13271 IncrementalHoareTripleChecker+Invalid, 14135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 864 mSolverCounterUnsat, 160207 mSDtfsCounter, 13271 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5794 GetRequests, 5681 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19838occurred in iteration=36, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.2s AutomataMinimizationTime, 37 MinimizatonAttempts, 2499 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 5808 NumberOfCodeBlocks, 5808 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 5771 ConstructedInterpolants, 0 QuantifiedInterpolants, 8573 SizeOfPredicates, 11 NumberOfNonLiveVariables, 16256 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 37 InterpolantComputations, 37 PerfectInterpolantSequences, 146/146 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