/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_label49+token_ring.09.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 22:17:06,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 22:17:06,707 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 22:17:06,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 22:17:06,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 22:17:06,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 22:17:06,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 22:17:06,728 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 22:17:06,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 22:17:06,733 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 22:17:06,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 22:17:06,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 22:17:06,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 22:17:06,735 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 22:17:06,735 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 22:17:06,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 22:17:06,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 22:17:06,736 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 22:17:06,736 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 22:17:06,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 22:17:06,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 22:17:06,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 22:17:06,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 22:17:06,737 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 22:17:06,737 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 22:17:06,737 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 22:17:06,737 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 22:17:06,737 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 22:17:06,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 22:17:06,738 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 22:17:06,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 22:17:06,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 22:17:06,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 22:17:06,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 22:17:06,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 22:17:06,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 22:17:06,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 22:17:06,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 22:17:06,739 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 22:17:06,739 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 22:17:06,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 22:17:06,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 22:17:06,740 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 22:17:06,740 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 22:17:06,740 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 22:17:06,740 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 22:17:06,740 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 22:17:06,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 22:17:06,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 22:17:06,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 22:17:06,941 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 22:17:06,941 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 22:17:06,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.09.cil-1.c [2023-12-21 22:17:08,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 22:17:08,499 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 22:17:08,500 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.09.cil-1.c [2023-12-21 22:17:08,549 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df7ac88d2/91852720e83f465ebd35177a1493461d/FLAG45bfa37a7 [2023-12-21 22:17:08,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df7ac88d2/91852720e83f465ebd35177a1493461d [2023-12-21 22:17:08,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 22:17:08,565 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 22:17:08,566 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 22:17:08,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 22:17:08,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 22:17:08,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:17:08" (1/1) ... [2023-12-21 22:17:08,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ca24c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:08, skipping insertion in model container [2023-12-21 22:17:08,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:17:08" (1/1) ... [2023-12-21 22:17:08,832 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 22:17:10,093 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_label49+token_ring.09.cil-1.c[380593,380606] [2023-12-21 22:17:10,114 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_label49+token_ring.09.cil-1.c[383339,383352] [2023-12-21 22:17:10,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 22:17:10,308 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 22:17:10,965 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_label49+token_ring.09.cil-1.c[380593,380606] [2023-12-21 22:17:10,970 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_label49+token_ring.09.cil-1.c[383339,383352] [2023-12-21 22:17:10,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 22:17:11,042 INFO L206 MainTranslator]: Completed translation [2023-12-21 22:17:11,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11 WrapperNode [2023-12-21 22:17:11,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 22:17:11,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 22:17:11,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 22:17:11,045 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 22:17:11,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,479 INFO L138 Inliner]: procedures = 63, calls = 68, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 13017 [2023-12-21 22:17:11,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 22:17:11,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 22:17:11,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 22:17:11,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 22:17:11,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,550 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,617 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]. [2023-12-21 22:17:11,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,730 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 22:17:11,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 22:17:11,965 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 22:17:11,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 22:17:11,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (1/1) ... [2023-12-21 22:17:11,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 22:17:11,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 22:17:12,002 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) [2023-12-21 22:17:12,132 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 [2023-12-21 22:17:12,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 22:17:12,154 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-21 22:17:12,154 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-21 22:17:12,154 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-21 22:17:12,154 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-21 22:17:12,154 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-21 22:17:12,154 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-21 22:17:12,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 22:17:12,155 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-21 22:17:12,155 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-21 22:17:12,155 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-21 22:17:12,155 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-21 22:17:12,156 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-21 22:17:12,156 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-21 22:17:12,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 22:17:12,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 22:17:12,333 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 22:17:12,334 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 22:17:19,878 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 22:17:19,966 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 22:17:19,967 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-12-21 22:17:19,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:17:19 BoogieIcfgContainer [2023-12-21 22:17:19,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 22:17:19,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 22:17:19,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 22:17:19,971 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 22:17:19,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:17:08" (1/3) ... [2023-12-21 22:17:19,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5d36b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:17:19, skipping insertion in model container [2023-12-21 22:17:19,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:11" (2/3) ... [2023-12-21 22:17:19,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5d36b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:17:19, skipping insertion in model container [2023-12-21 22:17:19,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:17:19" (3/3) ... [2023-12-21 22:17:19,973 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.09.cil-1.c [2023-12-21 22:17:19,983 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 22:17:19,984 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-21 22:17:20,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 22:17:20,045 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;@529075ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 22:17:20,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-21 22:17:20,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 2402 states, 2370 states have (on average 1.8784810126582279) internal successors, (4452), 2373 states have internal predecessors, (4452), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-21 22:17:20,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:20,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:20,066 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] [2023-12-21 22:17:20,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:20,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:20,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1068721783, now seen corresponding path program 1 times [2023-12-21 22:17:20,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:20,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490702498] [2023-12-21 22:17:20,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:20,080 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 [2023-12-21 22:17:20,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:20,082 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) [2023-12-21 22:17:20,100 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 [2023-12-21 22:17:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:20,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:20,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:20,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:20,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:20,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:20,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490702498] [2023-12-21 22:17:20,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490702498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:20,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:20,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:17:20,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97588699] [2023-12-21 22:17:20,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:20,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:20,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:20,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:20,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:20,328 INFO L87 Difference]: Start difference. First operand has 2402 states, 2370 states have (on average 1.8784810126582279) internal successors, (4452), 2373 states have internal predecessors, (4452), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:20,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:20,517 INFO L93 Difference]: Finished difference Result 4798 states and 8983 transitions. [2023-12-21 22:17:20,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:20,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:20,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:20,534 INFO L225 Difference]: With dead ends: 4798 [2023-12-21 22:17:20,534 INFO L226 Difference]: Without dead ends: 2398 [2023-12-21 22:17:20,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:20,543 INFO L413 NwaCegarLoop]: 4371 mSDtfsCounter, 441 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 8330 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:20,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 8330 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:20,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2023-12-21 22:17:20,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2398. [2023-12-21 22:17:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2367 states have (on average 1.8411491339247994) internal successors, (4358), 2369 states have internal predecessors, (4358), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-21 22:17:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 4404 transitions. [2023-12-21 22:17:20,633 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 4404 transitions. Word has length 131 [2023-12-21 22:17:20,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:20,634 INFO L495 AbstractCegarLoop]: Abstraction has 2398 states and 4404 transitions. [2023-12-21 22:17:20,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:20,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 4404 transitions. [2023-12-21 22:17:20,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:20,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:20,637 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] [2023-12-21 22:17:20,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-21 22:17:20,844 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 [2023-12-21 22:17:20,845 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:20,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:20,846 INFO L85 PathProgramCache]: Analyzing trace with hash 981687115, now seen corresponding path program 1 times [2023-12-21 22:17:20,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:20,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225536550] [2023-12-21 22:17:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:20,860 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 [2023-12-21 22:17:20,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:20,861 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) [2023-12-21 22:17:20,880 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 [2023-12-21 22:17:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:21,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:21,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:21,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:21,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:21,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225536550] [2023-12-21 22:17:21,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225536550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:21,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:21,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:21,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321843403] [2023-12-21 22:17:21,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:21,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:21,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:21,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:21,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:21,102 INFO L87 Difference]: Start difference. First operand 2398 states and 4404 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:21,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:21,730 INFO L93 Difference]: Finished difference Result 2959 states and 5319 transitions. [2023-12-21 22:17:21,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 22:17:21,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:21,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:21,741 INFO L225 Difference]: With dead ends: 2959 [2023-12-21 22:17:21,741 INFO L226 Difference]: Without dead ends: 2697 [2023-12-21 22:17:21,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:21,744 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 4807 mSDsluCounter, 8731 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4824 SdHoareTripleChecker+Valid, 13014 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:21,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4824 Valid, 13014 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 22:17:21,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2023-12-21 22:17:21,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2674. [2023-12-21 22:17:21,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8216195569136746) internal successors, (4769), 2621 states have internal predecessors, (4769), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:21,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4852 transitions. [2023-12-21 22:17:21,799 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4852 transitions. Word has length 131 [2023-12-21 22:17:21,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:21,799 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4852 transitions. [2023-12-21 22:17:21,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:21,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4852 transitions. [2023-12-21 22:17:21,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:21,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:21,801 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] [2023-12-21 22:17:21,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-21 22:17:22,006 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 [2023-12-21 22:17:22,006 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:22,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:22,007 INFO L85 PathProgramCache]: Analyzing trace with hash -926603697, now seen corresponding path program 1 times [2023-12-21 22:17:22,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:22,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932904041] [2023-12-21 22:17:22,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:22,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:17:22,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:22,010 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) [2023-12-21 22:17:22,023 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 [2023-12-21 22:17:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:22,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:22,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:22,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:22,207 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:22,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:22,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932904041] [2023-12-21 22:17:22,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932904041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:22,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:22,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:22,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726690968] [2023-12-21 22:17:22,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:22,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:22,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:22,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:22,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:22,209 INFO L87 Difference]: Start difference. First operand 2674 states and 4852 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:22,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:22,610 INFO L93 Difference]: Finished difference Result 3212 states and 5727 transitions. [2023-12-21 22:17:22,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:22,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:22,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:22,619 INFO L225 Difference]: With dead ends: 3212 [2023-12-21 22:17:22,619 INFO L226 Difference]: Without dead ends: 2674 [2023-12-21 22:17:22,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:22,621 INFO L413 NwaCegarLoop]: 4235 mSDtfsCounter, 4555 mSDsluCounter, 8348 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4572 SdHoareTripleChecker+Valid, 12583 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:22,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4572 Valid, 12583 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-21 22:17:22,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-21 22:17:22,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8189457601222307) internal successors, (4762), 2621 states have internal predecessors, (4762), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:22,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4845 transitions. [2023-12-21 22:17:22,670 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4845 transitions. Word has length 131 [2023-12-21 22:17:22,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:22,670 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4845 transitions. [2023-12-21 22:17:22,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4845 transitions. [2023-12-21 22:17:22,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:22,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:22,671 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] [2023-12-21 22:17:22,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-21 22:17:22,876 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 [2023-12-21 22:17:22,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:22,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:22,965 INFO L85 PathProgramCache]: Analyzing trace with hash -849614133, now seen corresponding path program 1 times [2023-12-21 22:17:22,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:22,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41984947] [2023-12-21 22:17:22,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:22,966 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 [2023-12-21 22:17:22,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:22,970 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) [2023-12-21 22:17:23,005 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 [2023-12-21 22:17:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:23,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:23,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:23,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:23,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:23,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41984947] [2023-12-21 22:17:23,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41984947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:23,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:23,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:23,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6294612] [2023-12-21 22:17:23,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:23,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:23,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:23,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:23,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:23,178 INFO L87 Difference]: Start difference. First operand 2674 states and 4845 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:23,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:23,561 INFO L93 Difference]: Finished difference Result 3212 states and 5713 transitions. [2023-12-21 22:17:23,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:23,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:23,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:23,568 INFO L225 Difference]: With dead ends: 3212 [2023-12-21 22:17:23,569 INFO L226 Difference]: Without dead ends: 2674 [2023-12-21 22:17:23,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:23,571 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 4548 mSDsluCounter, 8344 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4565 SdHoareTripleChecker+Valid, 12576 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:23,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4565 Valid, 12576 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:23,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-21 22:17:23,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-21 22:17:23,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8162719633307869) internal successors, (4755), 2621 states have internal predecessors, (4755), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4838 transitions. [2023-12-21 22:17:23,612 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4838 transitions. Word has length 131 [2023-12-21 22:17:23,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:23,612 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4838 transitions. [2023-12-21 22:17:23,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4838 transitions. [2023-12-21 22:17:23,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:23,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:23,613 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] [2023-12-21 22:17:23,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-21 22:17:23,818 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 [2023-12-21 22:17:23,819 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:23,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:23,819 INFO L85 PathProgramCache]: Analyzing trace with hash -929980857, now seen corresponding path program 1 times [2023-12-21 22:17:23,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:23,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219619754] [2023-12-21 22:17:23,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:23,820 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 [2023-12-21 22:17:23,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:23,821 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) [2023-12-21 22:17:23,823 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 [2023-12-21 22:17:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:23,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:23,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:24,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:24,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:24,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:24,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219619754] [2023-12-21 22:17:24,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219619754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:24,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:24,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:24,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598925536] [2023-12-21 22:17:24,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:24,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:24,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:24,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:24,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:24,004 INFO L87 Difference]: Start difference. First operand 2674 states and 4838 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:24,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:24,358 INFO L93 Difference]: Finished difference Result 3212 states and 5699 transitions. [2023-12-21 22:17:24,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:24,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:24,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:24,366 INFO L225 Difference]: With dead ends: 3212 [2023-12-21 22:17:24,366 INFO L226 Difference]: Without dead ends: 2674 [2023-12-21 22:17:24,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:24,368 INFO L413 NwaCegarLoop]: 4229 mSDtfsCounter, 4542 mSDsluCounter, 8340 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4559 SdHoareTripleChecker+Valid, 12569 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:24,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4559 Valid, 12569 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:24,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-21 22:17:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-21 22:17:24,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.813598166539343) internal successors, (4748), 2621 states have internal predecessors, (4748), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:24,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4831 transitions. [2023-12-21 22:17:24,412 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4831 transitions. Word has length 131 [2023-12-21 22:17:24,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:24,413 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4831 transitions. [2023-12-21 22:17:24,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:24,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4831 transitions. [2023-12-21 22:17:24,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:24,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:24,414 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] [2023-12-21 22:17:24,419 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 [2023-12-21 22:17:24,618 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 [2023-12-21 22:17:24,619 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:24,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash -2040951989, now seen corresponding path program 1 times [2023-12-21 22:17:24,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:24,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284014742] [2023-12-21 22:17:24,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:24,620 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 [2023-12-21 22:17:24,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:24,633 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) [2023-12-21 22:17:24,666 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 [2023-12-21 22:17:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:24,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:24,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:24,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:24,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:24,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284014742] [2023-12-21 22:17:24,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284014742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:24,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:24,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:24,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655205456] [2023-12-21 22:17:24,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:24,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:24,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:24,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:24,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:24,817 INFO L87 Difference]: Start difference. First operand 2674 states and 4831 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:25,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:25,191 INFO L93 Difference]: Finished difference Result 3212 states and 5685 transitions. [2023-12-21 22:17:25,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:25,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:25,201 INFO L225 Difference]: With dead ends: 3212 [2023-12-21 22:17:25,201 INFO L226 Difference]: Without dead ends: 2674 [2023-12-21 22:17:25,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:25,206 INFO L413 NwaCegarLoop]: 4226 mSDtfsCounter, 4536 mSDsluCounter, 8336 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 12562 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:25,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 12562 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:25,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-21 22:17:25,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-21 22:17:25,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8109243697478992) internal successors, (4741), 2621 states have internal predecessors, (4741), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:25,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4824 transitions. [2023-12-21 22:17:25,264 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4824 transitions. Word has length 131 [2023-12-21 22:17:25,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:25,264 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4824 transitions. [2023-12-21 22:17:25,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:25,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4824 transitions. [2023-12-21 22:17:25,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:25,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:25,266 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] [2023-12-21 22:17:25,273 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 [2023-12-21 22:17:25,473 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 [2023-12-21 22:17:25,476 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:25,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:25,477 INFO L85 PathProgramCache]: Analyzing trace with hash 555609543, now seen corresponding path program 1 times [2023-12-21 22:17:25,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:25,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145510169] [2023-12-21 22:17:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:25,477 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 [2023-12-21 22:17:25,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:25,501 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) [2023-12-21 22:17:25,505 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 [2023-12-21 22:17:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:25,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:25,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:25,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:25,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:25,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145510169] [2023-12-21 22:17:25,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145510169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:25,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:25,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:25,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599764841] [2023-12-21 22:17:25,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:25,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:25,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:25,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:25,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:25,685 INFO L87 Difference]: Start difference. First operand 2674 states and 4824 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:26,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:26,048 INFO L93 Difference]: Finished difference Result 3212 states and 5671 transitions. [2023-12-21 22:17:26,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:26,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:26,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:26,056 INFO L225 Difference]: With dead ends: 3212 [2023-12-21 22:17:26,056 INFO L226 Difference]: Without dead ends: 2674 [2023-12-21 22:17:26,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:26,058 INFO L413 NwaCegarLoop]: 4223 mSDtfsCounter, 4530 mSDsluCounter, 8332 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4547 SdHoareTripleChecker+Valid, 12555 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:26,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4547 Valid, 12555 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:26,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-21 22:17:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-21 22:17:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8082505729564553) internal successors, (4734), 2621 states have internal predecessors, (4734), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:26,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4817 transitions. [2023-12-21 22:17:26,108 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4817 transitions. Word has length 131 [2023-12-21 22:17:26,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:26,108 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4817 transitions. [2023-12-21 22:17:26,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:26,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4817 transitions. [2023-12-21 22:17:26,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:26,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:26,110 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] [2023-12-21 22:17:26,140 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 (8)] Ended with exit code 0 [2023-12-21 22:17:26,315 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 [2023-12-21 22:17:26,315 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:26,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:26,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1586250935, now seen corresponding path program 1 times [2023-12-21 22:17:26,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:26,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112280200] [2023-12-21 22:17:26,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:26,317 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 [2023-12-21 22:17:26,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:26,319 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) [2023-12-21 22:17:26,350 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 [2023-12-21 22:17:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:26,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:26,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:26,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:26,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:26,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112280200] [2023-12-21 22:17:26,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112280200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:26,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:26,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:26,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281533346] [2023-12-21 22:17:26,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:26,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:26,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:26,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:26,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:26,501 INFO L87 Difference]: Start difference. First operand 2674 states and 4817 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:26,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:26,857 INFO L93 Difference]: Finished difference Result 3212 states and 5657 transitions. [2023-12-21 22:17:26,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:26,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:26,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:26,865 INFO L225 Difference]: With dead ends: 3212 [2023-12-21 22:17:26,865 INFO L226 Difference]: Without dead ends: 2674 [2023-12-21 22:17:26,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:26,867 INFO L413 NwaCegarLoop]: 4220 mSDtfsCounter, 4524 mSDsluCounter, 8328 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4541 SdHoareTripleChecker+Valid, 12548 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:26,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4541 Valid, 12548 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:26,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-21 22:17:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-21 22:17:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8055767761650114) internal successors, (4727), 2621 states have internal predecessors, (4727), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4810 transitions. [2023-12-21 22:17:27,036 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4810 transitions. Word has length 131 [2023-12-21 22:17:27,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:27,036 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4810 transitions. [2023-12-21 22:17:27,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:27,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4810 transitions. [2023-12-21 22:17:27,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:27,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:27,038 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] [2023-12-21 22:17:27,056 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 (9)] Ended with exit code 0 [2023-12-21 22:17:27,242 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 [2023-12-21 22:17:27,243 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:27,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:27,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2108067013, now seen corresponding path program 1 times [2023-12-21 22:17:27,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:27,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267348634] [2023-12-21 22:17:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:27,244 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 [2023-12-21 22:17:27,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:27,245 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) [2023-12-21 22:17:27,246 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 [2023-12-21 22:17:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:27,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:27,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:27,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:27,438 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:27,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:27,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267348634] [2023-12-21 22:17:27,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267348634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:27,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:27,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:27,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072887440] [2023-12-21 22:17:27,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:27,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:27,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:27,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:27,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:27,440 INFO L87 Difference]: Start difference. First operand 2674 states and 4810 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:27,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:27,831 INFO L93 Difference]: Finished difference Result 3212 states and 5643 transitions. [2023-12-21 22:17:27,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:27,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:27,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:27,838 INFO L225 Difference]: With dead ends: 3212 [2023-12-21 22:17:27,839 INFO L226 Difference]: Without dead ends: 2674 [2023-12-21 22:17:27,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:27,841 INFO L413 NwaCegarLoop]: 4217 mSDtfsCounter, 4518 mSDsluCounter, 8324 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4535 SdHoareTripleChecker+Valid, 12541 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:27,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4535 Valid, 12541 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:27,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-21 22:17:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-21 22:17:27,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8029029793735676) internal successors, (4720), 2621 states have internal predecessors, (4720), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:27,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4803 transitions. [2023-12-21 22:17:27,899 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4803 transitions. Word has length 131 [2023-12-21 22:17:27,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:27,899 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4803 transitions. [2023-12-21 22:17:27,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:27,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4803 transitions. [2023-12-21 22:17:27,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:27,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:27,901 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] [2023-12-21 22:17:27,926 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 [2023-12-21 22:17:28,105 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 [2023-12-21 22:17:28,105 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:28,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:28,106 INFO L85 PathProgramCache]: Analyzing trace with hash -682255415, now seen corresponding path program 1 times [2023-12-21 22:17:28,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:28,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791198083] [2023-12-21 22:17:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:28,107 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 [2023-12-21 22:17:28,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:28,108 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) [2023-12-21 22:17:28,109 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 [2023-12-21 22:17:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:28,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:28,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:28,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:28,271 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:28,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:28,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791198083] [2023-12-21 22:17:28,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791198083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:28,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:28,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:28,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395814587] [2023-12-21 22:17:28,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:28,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:28,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:28,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:28,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:28,273 INFO L87 Difference]: Start difference. First operand 2674 states and 4803 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:28,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:28,626 INFO L93 Difference]: Finished difference Result 3212 states and 5629 transitions. [2023-12-21 22:17:28,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:28,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:28,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:28,666 INFO L225 Difference]: With dead ends: 3212 [2023-12-21 22:17:28,667 INFO L226 Difference]: Without dead ends: 2674 [2023-12-21 22:17:28,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:28,671 INFO L413 NwaCegarLoop]: 4214 mSDtfsCounter, 4512 mSDsluCounter, 8320 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4529 SdHoareTripleChecker+Valid, 12534 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:28,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4529 Valid, 12534 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-21 22:17:28,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2023-12-21 22:17:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8002291825821237) internal successors, (4713), 2621 states have internal predecessors, (4713), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-21 22:17:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4796 transitions. [2023-12-21 22:17:28,739 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4796 transitions. Word has length 131 [2023-12-21 22:17:28,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:28,740 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 4796 transitions. [2023-12-21 22:17:28,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:28,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4796 transitions. [2023-12-21 22:17:28,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:28,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:28,741 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] [2023-12-21 22:17:28,746 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 [2023-12-21 22:17:28,945 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 [2023-12-21 22:17:28,946 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:28,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:28,947 INFO L85 PathProgramCache]: Analyzing trace with hash 197565509, now seen corresponding path program 1 times [2023-12-21 22:17:28,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:28,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951985215] [2023-12-21 22:17:28,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:28,947 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 [2023-12-21 22:17:28,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:28,948 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) [2023-12-21 22:17:28,949 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 [2023-12-21 22:17:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:29,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:29,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:29,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:29,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:29,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:29,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951985215] [2023-12-21 22:17:29,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951985215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:29,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:29,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:29,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046878846] [2023-12-21 22:17:29,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:29,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:29,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:29,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:29,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:29,121 INFO L87 Difference]: Start difference. First operand 2674 states and 4796 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:29,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:29,571 INFO L93 Difference]: Finished difference Result 3342 states and 5827 transitions. [2023-12-21 22:17:29,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:29,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:29,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:29,577 INFO L225 Difference]: With dead ends: 3342 [2023-12-21 22:17:29,577 INFO L226 Difference]: Without dead ends: 2804 [2023-12-21 22:17:29,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:29,579 INFO L413 NwaCegarLoop]: 4212 mSDtfsCounter, 4592 mSDsluCounter, 8316 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4609 SdHoareTripleChecker+Valid, 12528 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:29,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4609 Valid, 12528 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:29,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2023-12-21 22:17:29,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2804. [2023-12-21 22:17:29,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 2742 states have (on average 1.7826404084609775) internal successors, (4888), 2745 states have internal predecessors, (4888), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-21 22:17:29,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 4975 transitions. [2023-12-21 22:17:29,645 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 4975 transitions. Word has length 131 [2023-12-21 22:17:29,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:29,645 INFO L495 AbstractCegarLoop]: Abstraction has 2804 states and 4975 transitions. [2023-12-21 22:17:29,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:29,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 4975 transitions. [2023-12-21 22:17:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:29,646 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:29,647 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] [2023-12-21 22:17:29,661 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 [2023-12-21 22:17:29,851 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 [2023-12-21 22:17:29,851 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:29,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:29,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1607103551, now seen corresponding path program 1 times [2023-12-21 22:17:29,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:29,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932976663] [2023-12-21 22:17:29,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:29,852 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 [2023-12-21 22:17:29,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:29,856 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) [2023-12-21 22:17:29,857 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 [2023-12-21 22:17:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:29,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:29,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:30,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:30,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:30,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:30,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932976663] [2023-12-21 22:17:30,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932976663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:30,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:30,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:30,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159199877] [2023-12-21 22:17:30,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:30,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:30,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:30,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:30,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:30,029 INFO L87 Difference]: Start difference. First operand 2804 states and 4975 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:30,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:30,518 INFO L93 Difference]: Finished difference Result 3602 states and 6185 transitions. [2023-12-21 22:17:30,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:30,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:30,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:30,524 INFO L225 Difference]: With dead ends: 3602 [2023-12-21 22:17:30,524 INFO L226 Difference]: Without dead ends: 2934 [2023-12-21 22:17:30,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:30,526 INFO L413 NwaCegarLoop]: 4209 mSDtfsCounter, 4586 mSDsluCounter, 8312 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4603 SdHoareTripleChecker+Valid, 12521 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:30,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4603 Valid, 12521 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:30,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2023-12-21 22:17:30,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2934. [2023-12-21 22:17:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2866 states have (on average 1.7651779483600838) internal successors, (5059), 2869 states have internal predecessors, (5059), 45 states have call successors, (45), 20 states have call predecessors, (45), 21 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-21 22:17:30,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 5150 transitions. [2023-12-21 22:17:30,594 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 5150 transitions. Word has length 131 [2023-12-21 22:17:30,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:30,594 INFO L495 AbstractCegarLoop]: Abstraction has 2934 states and 5150 transitions. [2023-12-21 22:17:30,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 5150 transitions. [2023-12-21 22:17:30,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:30,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:30,595 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] [2023-12-21 22:17:30,610 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 [2023-12-21 22:17:30,800 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 [2023-12-21 22:17:30,800 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:30,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:30,800 INFO L85 PathProgramCache]: Analyzing trace with hash 584242758, now seen corresponding path program 1 times [2023-12-21 22:17:30,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:30,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681010493] [2023-12-21 22:17:30,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:30,801 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 [2023-12-21 22:17:30,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:30,817 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) [2023-12-21 22:17:30,832 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 [2023-12-21 22:17:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:30,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:30,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:30,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:30,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:30,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:30,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681010493] [2023-12-21 22:17:30,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681010493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:30,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:30,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:30,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265111990] [2023-12-21 22:17:30,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:30,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:30,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:30,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:30,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:30,993 INFO L87 Difference]: Start difference. First operand 2934 states and 5150 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:31,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:31,655 INFO L93 Difference]: Finished difference Result 3862 states and 6535 transitions. [2023-12-21 22:17:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:31,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:31,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:31,659 INFO L225 Difference]: With dead ends: 3862 [2023-12-21 22:17:31,659 INFO L226 Difference]: Without dead ends: 3064 [2023-12-21 22:17:31,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:31,661 INFO L413 NwaCegarLoop]: 4206 mSDtfsCounter, 4579 mSDsluCounter, 8308 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4596 SdHoareTripleChecker+Valid, 12514 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:31,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4596 Valid, 12514 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 22:17:31,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2023-12-21 22:17:31,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 3064. [2023-12-21 22:17:31,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 2990 states have (on average 1.7478260869565216) internal successors, (5226), 2993 states have internal predecessors, (5226), 47 states have call successors, (47), 24 states have call predecessors, (47), 25 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-21 22:17:31,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 5321 transitions. [2023-12-21 22:17:31,714 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 5321 transitions. Word has length 131 [2023-12-21 22:17:31,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:31,715 INFO L495 AbstractCegarLoop]: Abstraction has 3064 states and 5321 transitions. [2023-12-21 22:17:31,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:31,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 5321 transitions. [2023-12-21 22:17:31,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:31,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:31,717 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] [2023-12-21 22:17:31,723 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 [2023-12-21 22:17:31,921 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 [2023-12-21 22:17:31,921 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:31,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:31,921 INFO L85 PathProgramCache]: Analyzing trace with hash -280121695, now seen corresponding path program 1 times [2023-12-21 22:17:31,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:31,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76375321] [2023-12-21 22:17:31,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:31,922 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 [2023-12-21 22:17:31,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:31,923 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) [2023-12-21 22:17:31,952 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 [2023-12-21 22:17:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:32,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:32,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:32,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:32,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:32,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:32,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76375321] [2023-12-21 22:17:32,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76375321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:32,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:32,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:32,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138669164] [2023-12-21 22:17:32,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:32,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:32,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:32,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:32,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:32,089 INFO L87 Difference]: Start difference. First operand 3064 states and 5321 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:32,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:32,561 INFO L93 Difference]: Finished difference Result 4122 states and 6877 transitions. [2023-12-21 22:17:32,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:32,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:32,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:32,567 INFO L225 Difference]: With dead ends: 4122 [2023-12-21 22:17:32,568 INFO L226 Difference]: Without dead ends: 3194 [2023-12-21 22:17:32,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:32,570 INFO L413 NwaCegarLoop]: 4203 mSDtfsCounter, 4572 mSDsluCounter, 8304 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4589 SdHoareTripleChecker+Valid, 12507 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:32,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4589 Valid, 12507 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:32,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2023-12-21 22:17:32,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 3194. [2023-12-21 22:17:32,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 3114 states have (on average 1.7305716120745023) internal successors, (5389), 3117 states have internal predecessors, (5389), 49 states have call successors, (49), 28 states have call predecessors, (49), 29 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-21 22:17:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 5488 transitions. [2023-12-21 22:17:32,621 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 5488 transitions. Word has length 131 [2023-12-21 22:17:32,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:32,621 INFO L495 AbstractCegarLoop]: Abstraction has 3194 states and 5488 transitions. [2023-12-21 22:17:32,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:32,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 5488 transitions. [2023-12-21 22:17:32,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:32,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:32,622 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] [2023-12-21 22:17:32,640 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 [2023-12-21 22:17:32,826 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 [2023-12-21 22:17:32,826 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:32,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:32,827 INFO L85 PathProgramCache]: Analyzing trace with hash 750919203, now seen corresponding path program 1 times [2023-12-21 22:17:32,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:32,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703787841] [2023-12-21 22:17:32,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:32,827 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 [2023-12-21 22:17:32,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:32,831 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) [2023-12-21 22:17:32,832 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 [2023-12-21 22:17:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:32,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:32,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:33,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:33,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:33,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:33,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703787841] [2023-12-21 22:17:33,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703787841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:33,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:33,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:33,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027784610] [2023-12-21 22:17:33,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:33,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:33,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:33,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:33,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:33,035 INFO L87 Difference]: Start difference. First operand 3194 states and 5488 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:33,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:33,474 INFO L93 Difference]: Finished difference Result 4382 states and 7211 transitions. [2023-12-21 22:17:33,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:33,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:33,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:33,480 INFO L225 Difference]: With dead ends: 4382 [2023-12-21 22:17:33,480 INFO L226 Difference]: Without dead ends: 3324 [2023-12-21 22:17:33,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:33,484 INFO L413 NwaCegarLoop]: 4200 mSDtfsCounter, 4565 mSDsluCounter, 8300 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 12500 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:33,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4582 Valid, 12500 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:33,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2023-12-21 22:17:33,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3324. [2023-12-21 22:17:33,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 3238 states have (on average 1.7134033353922173) internal successors, (5548), 3241 states have internal predecessors, (5548), 51 states have call successors, (51), 32 states have call predecessors, (51), 33 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-21 22:17:33,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 5651 transitions. [2023-12-21 22:17:33,550 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 5651 transitions. Word has length 131 [2023-12-21 22:17:33,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:33,551 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 5651 transitions. [2023-12-21 22:17:33,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:33,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 5651 transitions. [2023-12-21 22:17:33,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:33,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:33,552 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] [2023-12-21 22:17:33,572 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 [2023-12-21 22:17:33,756 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 [2023-12-21 22:17:33,756 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:33,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:33,757 INFO L85 PathProgramCache]: Analyzing trace with hash -231710658, now seen corresponding path program 1 times [2023-12-21 22:17:33,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:33,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100353124] [2023-12-21 22:17:33,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:33,758 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 [2023-12-21 22:17:33,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:33,759 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) [2023-12-21 22:17:33,777 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 [2023-12-21 22:17:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:33,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:33,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:33,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:33,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:33,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:33,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100353124] [2023-12-21 22:17:33,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100353124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:33,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:33,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:33,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455875564] [2023-12-21 22:17:33,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:33,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:33,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:33,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:33,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:33,944 INFO L87 Difference]: Start difference. First operand 3324 states and 5651 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:34,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:34,341 INFO L93 Difference]: Finished difference Result 4642 states and 7537 transitions. [2023-12-21 22:17:34,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:34,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:34,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:34,346 INFO L225 Difference]: With dead ends: 4642 [2023-12-21 22:17:34,346 INFO L226 Difference]: Without dead ends: 3454 [2023-12-21 22:17:34,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:34,349 INFO L413 NwaCegarLoop]: 4197 mSDtfsCounter, 4558 mSDsluCounter, 8296 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4575 SdHoareTripleChecker+Valid, 12493 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:34,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4575 Valid, 12493 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:34,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2023-12-21 22:17:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3454. [2023-12-21 22:17:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3362 states have (on average 1.6963117192147532) internal successors, (5703), 3365 states have internal predecessors, (5703), 53 states have call successors, (53), 36 states have call predecessors, (53), 37 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-21 22:17:34,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 5810 transitions. [2023-12-21 22:17:34,431 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 5810 transitions. Word has length 131 [2023-12-21 22:17:34,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:34,431 INFO L495 AbstractCegarLoop]: Abstraction has 3454 states and 5810 transitions. [2023-12-21 22:17:34,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:34,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 5810 transitions. [2023-12-21 22:17:34,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:34,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:34,432 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] [2023-12-21 22:17:34,445 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 [2023-12-21 22:17:34,636 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 [2023-12-21 22:17:34,637 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:34,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:34,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1792062274, now seen corresponding path program 1 times [2023-12-21 22:17:34,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:34,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899324824] [2023-12-21 22:17:34,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:34,637 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 [2023-12-21 22:17:34,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:34,638 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) [2023-12-21 22:17:34,664 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 [2023-12-21 22:17:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:34,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:34,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:34,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:34,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:34,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899324824] [2023-12-21 22:17:34,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899324824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:34,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:34,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:34,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738186401] [2023-12-21 22:17:34,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:34,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:34,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:34,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:34,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:34,868 INFO L87 Difference]: Start difference. First operand 3454 states and 5810 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:35,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:35,419 INFO L93 Difference]: Finished difference Result 4902 states and 7855 transitions. [2023-12-21 22:17:35,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:35,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:35,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:35,424 INFO L225 Difference]: With dead ends: 4902 [2023-12-21 22:17:35,425 INFO L226 Difference]: Without dead ends: 3584 [2023-12-21 22:17:35,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:35,426 INFO L413 NwaCegarLoop]: 4194 mSDtfsCounter, 4551 mSDsluCounter, 8292 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4568 SdHoareTripleChecker+Valid, 12486 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:35,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4568 Valid, 12486 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:35,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2023-12-21 22:17:35,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3584. [2023-12-21 22:17:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3584 states, 3486 states have (on average 1.6792885829030408) internal successors, (5854), 3489 states have internal predecessors, (5854), 55 states have call successors, (55), 40 states have call predecessors, (55), 41 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-21 22:17:35,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3584 states to 3584 states and 5965 transitions. [2023-12-21 22:17:35,495 INFO L78 Accepts]: Start accepts. Automaton has 3584 states and 5965 transitions. Word has length 131 [2023-12-21 22:17:35,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:35,495 INFO L495 AbstractCegarLoop]: Abstraction has 3584 states and 5965 transitions. [2023-12-21 22:17:35,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:35,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3584 states and 5965 transitions. [2023-12-21 22:17:35,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:35,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:35,496 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] [2023-12-21 22:17:35,501 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 [2023-12-21 22:17:35,701 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 [2023-12-21 22:17:35,702 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:35,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:35,703 INFO L85 PathProgramCache]: Analyzing trace with hash 20483869, now seen corresponding path program 1 times [2023-12-21 22:17:35,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:35,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329304952] [2023-12-21 22:17:35,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:35,703 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 [2023-12-21 22:17:35,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:35,704 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) [2023-12-21 22:17:35,705 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 [2023-12-21 22:17:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:35,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:35,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:35,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:35,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:35,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:35,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329304952] [2023-12-21 22:17:35,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329304952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:35,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:35,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:35,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468552449] [2023-12-21 22:17:35,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:35,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:35,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:35,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:35,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:35,866 INFO L87 Difference]: Start difference. First operand 3584 states and 5965 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:36,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:36,369 INFO L93 Difference]: Finished difference Result 5162 states and 8165 transitions. [2023-12-21 22:17:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:36,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-21 22:17:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:36,375 INFO L225 Difference]: With dead ends: 5162 [2023-12-21 22:17:36,375 INFO L226 Difference]: Without dead ends: 3714 [2023-12-21 22:17:36,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:36,377 INFO L413 NwaCegarLoop]: 4191 mSDtfsCounter, 4543 mSDsluCounter, 8288 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4560 SdHoareTripleChecker+Valid, 12479 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:36,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4560 Valid, 12479 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:36,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2023-12-21 22:17:36,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3714. [2023-12-21 22:17:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3714 states, 3610 states have (on average 1.6623268698060942) internal successors, (6001), 3613 states have internal predecessors, (6001), 57 states have call successors, (57), 44 states have call predecessors, (57), 45 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-21 22:17:36,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 6116 transitions. [2023-12-21 22:17:36,460 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 6116 transitions. Word has length 131 [2023-12-21 22:17:36,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:36,460 INFO L495 AbstractCegarLoop]: Abstraction has 3714 states and 6116 transitions. [2023-12-21 22:17:36,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 22:17:36,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 6116 transitions. [2023-12-21 22:17:36,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 22:17:36,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:36,461 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] [2023-12-21 22:17:36,468 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 (19)] Ended with exit code 0 [2023-12-21 22:17:36,666 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 [2023-12-21 22:17:36,666 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:36,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:36,666 INFO L85 PathProgramCache]: Analyzing trace with hash -572771144, now seen corresponding path program 1 times [2023-12-21 22:17:36,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:36,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591424342] [2023-12-21 22:17:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:36,667 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 [2023-12-21 22:17:36,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:36,668 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) [2023-12-21 22:17:36,689 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 [2023-12-21 22:17:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:36,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:36,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:36,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 22:17:36,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:36,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:36,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591424342] [2023-12-21 22:17:36,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591424342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:36,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:36,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 22:17:36,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219166442] [2023-12-21 22:17:36,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:36,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:36,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:36,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:36,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:36,931 INFO L87 Difference]: Start difference. First operand 3714 states and 6116 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-21 22:17:37,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:37,118 INFO L93 Difference]: Finished difference Result 6841 states and 10369 transitions. [2023-12-21 22:17:37,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:37,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 131 [2023-12-21 22:17:37,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:37,125 INFO L225 Difference]: With dead ends: 6841 [2023-12-21 22:17:37,126 INFO L226 Difference]: Without dead ends: 5264 [2023-12-21 22:17:37,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:37,130 INFO L413 NwaCegarLoop]: 4372 mSDtfsCounter, 4220 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 4700 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:37,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 4700 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:37,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5264 states. [2023-12-21 22:17:37,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5264 to 5262. [2023-12-21 22:17:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5262 states, 5060 states have (on average 1.5717391304347825) internal successors, (7953), 5066 states have internal predecessors, (7953), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:37,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 8175 transitions. [2023-12-21 22:17:37,279 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 8175 transitions. Word has length 131 [2023-12-21 22:17:37,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:37,279 INFO L495 AbstractCegarLoop]: Abstraction has 5262 states and 8175 transitions. [2023-12-21 22:17:37,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-21 22:17:37,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 8175 transitions. [2023-12-21 22:17:37,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:37,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:37,282 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:37,296 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 [2023-12-21 22:17:37,487 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 [2023-12-21 22:17:37,487 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:37,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:37,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1740521879, now seen corresponding path program 1 times [2023-12-21 22:17:37,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:37,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289510491] [2023-12-21 22:17:37,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:37,488 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 [2023-12-21 22:17:37,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:37,489 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) [2023-12-21 22:17:37,490 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 [2023-12-21 22:17:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:37,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:37,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:37,641 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-21 22:17:37,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:37,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:37,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289510491] [2023-12-21 22:17:37,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289510491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:37,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:37,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:37,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853345659] [2023-12-21 22:17:37,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:37,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:37,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:37,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:37,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:37,643 INFO L87 Difference]: Start difference. First operand 5262 states and 8175 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, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:37,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:37,833 INFO L93 Difference]: Finished difference Result 9431 states and 13870 transitions. [2023-12-21 22:17:37,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:37,834 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, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:37,846 INFO L225 Difference]: With dead ends: 9431 [2023-12-21 22:17:37,846 INFO L226 Difference]: Without dead ends: 6306 [2023-12-21 22:17:37,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:37,855 INFO L413 NwaCegarLoop]: 4322 mSDtfsCounter, 83 mSDsluCounter, 8639 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 12961 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:37,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 12961 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:37,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6306 states. [2023-12-21 22:17:38,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6306 to 5298. [2023-12-21 22:17:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5298 states, 5096 states have (on average 1.5641679748822606) internal successors, (7971), 5102 states have internal predecessors, (7971), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:38,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5298 states to 5298 states and 8193 transitions. [2023-12-21 22:17:38,085 INFO L78 Accepts]: Start accepts. Automaton has 5298 states and 8193 transitions. Word has length 211 [2023-12-21 22:17:38,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:38,086 INFO L495 AbstractCegarLoop]: Abstraction has 5298 states and 8193 transitions. [2023-12-21 22:17:38,086 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, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:38,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5298 states and 8193 transitions. [2023-12-21 22:17:38,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:38,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:38,089 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:38,107 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 [2023-12-21 22:17:38,294 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 [2023-12-21 22:17:38,295 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:38,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:38,296 INFO L85 PathProgramCache]: Analyzing trace with hash 985887333, now seen corresponding path program 1 times [2023-12-21 22:17:38,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:38,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073627335] [2023-12-21 22:17:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:38,296 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 [2023-12-21 22:17:38,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:38,298 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) [2023-12-21 22:17:38,299 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 [2023-12-21 22:17:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:38,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:38,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:38,456 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-21 22:17:38,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:38,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:38,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073627335] [2023-12-21 22:17:38,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073627335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:38,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:38,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:38,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654396707] [2023-12-21 22:17:38,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:38,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:38,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:38,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:38,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:38,458 INFO L87 Difference]: Start difference. First operand 5298 states and 8193 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:38,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:38,640 INFO L93 Difference]: Finished difference Result 8667 states and 12763 transitions. [2023-12-21 22:17:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:38,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:38,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:38,648 INFO L225 Difference]: With dead ends: 8667 [2023-12-21 22:17:38,648 INFO L226 Difference]: Without dead ends: 5506 [2023-12-21 22:17:38,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:38,654 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 74 mSDsluCounter, 8628 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 12948 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:38,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 12948 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:38,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5506 states. [2023-12-21 22:17:38,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5506 to 5306. [2023-12-21 22:17:38,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 5104 states have (on average 1.557014106583072) internal successors, (7947), 5110 states have internal predecessors, (7947), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:38,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 8169 transitions. [2023-12-21 22:17:38,782 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 8169 transitions. Word has length 211 [2023-12-21 22:17:38,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:38,782 INFO L495 AbstractCegarLoop]: Abstraction has 5306 states and 8169 transitions. [2023-12-21 22:17:38,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:38,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 8169 transitions. [2023-12-21 22:17:38,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:38,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:38,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:38,804 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 [2023-12-21 22:17:38,990 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 [2023-12-21 22:17:38,991 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:38,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:38,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1422405865, now seen corresponding path program 1 times [2023-12-21 22:17:38,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:38,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314018369] [2023-12-21 22:17:38,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:38,992 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 [2023-12-21 22:17:38,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:38,993 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) [2023-12-21 22:17:38,995 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 [2023-12-21 22:17:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:39,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:39,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-21 22:17:39,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:39,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:39,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314018369] [2023-12-21 22:17:39,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314018369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:39,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:39,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:39,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116181202] [2023-12-21 22:17:39,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:39,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:39,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:39,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:39,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:39,170 INFO L87 Difference]: Start difference. First operand 5306 states and 8169 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:39,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:39,345 INFO L93 Difference]: Finished difference Result 8659 states and 12683 transitions. [2023-12-21 22:17:39,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:39,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:39,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:39,353 INFO L225 Difference]: With dead ends: 8659 [2023-12-21 22:17:39,353 INFO L226 Difference]: Without dead ends: 5490 [2023-12-21 22:17:39,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:39,359 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 65 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 12949 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:39,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 12949 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:39,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5490 states. [2023-12-21 22:17:39,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5490 to 5314. [2023-12-21 22:17:39,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5314 states, 5112 states have (on average 1.5498826291079812) internal successors, (7923), 5118 states have internal predecessors, (7923), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:39,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5314 states to 5314 states and 8145 transitions. [2023-12-21 22:17:39,490 INFO L78 Accepts]: Start accepts. Automaton has 5314 states and 8145 transitions. Word has length 211 [2023-12-21 22:17:39,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:39,490 INFO L495 AbstractCegarLoop]: Abstraction has 5314 states and 8145 transitions. [2023-12-21 22:17:39,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:39,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5314 states and 8145 transitions. [2023-12-21 22:17:39,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:39,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:39,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:39,499 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 [2023-12-21 22:17:39,699 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 [2023-12-21 22:17:39,699 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:39,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:39,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1671393253, now seen corresponding path program 1 times [2023-12-21 22:17:39,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:39,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499929165] [2023-12-21 22:17:39,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:39,700 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 [2023-12-21 22:17:39,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:39,701 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) [2023-12-21 22:17:39,732 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 [2023-12-21 22:17:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:39,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:39,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:39,853 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-21 22:17:39,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:39,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:39,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499929165] [2023-12-21 22:17:39,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499929165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:39,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:39,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:39,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710945473] [2023-12-21 22:17:39,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:39,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:39,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:39,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:39,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:39,854 INFO L87 Difference]: Start difference. First operand 5314 states and 8145 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:40,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:40,024 INFO L93 Difference]: Finished difference Result 8651 states and 12603 transitions. [2023-12-21 22:17:40,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:40,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:40,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:40,033 INFO L225 Difference]: With dead ends: 8651 [2023-12-21 22:17:40,033 INFO L226 Difference]: Without dead ends: 5474 [2023-12-21 22:17:40,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:40,039 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 56 mSDsluCounter, 8630 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 12950 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:40,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 12950 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:40,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2023-12-21 22:17:40,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5322. [2023-12-21 22:17:40,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5120 states have (on average 1.5427734375) internal successors, (7899), 5126 states have internal predecessors, (7899), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:40,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 8121 transitions. [2023-12-21 22:17:40,284 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 8121 transitions. Word has length 211 [2023-12-21 22:17:40,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:40,284 INFO L495 AbstractCegarLoop]: Abstraction has 5322 states and 8121 transitions. [2023-12-21 22:17:40,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:40,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 8121 transitions. [2023-12-21 22:17:40,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:40,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:40,288 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:40,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:40,493 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 [2023-12-21 22:17:40,493 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:40,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:40,494 INFO L85 PathProgramCache]: Analyzing trace with hash 784581481, now seen corresponding path program 1 times [2023-12-21 22:17:40,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:40,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322210204] [2023-12-21 22:17:40,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:40,494 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 [2023-12-21 22:17:40,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:40,495 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) [2023-12-21 22:17:40,496 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 [2023-12-21 22:17:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:40,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:40,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:40,654 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-21 22:17:40,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:40,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:40,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322210204] [2023-12-21 22:17:40,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322210204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:40,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:40,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:40,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8135073] [2023-12-21 22:17:40,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:40,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:40,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:40,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:40,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:40,656 INFO L87 Difference]: Start difference. First operand 5322 states and 8121 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:40,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:40,845 INFO L93 Difference]: Finished difference Result 8619 states and 12491 transitions. [2023-12-21 22:17:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:40,845 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), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:40,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:40,851 INFO L225 Difference]: With dead ends: 8619 [2023-12-21 22:17:40,851 INFO L226 Difference]: Without dead ends: 5434 [2023-12-21 22:17:40,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:40,856 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 38 mSDsluCounter, 8632 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 12952 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:40,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 12952 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:40,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states. [2023-12-21 22:17:40,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 5330. [2023-12-21 22:17:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5128 states have (on average 1.5356864274570983) internal successors, (7875), 5134 states have internal predecessors, (7875), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:40,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 8097 transitions. [2023-12-21 22:17:40,985 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 8097 transitions. Word has length 211 [2023-12-21 22:17:40,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:40,986 INFO L495 AbstractCegarLoop]: Abstraction has 5330 states and 8097 transitions. [2023-12-21 22:17:40,986 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), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:40,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 8097 transitions. [2023-12-21 22:17:40,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:40,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:40,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:40,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-21 22:17:41,193 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 [2023-12-21 22:17:41,194 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:41,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:41,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1399985171, now seen corresponding path program 1 times [2023-12-21 22:17:41,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:41,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091354246] [2023-12-21 22:17:41,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:41,195 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 [2023-12-21 22:17:41,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:41,196 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) [2023-12-21 22:17:41,198 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 [2023-12-21 22:17:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:41,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:41,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 22:17:41,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:41,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:41,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091354246] [2023-12-21 22:17:41,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091354246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:41,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:41,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:41,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65377807] [2023-12-21 22:17:41,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:41,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:41,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:41,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:41,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:41,379 INFO L87 Difference]: Start difference. First operand 5330 states and 8097 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:41,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:41,555 INFO L93 Difference]: Finished difference Result 8611 states and 12411 transitions. [2023-12-21 22:17:41,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:41,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:41,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:41,563 INFO L225 Difference]: With dead ends: 8611 [2023-12-21 22:17:41,564 INFO L226 Difference]: Without dead ends: 5418 [2023-12-21 22:17:41,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:41,570 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 29 mSDsluCounter, 8633 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12953 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:41,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12953 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:41,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2023-12-21 22:17:41,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 5338. [2023-12-21 22:17:41,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5136 states have (on average 1.528621495327103) internal successors, (7851), 5142 states have internal predecessors, (7851), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 8073 transitions. [2023-12-21 22:17:41,699 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 8073 transitions. Word has length 211 [2023-12-21 22:17:41,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:41,699 INFO L495 AbstractCegarLoop]: Abstraction has 5338 states and 8073 transitions. [2023-12-21 22:17:41,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:41,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 8073 transitions. [2023-12-21 22:17:41,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:41,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:41,702 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:41,709 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 [2023-12-21 22:17:41,907 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 [2023-12-21 22:17:41,907 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:41,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:41,908 INFO L85 PathProgramCache]: Analyzing trace with hash 946176233, now seen corresponding path program 1 times [2023-12-21 22:17:41,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:41,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224472594] [2023-12-21 22:17:41,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:41,908 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 [2023-12-21 22:17:41,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:41,919 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) [2023-12-21 22:17:41,921 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 [2023-12-21 22:17:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:42,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:42,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 22:17:42,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:42,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:42,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224472594] [2023-12-21 22:17:42,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224472594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:42,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:42,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:42,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51237716] [2023-12-21 22:17:42,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:42,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:42,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:42,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:42,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:42,072 INFO L87 Difference]: Start difference. First operand 5338 states and 8073 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:42,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:42,249 INFO L93 Difference]: Finished difference Result 8603 states and 12331 transitions. [2023-12-21 22:17:42,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:42,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:42,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:42,256 INFO L225 Difference]: With dead ends: 8603 [2023-12-21 22:17:42,257 INFO L226 Difference]: Without dead ends: 5402 [2023-12-21 22:17:42,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:42,263 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 20 mSDsluCounter, 8634 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12954 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:42,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12954 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:42,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2023-12-21 22:17:42,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5346. [2023-12-21 22:17:42,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5346 states, 5144 states have (on average 1.5215785381026439) internal successors, (7827), 5150 states have internal predecessors, (7827), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5346 states to 5346 states and 8049 transitions. [2023-12-21 22:17:42,467 INFO L78 Accepts]: Start accepts. Automaton has 5346 states and 8049 transitions. Word has length 211 [2023-12-21 22:17:42,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:42,467 INFO L495 AbstractCegarLoop]: Abstraction has 5346 states and 8049 transitions. [2023-12-21 22:17:42,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:42,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5346 states and 8049 transitions. [2023-12-21 22:17:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:42,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:42,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:42,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-21 22:17:42,676 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 [2023-12-21 22:17:42,676 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:42,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:42,677 INFO L85 PathProgramCache]: Analyzing trace with hash 824950381, now seen corresponding path program 1 times [2023-12-21 22:17:42,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:42,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646494970] [2023-12-21 22:17:42,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:42,677 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 [2023-12-21 22:17:42,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:42,705 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) [2023-12-21 22:17:42,720 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 [2023-12-21 22:17:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:42,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:42,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 22:17:42,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:42,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:42,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646494970] [2023-12-21 22:17:42,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646494970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:42,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:42,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:42,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893176799] [2023-12-21 22:17:42,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:42,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:42,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:42,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:42,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:42,907 INFO L87 Difference]: Start difference. First operand 5346 states and 8049 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:43,084 INFO L93 Difference]: Finished difference Result 8915 states and 12674 transitions. [2023-12-21 22:17:43,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:43,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:43,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:43,091 INFO L225 Difference]: With dead ends: 8915 [2023-12-21 22:17:43,091 INFO L226 Difference]: Without dead ends: 5706 [2023-12-21 22:17:43,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:43,095 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 11 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12955 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:43,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12955 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:43,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5706 states. [2023-12-21 22:17:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5706 to 5418. [2023-12-21 22:17:43,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5216 states have (on average 1.5143788343558282) internal successors, (7899), 5222 states have internal predecessors, (7899), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:43,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 8121 transitions. [2023-12-21 22:17:43,209 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 8121 transitions. Word has length 211 [2023-12-21 22:17:43,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:43,209 INFO L495 AbstractCegarLoop]: Abstraction has 5418 states and 8121 transitions. [2023-12-21 22:17:43,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:43,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 8121 transitions. [2023-12-21 22:17:43,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:43,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:43,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:43,218 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 [2023-12-21 22:17:43,416 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 [2023-12-21 22:17:43,417 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:43,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:43,417 INFO L85 PathProgramCache]: Analyzing trace with hash 925289, now seen corresponding path program 1 times [2023-12-21 22:17:43,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:43,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14546980] [2023-12-21 22:17:43,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:43,418 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 [2023-12-21 22:17:43,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:43,419 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) [2023-12-21 22:17:43,420 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 [2023-12-21 22:17:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:43,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 22:17:43,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-21 22:17:43,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:43,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:43,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14546980] [2023-12-21 22:17:43,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14546980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:43,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:43,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:43,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120257339] [2023-12-21 22:17:43,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:43,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:43,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:43,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:43,587 INFO L87 Difference]: Start difference. First operand 5418 states and 8121 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:43,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:43,763 INFO L93 Difference]: Finished difference Result 8715 states and 12359 transitions. [2023-12-21 22:17:43,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:43,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:43,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:43,771 INFO L225 Difference]: With dead ends: 8715 [2023-12-21 22:17:43,771 INFO L226 Difference]: Without dead ends: 5434 [2023-12-21 22:17:43,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:43,775 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 2 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12955 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:43,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12955 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:43,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states. [2023-12-21 22:17:43,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 5426. [2023-12-21 22:17:43,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5426 states, 5224 states have (on average 1.5074655436447166) internal successors, (7875), 5230 states have internal predecessors, (7875), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:43,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5426 states to 5426 states and 8097 transitions. [2023-12-21 22:17:43,900 INFO L78 Accepts]: Start accepts. Automaton has 5426 states and 8097 transitions. Word has length 211 [2023-12-21 22:17:43,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:43,900 INFO L495 AbstractCegarLoop]: Abstraction has 5426 states and 8097 transitions. [2023-12-21 22:17:43,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:43,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5426 states and 8097 transitions. [2023-12-21 22:17:43,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:43,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:43,903 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:43,908 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 [2023-12-21 22:17:44,108 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 [2023-12-21 22:17:44,108 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:44,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:44,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1190572269, now seen corresponding path program 1 times [2023-12-21 22:17:44,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:44,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233492366] [2023-12-21 22:17:44,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:44,109 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 [2023-12-21 22:17:44,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:44,110 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) [2023-12-21 22:17:44,111 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 [2023-12-21 22:17:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:44,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 22:17:44,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:44,390 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 22:17:44,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:44,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:44,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233492366] [2023-12-21 22:17:44,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233492366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:44,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:44,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:44,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639750949] [2023-12-21 22:17:44,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:44,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:44,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:44,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:44,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:44,392 INFO L87 Difference]: Start difference. First operand 5426 states and 8097 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:44,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:44,897 INFO L93 Difference]: Finished difference Result 8716 states and 12222 transitions. [2023-12-21 22:17:44,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 22:17:44,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:44,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:44,904 INFO L225 Difference]: With dead ends: 8716 [2023-12-21 22:17:44,904 INFO L226 Difference]: Without dead ends: 5426 [2023-12-21 22:17:44,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 22:17:44,907 INFO L413 NwaCegarLoop]: 4187 mSDtfsCounter, 4401 mSDsluCounter, 8284 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4417 SdHoareTripleChecker+Valid, 12471 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:44,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4417 Valid, 12471 Invalid, 431 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:44,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5426 states. [2023-12-21 22:17:45,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5426 to 5426. [2023-12-21 22:17:45,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5426 states, 5224 states have (on average 1.5047856049004593) internal successors, (7861), 5230 states have internal predecessors, (7861), 110 states have call successors, (110), 88 states have call predecessors, (110), 90 states have return successors, (112), 108 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-21 22:17:45,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5426 states to 5426 states and 8083 transitions. [2023-12-21 22:17:45,084 INFO L78 Accepts]: Start accepts. Automaton has 5426 states and 8083 transitions. Word has length 211 [2023-12-21 22:17:45,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:45,084 INFO L495 AbstractCegarLoop]: Abstraction has 5426 states and 8083 transitions. [2023-12-21 22:17:45,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:45,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5426 states and 8083 transitions. [2023-12-21 22:17:45,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:45,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:45,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:45,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:45,307 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 [2023-12-21 22:17:45,308 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:45,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:45,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1175462801, now seen corresponding path program 1 times [2023-12-21 22:17:45,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:45,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818447912] [2023-12-21 22:17:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:45,309 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 [2023-12-21 22:17:45,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:45,310 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) [2023-12-21 22:17:45,311 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 [2023-12-21 22:17:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:45,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 22:17:45,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:45,581 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 22:17:45,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:45,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:45,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818447912] [2023-12-21 22:17:45,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818447912] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:45,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:45,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:45,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33812383] [2023-12-21 22:17:45,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:45,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:45,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:45,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:45,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:45,583 INFO L87 Difference]: Start difference. First operand 5426 states and 8083 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:46,159 INFO L93 Difference]: Finished difference Result 9070 states and 12643 transitions. [2023-12-21 22:17:46,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 22:17:46,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:46,166 INFO L225 Difference]: With dead ends: 9070 [2023-12-21 22:17:46,166 INFO L226 Difference]: Without dead ends: 5780 [2023-12-21 22:17:46,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 22:17:46,170 INFO L413 NwaCegarLoop]: 4186 mSDtfsCounter, 4530 mSDsluCounter, 8280 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4546 SdHoareTripleChecker+Valid, 12466 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:46,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4546 Valid, 12466 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:17:46,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2023-12-21 22:17:46,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5660. [2023-12-21 22:17:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5446 states have (on average 1.4849430774880645) internal successors, (8087), 5452 states have internal predecessors, (8087), 114 states have call successors, (114), 96 states have call predecessors, (114), 98 states have return successors, (116), 112 states have call predecessors, (116), 114 states have call successors, (116) [2023-12-21 22:17:46,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 8317 transitions. [2023-12-21 22:17:46,302 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 8317 transitions. Word has length 211 [2023-12-21 22:17:46,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:46,303 INFO L495 AbstractCegarLoop]: Abstraction has 5660 states and 8317 transitions. [2023-12-21 22:17:46,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:46,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 8317 transitions. [2023-12-21 22:17:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:46,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:46,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:46,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-21 22:17:46,510 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 [2023-12-21 22:17:46,510 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:46,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:46,510 INFO L85 PathProgramCache]: Analyzing trace with hash 977644017, now seen corresponding path program 1 times [2023-12-21 22:17:46,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:46,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445934490] [2023-12-21 22:17:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:46,511 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 [2023-12-21 22:17:46,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:46,512 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) [2023-12-21 22:17:46,513 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 [2023-12-21 22:17:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:46,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 22:17:46,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:46,780 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 22:17:46,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:46,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:46,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445934490] [2023-12-21 22:17:46,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445934490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:46,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:46,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:46,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645702788] [2023-12-21 22:17:46,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:46,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:17:46,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:46,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:17:46,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:46,782 INFO L87 Difference]: Start difference. First operand 5660 states and 8317 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:47,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:47,241 INFO L93 Difference]: Finished difference Result 9398 states and 12965 transitions. [2023-12-21 22:17:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 22:17:47,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:47,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:47,247 INFO L225 Difference]: With dead ends: 9398 [2023-12-21 22:17:47,247 INFO L226 Difference]: Without dead ends: 5874 [2023-12-21 22:17:47,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 22:17:47,251 INFO L413 NwaCegarLoop]: 4183 mSDtfsCounter, 4456 mSDsluCounter, 8276 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4472 SdHoareTripleChecker+Valid, 12459 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:47,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4472 Valid, 12459 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:47,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5874 states. [2023-12-21 22:17:47,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5874 to 5834. [2023-12-21 22:17:47,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5834 states, 5616 states have (on average 1.462428774928775) internal successors, (8213), 5622 states have internal predecessors, (8213), 114 states have call successors, (114), 100 states have call predecessors, (114), 102 states have return successors, (116), 112 states have call predecessors, (116), 114 states have call successors, (116) [2023-12-21 22:17:47,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 8443 transitions. [2023-12-21 22:17:47,466 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 8443 transitions. Word has length 211 [2023-12-21 22:17:47,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:47,466 INFO L495 AbstractCegarLoop]: Abstraction has 5834 states and 8443 transitions. [2023-12-21 22:17:47,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:47,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 8443 transitions. [2023-12-21 22:17:47,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:47,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:47,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:47,497 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 (32)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:47,673 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 [2023-12-21 22:17:47,674 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:47,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:47,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2008684915, now seen corresponding path program 1 times [2023-12-21 22:17:47,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:47,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632539555] [2023-12-21 22:17:47,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:47,674 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 [2023-12-21 22:17:47,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:47,675 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) [2023-12-21 22:17:47,676 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 [2023-12-21 22:17:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:47,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:47,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-21 22:17:48,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:48,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:48,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632539555] [2023-12-21 22:17:48,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632539555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:48,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:48,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:48,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25101627] [2023-12-21 22:17:48,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:48,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:48,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:48,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:48,031 INFO L87 Difference]: Start difference. First operand 5834 states and 8443 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:48,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:48,605 INFO L93 Difference]: Finished difference Result 13120 states and 17223 transitions. [2023-12-21 22:17:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:48,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 211 [2023-12-21 22:17:48,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:48,618 INFO L225 Difference]: With dead ends: 13120 [2023-12-21 22:17:48,618 INFO L226 Difference]: Without dead ends: 9424 [2023-12-21 22:17:48,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:48,622 INFO L413 NwaCegarLoop]: 4388 mSDtfsCounter, 4459 mSDsluCounter, 4535 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 8923 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:48,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 8923 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:48,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2023-12-21 22:17:48,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 9422. [2023-12-21 22:17:48,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9422 states, 8997 states have (on average 1.365455151717239) internal successors, (12285), 9012 states have internal predecessors, (12285), 219 states have call successors, (219), 192 states have call predecessors, (219), 204 states have return successors, (243), 219 states have call predecessors, (243), 219 states have call successors, (243) [2023-12-21 22:17:48,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9422 states to 9422 states and 12747 transitions. [2023-12-21 22:17:48,975 INFO L78 Accepts]: Start accepts. Automaton has 9422 states and 12747 transitions. Word has length 211 [2023-12-21 22:17:48,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:48,976 INFO L495 AbstractCegarLoop]: Abstraction has 9422 states and 12747 transitions. [2023-12-21 22:17:48,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:48,976 INFO L276 IsEmpty]: Start isEmpty. Operand 9422 states and 12747 transitions. [2023-12-21 22:17:48,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 22:17:48,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:48,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:48,987 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 (33)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:49,185 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 [2023-12-21 22:17:49,185 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:49,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:49,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1140757553, now seen corresponding path program 1 times [2023-12-21 22:17:49,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:49,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255094837] [2023-12-21 22:17:49,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:49,193 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 [2023-12-21 22:17:49,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:49,194 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) [2023-12-21 22:17:49,195 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 [2023-12-21 22:17:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:49,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:49,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-21 22:17:49,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:49,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:49,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255094837] [2023-12-21 22:17:49,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255094837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:49,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:49,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:17:49,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555387825] [2023-12-21 22:17:49,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:49,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:49,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:49,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:49,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:49,358 INFO L87 Difference]: Start difference. First operand 9422 states and 12747 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:49,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:49,629 INFO L93 Difference]: Finished difference Result 16694 states and 21484 transitions. [2023-12-21 22:17:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:49,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 211 [2023-12-21 22:17:49,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:49,640 INFO L225 Difference]: With dead ends: 16694 [2023-12-21 22:17:49,640 INFO L226 Difference]: Without dead ends: 9410 [2023-12-21 22:17:49,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:49,648 INFO L413 NwaCegarLoop]: 4310 mSDtfsCounter, 382 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 8267 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:49,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 8267 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:17:49,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9410 states. [2023-12-21 22:17:49,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9410 to 9410. [2023-12-21 22:17:49,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9410 states, 8988 states have (on average 1.3649310191366266) internal successors, (12268), 9002 states have internal predecessors, (12268), 216 states have call successors, (216), 192 states have call predecessors, (216), 204 states have return successors, (240), 216 states have call predecessors, (240), 216 states have call successors, (240) [2023-12-21 22:17:49,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9410 states to 9410 states and 12724 transitions. [2023-12-21 22:17:49,918 INFO L78 Accepts]: Start accepts. Automaton has 9410 states and 12724 transitions. Word has length 211 [2023-12-21 22:17:49,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:49,918 INFO L495 AbstractCegarLoop]: Abstraction has 9410 states and 12724 transitions. [2023-12-21 22:17:49,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:49,918 INFO L276 IsEmpty]: Start isEmpty. Operand 9410 states and 12724 transitions. [2023-12-21 22:17:49,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-21 22:17:49,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:49,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:49,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:50,125 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 [2023-12-21 22:17:50,126 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:50,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:50,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1911862606, now seen corresponding path program 1 times [2023-12-21 22:17:50,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:50,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952055268] [2023-12-21 22:17:50,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:50,127 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 [2023-12-21 22:17:50,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:50,128 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) [2023-12-21 22:17:50,128 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 [2023-12-21 22:17:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:50,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:50,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-21 22:17:50,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:50,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:50,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952055268] [2023-12-21 22:17:50,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952055268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:50,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:50,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:50,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799567532] [2023-12-21 22:17:50,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:50,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:50,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:50,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:50,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:50,456 INFO L87 Difference]: Start difference. First operand 9410 states and 12724 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:51,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:51,442 INFO L93 Difference]: Finished difference Result 23533 states and 29690 transitions. [2023-12-21 22:17:51,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:51,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 213 [2023-12-21 22:17:51,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:51,471 INFO L225 Difference]: With dead ends: 23533 [2023-12-21 22:17:51,471 INFO L226 Difference]: Without dead ends: 16261 [2023-12-21 22:17:51,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:51,485 INFO L413 NwaCegarLoop]: 4371 mSDtfsCounter, 4454 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4459 SdHoareTripleChecker+Valid, 8888 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:51,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4459 Valid, 8888 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:51,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16261 states. [2023-12-21 22:17:52,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16261 to 16259. [2023-12-21 22:17:52,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16259 states, 15442 states have (on average 1.2971117730863877) internal successors, (20030), 15473 states have internal predecessors, (20030), 415 states have call successors, (415), 368 states have call predecessors, (415), 400 states have return successors, (483), 419 states have call predecessors, (483), 415 states have call successors, (483) [2023-12-21 22:17:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16259 states to 16259 states and 20928 transitions. [2023-12-21 22:17:52,283 INFO L78 Accepts]: Start accepts. Automaton has 16259 states and 20928 transitions. Word has length 213 [2023-12-21 22:17:52,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:52,283 INFO L495 AbstractCegarLoop]: Abstraction has 16259 states and 20928 transitions. [2023-12-21 22:17:52,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:52,283 INFO L276 IsEmpty]: Start isEmpty. Operand 16259 states and 20928 transitions. [2023-12-21 22:17:52,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-21 22:17:52,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:52,291 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:52,314 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 (35)] Forceful destruction successful, exit code 0 [2023-12-21 22:17:52,496 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 [2023-12-21 22:17:52,497 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:52,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:52,497 INFO L85 PathProgramCache]: Analyzing trace with hash 775918160, now seen corresponding path program 1 times [2023-12-21 22:17:52,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:52,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243282489] [2023-12-21 22:17:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:52,498 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 [2023-12-21 22:17:52,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:52,499 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) [2023-12-21 22:17:52,500 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 [2023-12-21 22:17:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:52,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:17:52,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:52,656 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-21 22:17:52,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:52,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:52,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243282489] [2023-12-21 22:17:52,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243282489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:52,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:52,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:17:52,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385384344] [2023-12-21 22:17:52,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:52,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:17:52,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:52,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:17:52,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:52,658 INFO L87 Difference]: Start difference. First operand 16259 states and 20928 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:53,301 INFO L93 Difference]: Finished difference Result 30369 states and 37849 transitions. [2023-12-21 22:17:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:17:53,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 213 [2023-12-21 22:17:53,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:53,323 INFO L225 Difference]: With dead ends: 30369 [2023-12-21 22:17:53,323 INFO L226 Difference]: Without dead ends: 16248 [2023-12-21 22:17:53,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:17:53,333 INFO L413 NwaCegarLoop]: 4309 mSDtfsCounter, 380 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 8266 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:53,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 8266 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 22:17:53,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16248 states. [2023-12-21 22:17:53,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16248 to 16248. [2023-12-21 22:17:53,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16248 states, 15434 states have (on average 1.2968122327329272) internal successors, (20015), 15464 states have internal predecessors, (20015), 412 states have call successors, (412), 368 states have call predecessors, (412), 400 states have return successors, (480), 416 states have call predecessors, (480), 412 states have call successors, (480) [2023-12-21 22:17:53,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16248 states to 16248 states and 20907 transitions. [2023-12-21 22:17:53,969 INFO L78 Accepts]: Start accepts. Automaton has 16248 states and 20907 transitions. Word has length 213 [2023-12-21 22:17:53,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:53,969 INFO L495 AbstractCegarLoop]: Abstraction has 16248 states and 20907 transitions. [2023-12-21 22:17:53,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:17:53,969 INFO L276 IsEmpty]: Start isEmpty. Operand 16248 states and 20907 transitions. [2023-12-21 22:17:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-21 22:17:53,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:53,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:53,983 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 [2023-12-21 22:17:54,180 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 [2023-12-21 22:17:54,181 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:54,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:54,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1606021453, now seen corresponding path program 1 times [2023-12-21 22:17:54,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:54,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074292952] [2023-12-21 22:17:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:54,182 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 [2023-12-21 22:17:54,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:54,183 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) [2023-12-21 22:17:54,185 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 [2023-12-21 22:17:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:54,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:54,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:54,525 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-21 22:17:54,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:54,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:54,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074292952] [2023-12-21 22:17:54,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074292952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:54,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:54,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:54,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220155808] [2023-12-21 22:17:54,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:54,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:54,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:54,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:54,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:54,526 INFO L87 Difference]: Start difference. First operand 16248 states and 20907 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:55,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:17:55,830 INFO L93 Difference]: Finished difference Result 43620 states and 53725 transitions. [2023-12-21 22:17:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:17:55,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 215 [2023-12-21 22:17:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:17:55,873 INFO L225 Difference]: With dead ends: 43620 [2023-12-21 22:17:55,873 INFO L226 Difference]: Without dead ends: 29510 [2023-12-21 22:17:55,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:17:55,902 INFO L413 NwaCegarLoop]: 4221 mSDtfsCounter, 4467 mSDsluCounter, 4386 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 8607 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:17:55,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 8607 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:17:55,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29510 states. [2023-12-21 22:17:57,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29510 to 29508. [2023-12-21 22:17:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29508 states, 27934 states have (on average 1.2540631488508627) internal successors, (35031), 28000 states have internal predecessors, (35031), 788 states have call successors, (788), 704 states have call predecessors, (788), 784 states have return successors, (952), 804 states have call predecessors, (952), 788 states have call successors, (952) [2023-12-21 22:17:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29508 states to 29508 states and 36771 transitions. [2023-12-21 22:17:57,145 INFO L78 Accepts]: Start accepts. Automaton has 29508 states and 36771 transitions. Word has length 215 [2023-12-21 22:17:57,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:17:57,145 INFO L495 AbstractCegarLoop]: Abstraction has 29508 states and 36771 transitions. [2023-12-21 22:17:57,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:17:57,145 INFO L276 IsEmpty]: Start isEmpty. Operand 29508 states and 36771 transitions. [2023-12-21 22:17:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-21 22:17:57,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:17:57,156 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:17:57,163 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 [2023-12-21 22:17:57,361 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 [2023-12-21 22:17:57,361 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:17:57,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:17:57,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1482086066, now seen corresponding path program 1 times [2023-12-21 22:17:57,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:17:57,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694163198] [2023-12-21 22:17:57,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:17:57,362 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 [2023-12-21 22:17:57,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:17:57,363 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) [2023-12-21 22:17:57,365 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 [2023-12-21 22:17:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:17:57,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:17:57,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:17:57,684 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-21 22:17:57,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:17:57,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:17:57,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694163198] [2023-12-21 22:17:57,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694163198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:17:57,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:17:57,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:17:57,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686195781] [2023-12-21 22:17:57,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:17:57,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:17:57,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:17:57,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:17:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:17:57,686 INFO L87 Difference]: Start difference. First operand 29508 states and 36771 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:00,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:00,041 INFO L93 Difference]: Finished difference Result 93629 states and 113255 transitions. [2023-12-21 22:18:00,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:18:00,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 217 [2023-12-21 22:18:00,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:00,156 INFO L225 Difference]: With dead ends: 93629 [2023-12-21 22:18:00,157 INFO L226 Difference]: Without dead ends: 66259 [2023-12-21 22:18:00,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:18:00,179 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 4454 mSDsluCounter, 4493 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4460 SdHoareTripleChecker+Valid, 8856 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:00,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4460 Valid, 8856 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:18:00,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66259 states. [2023-12-21 22:18:02,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66259 to 65041. [2023-12-21 22:18:02,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65041 states, 61448 states have (on average 1.220967321963286) internal successors, (75026), 61883 states have internal predecessors, (75026), 1511 states have call successors, (1511), 1344 states have call predecessors, (1511), 2080 states have return successors, (2444), 1815 states have call predecessors, (2444), 1511 states have call successors, (2444) [2023-12-21 22:18:02,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65041 states to 65041 states and 78981 transitions. [2023-12-21 22:18:02,914 INFO L78 Accepts]: Start accepts. Automaton has 65041 states and 78981 transitions. Word has length 217 [2023-12-21 22:18:02,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:02,914 INFO L495 AbstractCegarLoop]: Abstraction has 65041 states and 78981 transitions. [2023-12-21 22:18:02,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:02,914 INFO L276 IsEmpty]: Start isEmpty. Operand 65041 states and 78981 transitions. [2023-12-21 22:18:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-21 22:18:02,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:02,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:02,945 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 (38)] Forceful destruction successful, exit code 0 [2023-12-21 22:18:03,142 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 [2023-12-21 22:18:03,142 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:03,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:03,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2091961808, now seen corresponding path program 1 times [2023-12-21 22:18:03,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:03,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472934162] [2023-12-21 22:18:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:03,143 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 [2023-12-21 22:18:03,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:03,144 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-12-21 22:18:03,247 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 (39)] Waiting until timeout for monitored process [2023-12-21 22:18:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:03,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:18:03,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-21 22:18:03,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:03,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:03,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472934162] [2023-12-21 22:18:03,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472934162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:03,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:03,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:18:03,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942190443] [2023-12-21 22:18:03,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:03,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:18:03,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:03,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:18:03,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:03,404 INFO L87 Difference]: Start difference. First operand 65041 states and 78981 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:05,590 INFO L93 Difference]: Finished difference Result 127936 states and 153960 transitions. [2023-12-21 22:18:05,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:18:05,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 217 [2023-12-21 22:18:05,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:05,717 INFO L225 Difference]: With dead ends: 127936 [2023-12-21 22:18:05,717 INFO L226 Difference]: Without dead ends: 65032 [2023-12-21 22:18:05,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:05,768 INFO L413 NwaCegarLoop]: 4308 mSDtfsCounter, 377 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:05,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 8265 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:18:05,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65032 states. [2023-12-21 22:18:08,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65032 to 65032. [2023-12-21 22:18:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65032 states, 61442 states have (on average 1.220891247029719) internal successors, (75014), 61876 states have internal predecessors, (75014), 1508 states have call successors, (1508), 1344 states have call predecessors, (1508), 2080 states have return successors, (2440), 1812 states have call predecessors, (2440), 1508 states have call successors, (2440) [2023-12-21 22:18:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65032 states to 65032 states and 78962 transitions. [2023-12-21 22:18:08,549 INFO L78 Accepts]: Start accepts. Automaton has 65032 states and 78962 transitions. Word has length 217 [2023-12-21 22:18:08,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:08,549 INFO L495 AbstractCegarLoop]: Abstraction has 65032 states and 78962 transitions. [2023-12-21 22:18:08,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:08,549 INFO L276 IsEmpty]: Start isEmpty. Operand 65032 states and 78962 transitions. [2023-12-21 22:18:08,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-21 22:18:08,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:08,568 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:08,572 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 (39)] Forceful destruction successful, exit code 0 [2023-12-21 22:18:08,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:18:08,772 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:08,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:08,773 INFO L85 PathProgramCache]: Analyzing trace with hash 430431219, now seen corresponding path program 1 times [2023-12-21 22:18:08,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:08,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805238642] [2023-12-21 22:18:08,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:08,773 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 [2023-12-21 22:18:08,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:08,774 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-12-21 22:18:08,804 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 (40)] Waiting until timeout for monitored process [2023-12-21 22:18:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:08,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:18:08,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-21 22:18:09,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:09,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:09,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805238642] [2023-12-21 22:18:09,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [805238642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:09,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:09,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:18:09,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069615810] [2023-12-21 22:18:09,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:09,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:18:09,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:09,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:18:09,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:18:09,117 INFO L87 Difference]: Start difference. First operand 65032 states and 78962 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:13,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:13,937 INFO L93 Difference]: Finished difference Result 185852 states and 222875 transitions. [2023-12-21 22:18:13,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:18:13,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 219 [2023-12-21 22:18:13,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:14,164 INFO L225 Difference]: With dead ends: 185852 [2023-12-21 22:18:14,164 INFO L226 Difference]: Without dead ends: 122958 [2023-12-21 22:18:14,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:18:14,219 INFO L413 NwaCegarLoop]: 4330 mSDtfsCounter, 4433 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4439 SdHoareTripleChecker+Valid, 8794 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:14,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4439 Valid, 8794 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 22:18:14,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122958 states. [2023-12-21 22:18:19,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122958 to 122956. [2023-12-21 22:18:19,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122956 states, 116035 states have (on average 1.2079717326668677) internal successors, (140167), 116902 states have internal predecessors, (140167), 2887 states have call successors, (2887), 2560 states have call predecessors, (2887), 4032 states have return successors, (4763), 3495 states have call predecessors, (4763), 2887 states have call successors, (4763) [2023-12-21 22:18:19,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122956 states to 122956 states and 147817 transitions. [2023-12-21 22:18:19,803 INFO L78 Accepts]: Start accepts. Automaton has 122956 states and 147817 transitions. Word has length 219 [2023-12-21 22:18:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:19,803 INFO L495 AbstractCegarLoop]: Abstraction has 122956 states and 147817 transitions. [2023-12-21 22:18:19,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:19,804 INFO L276 IsEmpty]: Start isEmpty. Operand 122956 states and 147817 transitions. [2023-12-21 22:18:19,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-21 22:18:19,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:19,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:19,875 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 (40)] Forceful destruction successful, exit code 0 [2023-12-21 22:18:20,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:18:20,072 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:20,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:20,072 INFO L85 PathProgramCache]: Analyzing trace with hash -443234383, now seen corresponding path program 1 times [2023-12-21 22:18:20,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:20,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334026038] [2023-12-21 22:18:20,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:20,073 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 [2023-12-21 22:18:20,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:20,074 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2023-12-21 22:18:20,075 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 (41)] Waiting until timeout for monitored process [2023-12-21 22:18:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:20,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:18:20,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-21 22:18:20,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:20,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:20,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334026038] [2023-12-21 22:18:20,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334026038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:20,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:20,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:18:20,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125658346] [2023-12-21 22:18:20,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:20,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:18:20,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:20,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:18:20,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:20,204 INFO L87 Difference]: Start difference. First operand 122956 states and 147817 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:24,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:24,791 INFO L93 Difference]: Finished difference Result 243766 states and 291634 transitions. [2023-12-21 22:18:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:18:24,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 219 [2023-12-21 22:18:24,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:25,119 INFO L225 Difference]: With dead ends: 243766 [2023-12-21 22:18:25,119 INFO L226 Difference]: Without dead ends: 122948 [2023-12-21 22:18:25,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:25,223 INFO L413 NwaCegarLoop]: 4307 mSDtfsCounter, 375 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 8264 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:25,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 8264 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 22:18:25,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122948 states. [2023-12-21 22:18:30,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122948 to 122948. [2023-12-21 22:18:30,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122948 states, 116030 states have (on average 1.2079376023442214) internal successors, (140157), 116896 states have internal predecessors, (140157), 2884 states have call successors, (2884), 2560 states have call predecessors, (2884), 4032 states have return successors, (4760), 3492 states have call predecessors, (4760), 2884 states have call successors, (4760) [2023-12-21 22:18:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122948 states to 122948 states and 147801 transitions. [2023-12-21 22:18:30,605 INFO L78 Accepts]: Start accepts. Automaton has 122948 states and 147801 transitions. Word has length 219 [2023-12-21 22:18:30,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:30,605 INFO L495 AbstractCegarLoop]: Abstraction has 122948 states and 147801 transitions. [2023-12-21 22:18:30,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 22:18:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 122948 states and 147801 transitions. [2023-12-21 22:18:30,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-21 22:18:30,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:30,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:30,655 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 (41)] Forceful destruction successful, exit code 0 [2023-12-21 22:18:30,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:18:30,853 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:30,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:30,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1736582478, now seen corresponding path program 1 times [2023-12-21 22:18:30,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:30,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914456155] [2023-12-21 22:18:30,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:30,854 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 [2023-12-21 22:18:30,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:30,855 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-12-21 22:18:30,893 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 (42)] Waiting until timeout for monitored process [2023-12-21 22:18:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:31,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 22:18:31,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-21 22:18:31,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:31,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:31,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914456155] [2023-12-21 22:18:31,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914456155] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:31,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:31,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 22:18:31,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223222596] [2023-12-21 22:18:31,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:31,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 22:18:31,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:31,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 22:18:31,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 22:18:31,261 INFO L87 Difference]: Start difference. First operand 122948 states and 147801 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:39,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:18:39,927 INFO L93 Difference]: Finished difference Result 354963 states and 423704 transitions. [2023-12-21 22:18:39,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 22:18:39,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 221 [2023-12-21 22:18:39,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:18:40,577 INFO L225 Difference]: With dead ends: 354963 [2023-12-21 22:18:40,578 INFO L226 Difference]: Without dead ends: 234153 [2023-12-21 22:18:40,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:18:40,685 INFO L413 NwaCegarLoop]: 4316 mSDtfsCounter, 4427 mSDsluCounter, 4446 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4433 SdHoareTripleChecker+Valid, 8762 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:18:40,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4433 Valid, 8762 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 22:18:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234153 states. [2023-12-21 22:18:50,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234153 to 234151. [2023-12-21 22:18:50,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234151 states, 220766 states have (on average 1.1998767926220524) internal successors, (264892), 222529 states have internal predecessors, (264892), 5511 states have call successors, (5511), 4864 states have call predecessors, (5511), 7872 states have return successors, (9339), 6759 states have call predecessors, (9339), 5511 states have call successors, (9339) [2023-12-21 22:18:50,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234151 states to 234151 states and 279742 transitions. [2023-12-21 22:18:50,907 INFO L78 Accepts]: Start accepts. Automaton has 234151 states and 279742 transitions. Word has length 221 [2023-12-21 22:18:50,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:18:50,908 INFO L495 AbstractCegarLoop]: Abstraction has 234151 states and 279742 transitions. [2023-12-21 22:18:50,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 22:18:50,908 INFO L276 IsEmpty]: Start isEmpty. Operand 234151 states and 279742 transitions. [2023-12-21 22:18:50,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-21 22:18:50,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:18:50,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 22:18:50,986 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 (42)] Ended with exit code 0 [2023-12-21 22:18:51,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:18:51,186 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:18:51,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:18:51,187 INFO L85 PathProgramCache]: Analyzing trace with hash 422752592, now seen corresponding path program 1 times [2023-12-21 22:18:51,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:18:51,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883123030] [2023-12-21 22:18:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:18:51,188 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 [2023-12-21 22:18:51,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:18:51,189 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2023-12-21 22:18:51,216 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 (43)] Waiting until timeout for monitored process [2023-12-21 22:18:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:18:51,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:18:51,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:18:51,358 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-21 22:18:51,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:18:51,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:18:51,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883123030] [2023-12-21 22:18:51,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883123030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:18:51,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:18:51,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:18:51,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100270629] [2023-12-21 22:18:51,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:18:51,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:18:51,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:18:51,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:18:51,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:18:51,360 INFO L87 Difference]: Start difference. First operand 234151 states and 279742 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)