/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.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:36:54,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:36:54,523 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:36:54,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:36:54,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:36:54,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:36:54,540 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:36:54,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:36:54,541 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:36:54,544 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:36:54,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:36:54,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:36:54,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:36:54,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:36:54,546 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:36:54,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:36:54,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:36:54,547 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:36:54,547 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:36:54,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:36:54,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:36:54,548 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:36:54,548 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:36:54,548 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:36:54,548 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:36:54,548 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:36:54,548 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:36:54,549 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:36:54,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:36:54,549 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:36:54,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:36:54,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:36:54,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:36:54,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:36:54,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:36:54,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:36:54,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:36:54,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:36:54,551 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:36:54,551 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:36:54,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:36:54,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:36:54,552 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:36:54,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:36:54,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:36:54,553 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:36:54,553 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:36:54,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:36:54,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:36:54,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:36:54,737 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:36:54,738 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:36:54,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.06.cil-1.c [2023-12-16 07:36:55,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:36:56,329 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:36:56,329 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.06.cil-1.c [2023-12-16 07:36:56,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97a278f3e/3931b3b10032462f952f7fc7bef38ee2/FLAG93ed1d5ca [2023-12-16 07:36:56,385 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97a278f3e/3931b3b10032462f952f7fc7bef38ee2 [2023-12-16 07:36:56,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:36:56,389 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:36:56,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:36:56,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:36:56,395 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:36:56,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:36:56" (1/1) ... [2023-12-16 07:36:56,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87e5f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:56, skipping insertion in model container [2023-12-16 07:36:56,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:36:56" (1/1) ... [2023-12-16 07:36:56,521 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:36:57,920 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.06.cil-1.c[380593,380606] [2023-12-16 07:36:57,947 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.06.cil-1.c[383339,383352] [2023-12-16 07:36:58,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:36:58,127 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:36:58,701 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.06.cil-1.c[380593,380606] [2023-12-16 07:36:58,713 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.06.cil-1.c[383339,383352] [2023-12-16 07:36:58,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:36:58,774 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:36:58,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58 WrapperNode [2023-12-16 07:36:58,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:36:58,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:36:58,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:36:58,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:36:58,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:58,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,167 INFO L138 Inliner]: procedures = 57, calls = 60, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 12848 [2023-12-16 07:36:59,168 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:36:59,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:36:59,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:36:59,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:36:59,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,238 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,433 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 07:36:59,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,691 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:36:59,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:36:59,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:36:59,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:36:59,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (1/1) ... [2023-12-16 07:36:59,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:36:59,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:36:59,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 07:36:59,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 07:36:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:36:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:36:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:36:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:36:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:36:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:36:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:36:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:36:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 07:36:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 07:36:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:36:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:36:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:36:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:36:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:36:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:36:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:36:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:36:59,902 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:36:59,904 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:37:07,806 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:37:07,896 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:37:07,897 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-12-16 07:37:07,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:37:07 BoogieIcfgContainer [2023-12-16 07:37:07,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:37:07,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:37:07,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:37:07,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:37:07,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:36:56" (1/3) ... [2023-12-16 07:37:07,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c4c713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:37:07, skipping insertion in model container [2023-12-16 07:37:07,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:58" (2/3) ... [2023-12-16 07:37:07,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c4c713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:37:07, skipping insertion in model container [2023-12-16 07:37:07,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:37:07" (3/3) ... [2023-12-16 07:37:07,905 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.06.cil-1.c [2023-12-16 07:37:07,917 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:37:07,917 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:37:07,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:37:07,992 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;@1be5d44e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:37:07,992 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:37:08,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 07:37:08,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:08,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:08,025 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] [2023-12-16 07:37:08,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:08,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:08,031 INFO L85 PathProgramCache]: Analyzing trace with hash 633022234, now seen corresponding path program 1 times [2023-12-16 07:37:08,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:08,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852221068] [2023-12-16 07:37:08,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:08,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:08,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:08,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:08,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:37:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:08,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:08,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:08,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:08,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:08,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852221068] [2023-12-16 07:37:08,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852221068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:08,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:08,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:08,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736677724] [2023-12-16 07:37:08,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:08,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:08,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:08,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:08,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:08,360 INFO L87 Difference]: Start difference. First operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:08,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:08,556 INFO L93 Difference]: Finished difference Result 4673 states and 8761 transitions. [2023-12-16 07:37:08,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:08,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:08,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:08,577 INFO L225 Difference]: With dead ends: 4673 [2023-12-16 07:37:08,577 INFO L226 Difference]: Without dead ends: 2336 [2023-12-16 07:37:08,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:08,590 INFO L413 NwaCegarLoop]: 4275 mSDtfsCounter, 334 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:08,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 8234 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-16 07:37:08,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-16 07:37:08,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8460537727666955) internal successors, (4257), 2309 states have internal predecessors, (4257), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:37:08,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4299 transitions. [2023-12-16 07:37:08,692 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4299 transitions. Word has length 102 [2023-12-16 07:37:08,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:08,693 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4299 transitions. [2023-12-16 07:37:08,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:08,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4299 transitions. [2023-12-16 07:37:08,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:08,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:08,695 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] [2023-12-16 07:37:08,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:08,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:08,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:08,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:08,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1721363048, now seen corresponding path program 1 times [2023-12-16 07:37:08,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:08,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789181230] [2023-12-16 07:37:08,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:08,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:08,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:08,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:08,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 07:37:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:09,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:09,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:09,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:09,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:09,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:09,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789181230] [2023-12-16 07:37:09,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789181230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:09,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:09,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:09,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404472016] [2023-12-16 07:37:09,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:09,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:09,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:09,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:09,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:09,110 INFO L87 Difference]: Start difference. First operand 2336 states and 4299 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:09,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:09,520 INFO L93 Difference]: Finished difference Result 2539 states and 4624 transitions. [2023-12-16 07:37:09,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:09,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:09,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:09,527 INFO L225 Difference]: With dead ends: 2539 [2023-12-16 07:37:09,527 INFO L226 Difference]: Without dead ends: 2336 [2023-12-16 07:37:09,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:09,529 INFO L413 NwaCegarLoop]: 4171 mSDtfsCounter, 4400 mSDsluCounter, 8246 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4414 SdHoareTripleChecker+Valid, 12417 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:09,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4414 Valid, 12417 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:09,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-16 07:37:09,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-16 07:37:09,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.844752818733738) internal successors, (4254), 2309 states have internal predecessors, (4254), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:37:09,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4296 transitions. [2023-12-16 07:37:09,567 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4296 transitions. Word has length 102 [2023-12-16 07:37:09,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:09,567 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4296 transitions. [2023-12-16 07:37:09,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4296 transitions. [2023-12-16 07:37:09,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:09,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:09,568 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] [2023-12-16 07:37:09,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 07:37:09,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:09,775 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:09,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:09,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1316629336, now seen corresponding path program 1 times [2023-12-16 07:37:09,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:09,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809717294] [2023-12-16 07:37:09,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:09,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:09,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:09,786 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:09,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 07:37:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:09,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:09,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:09,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:09,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:09,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809717294] [2023-12-16 07:37:09,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809717294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:09,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:09,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:09,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631429823] [2023-12-16 07:37:09,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:09,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:09,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:09,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:09,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:09,953 INFO L87 Difference]: Start difference. First operand 2336 states and 4296 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:10,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:10,268 INFO L93 Difference]: Finished difference Result 2539 states and 4618 transitions. [2023-12-16 07:37:10,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:10,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:10,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:10,277 INFO L225 Difference]: With dead ends: 2539 [2023-12-16 07:37:10,277 INFO L226 Difference]: Without dead ends: 2336 [2023-12-16 07:37:10,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:10,279 INFO L413 NwaCegarLoop]: 4168 mSDtfsCounter, 4394 mSDsluCounter, 8242 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4408 SdHoareTripleChecker+Valid, 12410 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:10,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4408 Valid, 12410 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:37:10,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-16 07:37:10,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-16 07:37:10,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8434518647007805) internal successors, (4251), 2309 states have internal predecessors, (4251), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:37:10,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4293 transitions. [2023-12-16 07:37:10,320 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4293 transitions. Word has length 102 [2023-12-16 07:37:10,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:10,320 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4293 transitions. [2023-12-16 07:37:10,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:10,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4293 transitions. [2023-12-16 07:37:10,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:10,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:10,322 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] [2023-12-16 07:37:10,328 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 [2023-12-16 07:37:10,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:10,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:10,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:10,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1101855142, now seen corresponding path program 1 times [2023-12-16 07:37:10,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:10,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306020905] [2023-12-16 07:37:10,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:10,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:10,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:10,530 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:10,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 07:37:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:10,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:10,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:10,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:10,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:10,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:10,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306020905] [2023-12-16 07:37:10,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306020905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:10,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:10,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:10,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939851949] [2023-12-16 07:37:10,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:10,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:10,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:10,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:10,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:10,689 INFO L87 Difference]: Start difference. First operand 2336 states and 4293 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:10,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:10,973 INFO L93 Difference]: Finished difference Result 2539 states and 4612 transitions. [2023-12-16 07:37:10,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:10,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:10,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:10,981 INFO L225 Difference]: With dead ends: 2539 [2023-12-16 07:37:10,981 INFO L226 Difference]: Without dead ends: 2336 [2023-12-16 07:37:10,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:10,985 INFO L413 NwaCegarLoop]: 4165 mSDtfsCounter, 4388 mSDsluCounter, 8238 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4402 SdHoareTripleChecker+Valid, 12403 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:10,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4402 Valid, 12403 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:37:10,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-16 07:37:11,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-16 07:37:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.842150910667823) internal successors, (4248), 2309 states have internal predecessors, (4248), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:37:11,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4290 transitions. [2023-12-16 07:37:11,036 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4290 transitions. Word has length 102 [2023-12-16 07:37:11,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:11,036 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4290 transitions. [2023-12-16 07:37:11,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:11,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4290 transitions. [2023-12-16 07:37:11,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:11,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:11,037 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] [2023-12-16 07:37:11,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:11,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:11,242 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:11,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:11,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1594782694, now seen corresponding path program 1 times [2023-12-16 07:37:11,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:11,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909209474] [2023-12-16 07:37:11,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:11,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:11,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:11,245 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:11,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 07:37:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:11,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:11,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:11,385 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:11,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:11,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909209474] [2023-12-16 07:37:11,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909209474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:11,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:11,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:11,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626117339] [2023-12-16 07:37:11,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:11,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:11,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:11,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:11,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:11,387 INFO L87 Difference]: Start difference. First operand 2336 states and 4290 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:11,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:11,769 INFO L93 Difference]: Finished difference Result 2539 states and 4606 transitions. [2023-12-16 07:37:11,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:11,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:11,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:11,777 INFO L225 Difference]: With dead ends: 2539 [2023-12-16 07:37:11,777 INFO L226 Difference]: Without dead ends: 2336 [2023-12-16 07:37:11,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:11,779 INFO L413 NwaCegarLoop]: 4162 mSDtfsCounter, 4382 mSDsluCounter, 8234 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4396 SdHoareTripleChecker+Valid, 12396 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:11,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4396 Valid, 12396 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-16 07:37:11,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-16 07:37:11,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8408499566348655) internal successors, (4245), 2309 states have internal predecessors, (4245), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:37:11,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4287 transitions. [2023-12-16 07:37:11,822 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4287 transitions. Word has length 102 [2023-12-16 07:37:11,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:11,823 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4287 transitions. [2023-12-16 07:37:11,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:11,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4287 transitions. [2023-12-16 07:37:11,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:11,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:11,824 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] [2023-12-16 07:37:11,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:12,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:12,028 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:12,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:12,029 INFO L85 PathProgramCache]: Analyzing trace with hash -779399590, now seen corresponding path program 1 times [2023-12-16 07:37:12,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:12,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658998045] [2023-12-16 07:37:12,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:12,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:12,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:12,031 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:12,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:37:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:12,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:12,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:12,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:12,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:12,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:12,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658998045] [2023-12-16 07:37:12,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658998045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:12,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:12,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:12,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102374935] [2023-12-16 07:37:12,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:12,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:12,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:12,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:12,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:12,190 INFO L87 Difference]: Start difference. First operand 2336 states and 4287 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:12,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:12,531 INFO L93 Difference]: Finished difference Result 2539 states and 4600 transitions. [2023-12-16 07:37:12,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:12,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:12,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:12,538 INFO L225 Difference]: With dead ends: 2539 [2023-12-16 07:37:12,539 INFO L226 Difference]: Without dead ends: 2336 [2023-12-16 07:37:12,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:12,542 INFO L413 NwaCegarLoop]: 4159 mSDtfsCounter, 4376 mSDsluCounter, 8230 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4390 SdHoareTripleChecker+Valid, 12389 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:12,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4390 Valid, 12389 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:12,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-16 07:37:12,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-16 07:37:12,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8395490026019081) internal successors, (4242), 2309 states have internal predecessors, (4242), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:37:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4284 transitions. [2023-12-16 07:37:12,582 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4284 transitions. Word has length 102 [2023-12-16 07:37:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:12,582 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4284 transitions. [2023-12-16 07:37:12,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:12,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4284 transitions. [2023-12-16 07:37:12,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:12,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:12,586 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] [2023-12-16 07:37:12,592 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 (7)] Ended with exit code 0 [2023-12-16 07:37:12,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:12,791 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:12,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:12,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1584380902, now seen corresponding path program 1 times [2023-12-16 07:37:12,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:12,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728455745] [2023-12-16 07:37:12,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:12,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:12,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:12,793 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:12,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 07:37:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:12,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:12,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:12,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:12,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:12,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:12,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728455745] [2023-12-16 07:37:12,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728455745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:12,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:12,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:12,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874716408] [2023-12-16 07:37:12,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:12,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:12,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:12,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:12,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:12,941 INFO L87 Difference]: Start difference. First operand 2336 states and 4284 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:13,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:13,227 INFO L93 Difference]: Finished difference Result 2539 states and 4594 transitions. [2023-12-16 07:37:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:13,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:13,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:13,236 INFO L225 Difference]: With dead ends: 2539 [2023-12-16 07:37:13,236 INFO L226 Difference]: Without dead ends: 2336 [2023-12-16 07:37:13,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:13,238 INFO L413 NwaCegarLoop]: 4156 mSDtfsCounter, 4370 mSDsluCounter, 8226 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4384 SdHoareTripleChecker+Valid, 12382 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:13,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4384 Valid, 12382 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:37:13,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2023-12-16 07:37:13,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2023-12-16 07:37:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8382480485689505) internal successors, (4239), 2309 states have internal predecessors, (4239), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:37:13,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4281 transitions. [2023-12-16 07:37:13,286 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4281 transitions. Word has length 102 [2023-12-16 07:37:13,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:13,286 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4281 transitions. [2023-12-16 07:37:13,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:13,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4281 transitions. [2023-12-16 07:37:13,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:13,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:13,288 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] [2023-12-16 07:37:13,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:13,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:13,493 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:13,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:13,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1714787930, now seen corresponding path program 1 times [2023-12-16 07:37:13,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:13,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453161415] [2023-12-16 07:37:13,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:13,494 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 [2023-12-16 07:37:13,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:13,495 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:13,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 07:37:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:13,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:13,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:13,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:13,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:13,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453161415] [2023-12-16 07:37:13,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453161415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:13,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:13,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:13,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52658528] [2023-12-16 07:37:13,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:13,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:13,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:13,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:13,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:13,630 INFO L87 Difference]: Start difference. First operand 2336 states and 4281 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:14,083 INFO L93 Difference]: Finished difference Result 2586 states and 4665 transitions. [2023-12-16 07:37:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:14,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:14,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:14,101 INFO L225 Difference]: With dead ends: 2586 [2023-12-16 07:37:14,101 INFO L226 Difference]: Without dead ends: 2383 [2023-12-16 07:37:14,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:14,104 INFO L413 NwaCegarLoop]: 4154 mSDtfsCounter, 4424 mSDsluCounter, 8222 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4438 SdHoareTripleChecker+Valid, 12376 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:14,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4438 Valid, 12376 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:37:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2023-12-16 07:37:14,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2383. [2023-12-16 07:37:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 2350 states have (on average 1.8297872340425532) internal successors, (4300), 2353 states have internal predecessors, (4300), 23 states have call successors, (23), 9 states have call predecessors, (23), 8 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 07:37:14,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 4344 transitions. [2023-12-16 07:37:14,155 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 4344 transitions. Word has length 102 [2023-12-16 07:37:14,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:14,155 INFO L495 AbstractCegarLoop]: Abstraction has 2383 states and 4344 transitions. [2023-12-16 07:37:14,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:14,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 4344 transitions. [2023-12-16 07:37:14,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:14,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:14,156 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] [2023-12-16 07:37:14,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:14,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:14,362 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:14,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:14,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1850462939, now seen corresponding path program 1 times [2023-12-16 07:37:14,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:14,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617300926] [2023-12-16 07:37:14,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:14,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:14,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:14,365 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:14,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 07:37:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:14,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:14,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:14,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:14,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:14,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:14,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617300926] [2023-12-16 07:37:14,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617300926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:14,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:14,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:14,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840236537] [2023-12-16 07:37:14,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:14,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:14,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:14,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:14,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:14,524 INFO L87 Difference]: Start difference. First operand 2383 states and 4344 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:14,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:14,852 INFO L93 Difference]: Finished difference Result 2680 states and 4791 transitions. [2023-12-16 07:37:14,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:14,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:14,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:14,859 INFO L225 Difference]: With dead ends: 2680 [2023-12-16 07:37:14,860 INFO L226 Difference]: Without dead ends: 2430 [2023-12-16 07:37:14,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:14,862 INFO L413 NwaCegarLoop]: 4151 mSDtfsCounter, 4416 mSDsluCounter, 8218 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4430 SdHoareTripleChecker+Valid, 12369 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:14,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4430 Valid, 12369 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2023-12-16 07:37:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2430. [2023-12-16 07:37:14,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 2394 states have (on average 1.8208020050125313) internal successors, (4359), 2397 states have internal predecessors, (4359), 24 states have call successors, (24), 11 states have call predecessors, (24), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 07:37:14,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 4405 transitions. [2023-12-16 07:37:14,903 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 4405 transitions. Word has length 102 [2023-12-16 07:37:14,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:14,903 INFO L495 AbstractCegarLoop]: Abstraction has 2430 states and 4405 transitions. [2023-12-16 07:37:14,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:14,903 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 4405 transitions. [2023-12-16 07:37:14,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:14,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:14,904 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] [2023-12-16 07:37:14,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:15,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:15,108 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:15,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:15,109 INFO L85 PathProgramCache]: Analyzing trace with hash -147272548, now seen corresponding path program 1 times [2023-12-16 07:37:15,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:15,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816044669] [2023-12-16 07:37:15,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:15,109 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 [2023-12-16 07:37:15,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:15,111 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:15,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 07:37:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:15,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:15,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:15,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:15,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:15,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816044669] [2023-12-16 07:37:15,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816044669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:15,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:15,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:15,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751334452] [2023-12-16 07:37:15,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:15,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:15,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:15,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:15,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:15,237 INFO L87 Difference]: Start difference. First operand 2430 states and 4405 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:15,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:15,643 INFO L93 Difference]: Finished difference Result 2774 states and 4913 transitions. [2023-12-16 07:37:15,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:15,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:15,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:15,651 INFO L225 Difference]: With dead ends: 2774 [2023-12-16 07:37:15,651 INFO L226 Difference]: Without dead ends: 2477 [2023-12-16 07:37:15,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:15,653 INFO L413 NwaCegarLoop]: 4148 mSDtfsCounter, 4410 mSDsluCounter, 8214 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4424 SdHoareTripleChecker+Valid, 12362 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:15,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4424 Valid, 12362 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:15,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2023-12-16 07:37:15,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 2477. [2023-12-16 07:37:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2438 states have (on average 1.8113207547169812) internal successors, (4416), 2441 states have internal predecessors, (4416), 25 states have call successors, (25), 13 states have call predecessors, (25), 12 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 07:37:15,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 4464 transitions. [2023-12-16 07:37:15,700 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 4464 transitions. Word has length 102 [2023-12-16 07:37:15,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:15,700 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 4464 transitions. [2023-12-16 07:37:15,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 4464 transitions. [2023-12-16 07:37:15,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:15,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:15,701 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] [2023-12-16 07:37:15,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:15,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:15,919 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:15,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:15,919 INFO L85 PathProgramCache]: Analyzing trace with hash -17405699, now seen corresponding path program 1 times [2023-12-16 07:37:15,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:15,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558802812] [2023-12-16 07:37:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:15,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:15,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:15,921 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:15,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 07:37:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:16,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:16,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:16,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:16,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:16,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:16,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558802812] [2023-12-16 07:37:16,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558802812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:16,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:16,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:16,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132285158] [2023-12-16 07:37:16,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:16,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:16,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:16,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:16,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:16,088 INFO L87 Difference]: Start difference. First operand 2477 states and 4464 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:16,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:16,602 INFO L93 Difference]: Finished difference Result 2868 states and 5031 transitions. [2023-12-16 07:37:16,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:16,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:16,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:16,611 INFO L225 Difference]: With dead ends: 2868 [2023-12-16 07:37:16,612 INFO L226 Difference]: Without dead ends: 2524 [2023-12-16 07:37:16,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:16,615 INFO L413 NwaCegarLoop]: 4145 mSDtfsCounter, 4403 mSDsluCounter, 8210 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4417 SdHoareTripleChecker+Valid, 12355 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:16,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4417 Valid, 12355 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:37:16,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2023-12-16 07:37:16,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2524. [2023-12-16 07:37:16,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2524 states, 2482 states have (on average 1.8013698630136987) internal successors, (4471), 2485 states have internal predecessors, (4471), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:37:16,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2524 states to 2524 states and 4521 transitions. [2023-12-16 07:37:16,731 INFO L78 Accepts]: Start accepts. Automaton has 2524 states and 4521 transitions. Word has length 102 [2023-12-16 07:37:16,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:16,732 INFO L495 AbstractCegarLoop]: Abstraction has 2524 states and 4521 transitions. [2023-12-16 07:37:16,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:16,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 4521 transitions. [2023-12-16 07:37:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:16,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:16,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:16,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:16,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:16,955 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:16,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1672040771, now seen corresponding path program 1 times [2023-12-16 07:37:16,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:16,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408020374] [2023-12-16 07:37:16,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:16,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:16,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:16,957 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:16,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 07:37:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:17,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:17,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:17,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:17,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:17,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408020374] [2023-12-16 07:37:17,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408020374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:17,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:17,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:17,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735138671] [2023-12-16 07:37:17,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:17,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:17,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:17,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:17,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:17,100 INFO L87 Difference]: Start difference. First operand 2524 states and 4521 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:17,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:17,501 INFO L93 Difference]: Finished difference Result 2962 states and 5145 transitions. [2023-12-16 07:37:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:17,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:17,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:17,526 INFO L225 Difference]: With dead ends: 2962 [2023-12-16 07:37:17,526 INFO L226 Difference]: Without dead ends: 2571 [2023-12-16 07:37:17,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:17,528 INFO L413 NwaCegarLoop]: 4142 mSDtfsCounter, 4396 mSDsluCounter, 8206 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4410 SdHoareTripleChecker+Valid, 12348 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:17,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4410 Valid, 12348 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:17,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2023-12-16 07:37:17,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2571. [2023-12-16 07:37:17,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2526 states have (on average 1.7909738717339667) internal successors, (4524), 2529 states have internal predecessors, (4524), 27 states have call successors, (27), 17 states have call predecessors, (27), 16 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 07:37:17,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 4576 transitions. [2023-12-16 07:37:17,574 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 4576 transitions. Word has length 102 [2023-12-16 07:37:17,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:17,574 INFO L495 AbstractCegarLoop]: Abstraction has 2571 states and 4576 transitions. [2023-12-16 07:37:17,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:17,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 4576 transitions. [2023-12-16 07:37:17,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:17,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:17,575 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] [2023-12-16 07:37:17,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:17,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:17,779 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:17,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:17,780 INFO L85 PathProgramCache]: Analyzing trace with hash -2030687460, now seen corresponding path program 1 times [2023-12-16 07:37:17,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:17,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276080421] [2023-12-16 07:37:17,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:17,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:17,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:17,781 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:17,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 07:37:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:17,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:17,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:17,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:17,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:17,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276080421] [2023-12-16 07:37:17,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276080421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:17,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:17,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:17,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041415673] [2023-12-16 07:37:17,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:17,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:17,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:17,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:17,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:17,918 INFO L87 Difference]: Start difference. First operand 2571 states and 4576 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:18,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:18,248 INFO L93 Difference]: Finished difference Result 3056 states and 5255 transitions. [2023-12-16 07:37:18,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:18,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:18,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:18,253 INFO L225 Difference]: With dead ends: 3056 [2023-12-16 07:37:18,253 INFO L226 Difference]: Without dead ends: 2618 [2023-12-16 07:37:18,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:37:18,255 INFO L413 NwaCegarLoop]: 4139 mSDtfsCounter, 4389 mSDsluCounter, 8202 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4403 SdHoareTripleChecker+Valid, 12341 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:18,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4403 Valid, 12341 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:18,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2023-12-16 07:37:18,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 2618. [2023-12-16 07:37:18,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2618 states, 2570 states have (on average 1.7801556420233462) internal successors, (4575), 2573 states have internal predecessors, (4575), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:37:18,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2618 states to 2618 states and 4629 transitions. [2023-12-16 07:37:18,303 INFO L78 Accepts]: Start accepts. Automaton has 2618 states and 4629 transitions. Word has length 102 [2023-12-16 07:37:18,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:18,303 INFO L495 AbstractCegarLoop]: Abstraction has 2618 states and 4629 transitions. [2023-12-16 07:37:18,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2618 states and 4629 transitions. [2023-12-16 07:37:18,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:18,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:18,304 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] [2023-12-16 07:37:18,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:18,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:18,508 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:18,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:18,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1462558940, now seen corresponding path program 1 times [2023-12-16 07:37:18,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:18,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088874260] [2023-12-16 07:37:18,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:18,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:18,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:18,511 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:18,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 07:37:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:18,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:18,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:18,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:18,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:18,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088874260] [2023-12-16 07:37:18,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088874260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:18,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:18,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:18,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621435058] [2023-12-16 07:37:18,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:18,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:18,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:18,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:18,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:18,636 INFO L87 Difference]: Start difference. First operand 2618 states and 4629 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:18,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:18,796 INFO L93 Difference]: Finished difference Result 3142 states and 5349 transitions. [2023-12-16 07:37:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:18,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:18,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:18,803 INFO L225 Difference]: With dead ends: 3142 [2023-12-16 07:37:18,803 INFO L226 Difference]: Without dead ends: 2658 [2023-12-16 07:37:18,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:18,805 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 56 mSDsluCounter, 8462 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 12698 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:18,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 12698 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:37:18,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2023-12-16 07:37:18,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2620. [2023-12-16 07:37:18,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2620 states, 2572 states have (on average 1.7772161741835149) internal successors, (4571), 2575 states have internal predecessors, (4571), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:37:18,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 4625 transitions. [2023-12-16 07:37:18,949 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 4625 transitions. Word has length 102 [2023-12-16 07:37:18,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:18,963 INFO L495 AbstractCegarLoop]: Abstraction has 2620 states and 4625 transitions. [2023-12-16 07:37:18,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:18,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 4625 transitions. [2023-12-16 07:37:18,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:18,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:18,964 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] [2023-12-16 07:37:18,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:19,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:19,168 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:19,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:19,169 INFO L85 PathProgramCache]: Analyzing trace with hash 730591514, now seen corresponding path program 1 times [2023-12-16 07:37:19,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:19,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319628839] [2023-12-16 07:37:19,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:19,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:19,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:19,170 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:19,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 07:37:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:19,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:19,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:19,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:19,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:19,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319628839] [2023-12-16 07:37:19,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319628839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:19,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:19,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:19,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578204645] [2023-12-16 07:37:19,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:19,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:19,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:19,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:19,266 INFO L87 Difference]: Start difference. First operand 2620 states and 4625 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:19,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:19,361 INFO L93 Difference]: Finished difference Result 3344 states and 5610 transitions. [2023-12-16 07:37:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:19,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:19,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:19,367 INFO L225 Difference]: With dead ends: 3344 [2023-12-16 07:37:19,367 INFO L226 Difference]: Without dead ends: 2858 [2023-12-16 07:37:19,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:19,370 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 47 mSDsluCounter, 8467 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 12703 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:19,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 12703 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:19,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2023-12-16 07:37:19,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2634. [2023-12-16 07:37:19,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2634 states, 2586 states have (on average 1.7730085073472543) internal successors, (4585), 2589 states have internal predecessors, (4585), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:37:19,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2634 states to 2634 states and 4639 transitions. [2023-12-16 07:37:19,423 INFO L78 Accepts]: Start accepts. Automaton has 2634 states and 4639 transitions. Word has length 102 [2023-12-16 07:37:19,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:19,423 INFO L495 AbstractCegarLoop]: Abstraction has 2634 states and 4639 transitions. [2023-12-16 07:37:19,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2634 states and 4639 transitions. [2023-12-16 07:37:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:19,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:19,424 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] [2023-12-16 07:37:19,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:19,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:19,629 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:19,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:19,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1602801124, now seen corresponding path program 1 times [2023-12-16 07:37:19,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:19,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684614081] [2023-12-16 07:37:19,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:19,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:19,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:19,631 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:19,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 07:37:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:19,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:19,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:19,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:19,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:19,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684614081] [2023-12-16 07:37:19,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684614081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:19,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:19,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:19,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207741735] [2023-12-16 07:37:19,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:19,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:19,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:19,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:19,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:19,732 INFO L87 Difference]: Start difference. First operand 2634 states and 4639 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:19,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:19,823 INFO L93 Difference]: Finished difference Result 3162 states and 5352 transitions. [2023-12-16 07:37:19,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:19,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:19,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:19,828 INFO L225 Difference]: With dead ends: 3162 [2023-12-16 07:37:19,828 INFO L226 Difference]: Without dead ends: 2662 [2023-12-16 07:37:19,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:19,830 INFO L413 NwaCegarLoop]: 4237 mSDtfsCounter, 38 mSDsluCounter, 8465 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 12702 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:19,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 12702 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:19,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2023-12-16 07:37:19,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2636. [2023-12-16 07:37:19,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2588 states have (on average 1.7700927357032457) internal successors, (4581), 2591 states have internal predecessors, (4581), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:37:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4635 transitions. [2023-12-16 07:37:19,877 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4635 transitions. Word has length 102 [2023-12-16 07:37:19,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:19,878 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4635 transitions. [2023-12-16 07:37:19,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:19,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4635 transitions. [2023-12-16 07:37:19,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:19,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:19,879 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] [2023-12-16 07:37:19,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:20,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:20,083 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:20,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:20,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1562126374, now seen corresponding path program 1 times [2023-12-16 07:37:20,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:20,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706305650] [2023-12-16 07:37:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:20,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:20,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:20,085 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:20,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 07:37:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:20,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:20,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:20,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:20,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:20,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:20,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706305650] [2023-12-16 07:37:20,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [706305650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:20,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:20,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:20,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605800641] [2023-12-16 07:37:20,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:20,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:20,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:20,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:20,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:20,185 INFO L87 Difference]: Start difference. First operand 2636 states and 4635 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:20,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:20,276 INFO L93 Difference]: Finished difference Result 3160 states and 5336 transitions. [2023-12-16 07:37:20,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:20,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:20,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:20,281 INFO L225 Difference]: With dead ends: 3160 [2023-12-16 07:37:20,281 INFO L226 Difference]: Without dead ends: 2658 [2023-12-16 07:37:20,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:20,283 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 29 mSDsluCounter, 8464 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12700 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:20,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12700 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:20,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2023-12-16 07:37:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2638. [2023-12-16 07:37:20,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 2590 states have (on average 1.7671814671814672) internal successors, (4577), 2593 states have internal predecessors, (4577), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:37:20,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 4631 transitions. [2023-12-16 07:37:20,325 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 4631 transitions. Word has length 102 [2023-12-16 07:37:20,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:20,325 INFO L495 AbstractCegarLoop]: Abstraction has 2638 states and 4631 transitions. [2023-12-16 07:37:20,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:20,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 4631 transitions. [2023-12-16 07:37:20,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:20,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:20,326 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] [2023-12-16 07:37:20,352 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 (18)] Ended with exit code 0 [2023-12-16 07:37:20,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:20,537 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:20,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:20,537 INFO L85 PathProgramCache]: Analyzing trace with hash 704254812, now seen corresponding path program 1 times [2023-12-16 07:37:20,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:20,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855847373] [2023-12-16 07:37:20,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:20,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:20,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:20,539 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:20,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 07:37:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:20,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:20,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:20,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:20,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:20,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855847373] [2023-12-16 07:37:20,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855847373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:20,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:20,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:20,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129147323] [2023-12-16 07:37:20,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:20,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:20,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:20,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:20,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:20,649 INFO L87 Difference]: Start difference. First operand 2638 states and 4631 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:20,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:20,740 INFO L93 Difference]: Finished difference Result 3152 states and 5312 transitions. [2023-12-16 07:37:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:20,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:20,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:20,745 INFO L225 Difference]: With dead ends: 3152 [2023-12-16 07:37:20,745 INFO L226 Difference]: Without dead ends: 2648 [2023-12-16 07:37:20,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:20,747 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 11 mSDsluCounter, 8466 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12702 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:20,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12702 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:20,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2023-12-16 07:37:20,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2640. [2023-12-16 07:37:20,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2592 states have (on average 1.7642746913580247) internal successors, (4573), 2595 states have internal predecessors, (4573), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:37:20,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 4627 transitions. [2023-12-16 07:37:20,873 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 4627 transitions. Word has length 102 [2023-12-16 07:37:20,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:20,874 INFO L495 AbstractCegarLoop]: Abstraction has 2640 states and 4627 transitions. [2023-12-16 07:37:20,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:20,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 4627 transitions. [2023-12-16 07:37:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:20,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:20,876 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] [2023-12-16 07:37:20,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:21,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:21,080 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:21,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:21,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1127901534, now seen corresponding path program 1 times [2023-12-16 07:37:21,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:21,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128582728] [2023-12-16 07:37:21,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:21,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:21,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:21,082 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:21,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 07:37:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:21,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:21,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:21,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:21,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:21,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128582728] [2023-12-16 07:37:21,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128582728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:21,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:21,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:21,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651680260] [2023-12-16 07:37:21,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:21,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:21,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:21,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:21,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:21,186 INFO L87 Difference]: Start difference. First operand 2640 states and 4627 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:21,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:21,276 INFO L93 Difference]: Finished difference Result 3150 states and 5296 transitions. [2023-12-16 07:37:21,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:21,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:21,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:21,281 INFO L225 Difference]: With dead ends: 3150 [2023-12-16 07:37:21,281 INFO L226 Difference]: Without dead ends: 2644 [2023-12-16 07:37:21,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:21,282 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 2 mSDsluCounter, 8467 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12703 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:21,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12703 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:21,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2023-12-16 07:37:21,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2642. [2023-12-16 07:37:21,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 2594 states have (on average 1.761372397841172) internal successors, (4569), 2597 states have internal predecessors, (4569), 28 states have call successors, (28), 19 states have call predecessors, (28), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:37:21,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 4623 transitions. [2023-12-16 07:37:21,325 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 4623 transitions. Word has length 102 [2023-12-16 07:37:21,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:21,325 INFO L495 AbstractCegarLoop]: Abstraction has 2642 states and 4623 transitions. [2023-12-16 07:37:21,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:21,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 4623 transitions. [2023-12-16 07:37:21,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:21,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:21,326 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] [2023-12-16 07:37:21,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:21,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:21,530 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:21,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:21,531 INFO L85 PathProgramCache]: Analyzing trace with hash 733534748, now seen corresponding path program 1 times [2023-12-16 07:37:21,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:21,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716797563] [2023-12-16 07:37:21,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:21,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:21,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:21,532 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:21,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 07:37:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:21,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:37:21,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:21,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:21,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:21,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716797563] [2023-12-16 07:37:21,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716797563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:21,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:21,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:21,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985134623] [2023-12-16 07:37:21,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:21,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:21,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:21,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:21,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:21,734 INFO L87 Difference]: Start difference. First operand 2642 states and 4623 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:22,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:22,257 INFO L93 Difference]: Finished difference Result 3685 states and 5940 transitions. [2023-12-16 07:37:22,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:37:22,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:22,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:22,263 INFO L225 Difference]: With dead ends: 3685 [2023-12-16 07:37:22,263 INFO L226 Difference]: Without dead ends: 3176 [2023-12-16 07:37:22,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:37:22,265 INFO L413 NwaCegarLoop]: 4159 mSDtfsCounter, 4402 mSDsluCounter, 8398 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4415 SdHoareTripleChecker+Valid, 12557 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:22,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4415 Valid, 12557 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:37:22,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2023-12-16 07:37:22,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 3157. [2023-12-16 07:37:22,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 3069 states have (on average 1.685565330726621) internal successors, (5173), 3073 states have internal predecessors, (5173), 49 states have call successors, (49), 37 states have call predecessors, (49), 37 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:37:22,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 5270 transitions. [2023-12-16 07:37:22,335 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 5270 transitions. Word has length 102 [2023-12-16 07:37:22,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:22,335 INFO L495 AbstractCegarLoop]: Abstraction has 3157 states and 5270 transitions. [2023-12-16 07:37:22,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:22,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 5270 transitions. [2023-12-16 07:37:22,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:22,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:22,336 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] [2023-12-16 07:37:22,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:22,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:22,540 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:22,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:22,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1008294362, now seen corresponding path program 1 times [2023-12-16 07:37:22,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:22,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886242278] [2023-12-16 07:37:22,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:22,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:22,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:22,542 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:22,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 07:37:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:22,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:37:22,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:22,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:22,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:22,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886242278] [2023-12-16 07:37:22,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886242278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:22,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:22,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:22,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677873886] [2023-12-16 07:37:22,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:22,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:22,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:22,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:22,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:22,771 INFO L87 Difference]: Start difference. First operand 3157 states and 5270 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:23,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:23,261 INFO L93 Difference]: Finished difference Result 4313 states and 6745 transitions. [2023-12-16 07:37:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:37:23,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-16 07:37:23,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:23,266 INFO L225 Difference]: With dead ends: 4313 [2023-12-16 07:37:23,266 INFO L226 Difference]: Without dead ends: 3289 [2023-12-16 07:37:23,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:37:23,268 INFO L413 NwaCegarLoop]: 4137 mSDtfsCounter, 4369 mSDsluCounter, 8198 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4382 SdHoareTripleChecker+Valid, 12335 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:23,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4382 Valid, 12335 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:23,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2023-12-16 07:37:23,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3221. [2023-12-16 07:37:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3221 states, 3131 states have (on average 1.6671989779623124) internal successors, (5220), 3135 states have internal predecessors, (5220), 49 states have call successors, (49), 39 states have call predecessors, (49), 39 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:37:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 5317 transitions. [2023-12-16 07:37:23,332 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 5317 transitions. Word has length 102 [2023-12-16 07:37:23,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:23,332 INFO L495 AbstractCegarLoop]: Abstraction has 3221 states and 5317 transitions. [2023-12-16 07:37:23,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:23,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 5317 transitions. [2023-12-16 07:37:23,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 07:37:23,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:23,333 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] [2023-12-16 07:37:23,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:23,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:23,537 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:23,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:23,538 INFO L85 PathProgramCache]: Analyzing trace with hash 874280856, now seen corresponding path program 1 times [2023-12-16 07:37:23,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:23,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748148650] [2023-12-16 07:37:23,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:23,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:23,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:23,540 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:23,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 07:37:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:23,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:23,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:23,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:23,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:23,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748148650] [2023-12-16 07:37:23,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748148650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:23,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:23,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:37:23,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706006605] [2023-12-16 07:37:23,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:23,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:23,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:23,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:23,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:23,716 INFO L87 Difference]: Start difference. First operand 3221 states and 5317 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:37:23,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:23,846 INFO L93 Difference]: Finished difference Result 5354 states and 7964 transitions. [2023-12-16 07:37:23,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:23,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 102 [2023-12-16 07:37:23,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:23,855 INFO L225 Difference]: With dead ends: 5354 [2023-12-16 07:37:23,855 INFO L226 Difference]: Without dead ends: 4267 [2023-12-16 07:37:23,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:23,860 INFO L413 NwaCegarLoop]: 4272 mSDtfsCounter, 4139 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4139 SdHoareTripleChecker+Valid, 4519 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:23,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4139 Valid, 4519 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:37:23,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2023-12-16 07:37:23,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 4265. [2023-12-16 07:37:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4265 states, 4093 states have (on average 1.5614463718543856) internal successors, (6391), 4100 states have internal predecessors, (6391), 92 states have call successors, (92), 77 states have call predecessors, (92), 78 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2023-12-16 07:37:23,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4265 states to 4265 states and 6575 transitions. [2023-12-16 07:37:23,967 INFO L78 Accepts]: Start accepts. Automaton has 4265 states and 6575 transitions. Word has length 102 [2023-12-16 07:37:23,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:23,967 INFO L495 AbstractCegarLoop]: Abstraction has 4265 states and 6575 transitions. [2023-12-16 07:37:23,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:37:23,967 INFO L276 IsEmpty]: Start isEmpty. Operand 4265 states and 6575 transitions. [2023-12-16 07:37:23,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-16 07:37:23,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:23,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:23,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:24,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:24,174 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:24,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:24,174 INFO L85 PathProgramCache]: Analyzing trace with hash -305904691, now seen corresponding path program 1 times [2023-12-16 07:37:24,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:24,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270808189] [2023-12-16 07:37:24,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:24,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:24,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:24,176 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:24,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 07:37:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:24,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:24,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:37:24,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:24,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:24,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270808189] [2023-12-16 07:37:24,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270808189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:24,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:24,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:24,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33917034] [2023-12-16 07:37:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:24,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:24,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:24,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:24,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:24,431 INFO L87 Difference]: Start difference. First operand 4265 states and 6575 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:24,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:24,903 INFO L93 Difference]: Finished difference Result 8428 states and 11649 transitions. [2023-12-16 07:37:24,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:24,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 164 [2023-12-16 07:37:24,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:24,913 INFO L225 Difference]: With dead ends: 8428 [2023-12-16 07:37:24,913 INFO L226 Difference]: Without dead ends: 6298 [2023-12-16 07:37:24,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:24,917 INFO L413 NwaCegarLoop]: 4292 mSDtfsCounter, 4328 mSDsluCounter, 4399 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4333 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:24,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4333 Valid, 8691 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:37:24,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6298 states. [2023-12-16 07:37:25,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6298 to 6294. [2023-12-16 07:37:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6294 states, 5963 states have (on average 1.4531276203253396) internal successors, (8665), 5979 states have internal predecessors, (8665), 173 states have call successors, (173), 145 states have call predecessors, (173), 156 states have return successors, (195), 171 states have call predecessors, (195), 171 states have call successors, (195) [2023-12-16 07:37:25,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6294 states to 6294 states and 9033 transitions. [2023-12-16 07:37:25,099 INFO L78 Accepts]: Start accepts. Automaton has 6294 states and 9033 transitions. Word has length 164 [2023-12-16 07:37:25,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:25,099 INFO L495 AbstractCegarLoop]: Abstraction has 6294 states and 9033 transitions. [2023-12-16 07:37:25,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 6294 states and 9033 transitions. [2023-12-16 07:37:25,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-16 07:37:25,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:25,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:25,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:25,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:25,311 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:25,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:25,311 INFO L85 PathProgramCache]: Analyzing trace with hash 38923471, now seen corresponding path program 1 times [2023-12-16 07:37:25,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:25,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463663551] [2023-12-16 07:37:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:25,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:25,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:25,313 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:25,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 07:37:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:25,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:25,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:37:25,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:25,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:25,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463663551] [2023-12-16 07:37:25,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463663551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:25,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:25,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:25,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025428144] [2023-12-16 07:37:25,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:25,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:25,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:25,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:25,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:25,430 INFO L87 Difference]: Start difference. First operand 6294 states and 9033 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:25,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:25,711 INFO L93 Difference]: Finished difference Result 10444 states and 14068 transitions. [2023-12-16 07:37:25,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:25,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 164 [2023-12-16 07:37:25,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:25,722 INFO L225 Difference]: With dead ends: 10444 [2023-12-16 07:37:25,722 INFO L226 Difference]: Without dead ends: 6285 [2023-12-16 07:37:25,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:25,729 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 295 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 8189 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:25,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 8189 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:25,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6285 states. [2023-12-16 07:37:25,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6285 to 6285. [2023-12-16 07:37:25,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6285 states, 5957 states have (on average 1.4527446701359745) internal successors, (8654), 5972 states have internal predecessors, (8654), 170 states have call successors, (170), 145 states have call predecessors, (170), 156 states have return successors, (192), 168 states have call predecessors, (192), 168 states have call successors, (192) [2023-12-16 07:37:25,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6285 states to 6285 states and 9016 transitions. [2023-12-16 07:37:25,901 INFO L78 Accepts]: Start accepts. Automaton has 6285 states and 9016 transitions. Word has length 164 [2023-12-16 07:37:25,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:25,903 INFO L495 AbstractCegarLoop]: Abstraction has 6285 states and 9016 transitions. [2023-12-16 07:37:25,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:25,903 INFO L276 IsEmpty]: Start isEmpty. Operand 6285 states and 9016 transitions. [2023-12-16 07:37:25,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 07:37:25,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:25,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:25,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:26,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:26,111 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:26,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:26,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1829010136, now seen corresponding path program 1 times [2023-12-16 07:37:26,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:26,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352610429] [2023-12-16 07:37:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:26,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:26,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:26,114 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:26,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 07:37:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:26,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:26,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:37:26,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:26,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:26,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352610429] [2023-12-16 07:37:26,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352610429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:26,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:26,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:26,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7565297] [2023-12-16 07:37:26,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:26,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:26,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:26,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:26,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:26,405 INFO L87 Difference]: Start difference. First operand 6285 states and 9016 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:26,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:26,997 INFO L93 Difference]: Finished difference Result 14245 states and 18680 transitions. [2023-12-16 07:37:26,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:26,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 166 [2023-12-16 07:37:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:27,016 INFO L225 Difference]: With dead ends: 14245 [2023-12-16 07:37:27,016 INFO L226 Difference]: Without dead ends: 10095 [2023-12-16 07:37:27,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:27,027 INFO L413 NwaCegarLoop]: 4276 mSDtfsCounter, 4323 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4328 SdHoareTripleChecker+Valid, 8657 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:27,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4328 Valid, 8657 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:37:27,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10095 states. [2023-12-16 07:37:27,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10095 to 10091. [2023-12-16 07:37:27,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10091 states, 9464 states have (on average 1.3641166525781911) internal successors, (12910), 9496 states have internal predecessors, (12910), 321 states have call successors, (321), 273 states have call predecessors, (321), 304 states have return successors, (387), 323 states have call predecessors, (387), 319 states have call successors, (387) [2023-12-16 07:37:27,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10091 states to 10091 states and 13618 transitions. [2023-12-16 07:37:27,441 INFO L78 Accepts]: Start accepts. Automaton has 10091 states and 13618 transitions. Word has length 166 [2023-12-16 07:37:27,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:27,441 INFO L495 AbstractCegarLoop]: Abstraction has 10091 states and 13618 transitions. [2023-12-16 07:37:27,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:27,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10091 states and 13618 transitions. [2023-12-16 07:37:27,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 07:37:27,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:27,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:27,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:27,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:27,652 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:27,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:27,652 INFO L85 PathProgramCache]: Analyzing trace with hash 270728294, now seen corresponding path program 1 times [2023-12-16 07:37:27,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:27,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204064333] [2023-12-16 07:37:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:27,653 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:27,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:27,654 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:27,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 07:37:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:27,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:27,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:37:27,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:27,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:27,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204064333] [2023-12-16 07:37:27,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204064333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:27,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:27,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:27,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008557796] [2023-12-16 07:37:27,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:27,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:27,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:27,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:27,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:27,780 INFO L87 Difference]: Start difference. First operand 10091 states and 13618 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:28,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:28,184 INFO L93 Difference]: Finished difference Result 18039 states and 23241 transitions. [2023-12-16 07:37:28,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:28,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 166 [2023-12-16 07:37:28,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:28,199 INFO L225 Difference]: With dead ends: 18039 [2023-12-16 07:37:28,199 INFO L226 Difference]: Without dead ends: 10083 [2023-12-16 07:37:28,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:28,212 INFO L413 NwaCegarLoop]: 4231 mSDtfsCounter, 293 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:28,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 8188 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:28,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10083 states. [2023-12-16 07:37:28,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10083 to 10083. [2023-12-16 07:37:28,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10083 states, 9459 states have (on average 1.3638862459033725) internal successors, (12901), 9490 states have internal predecessors, (12901), 318 states have call successors, (318), 273 states have call predecessors, (318), 304 states have return successors, (384), 320 states have call predecessors, (384), 316 states have call successors, (384) [2023-12-16 07:37:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10083 states to 10083 states and 13603 transitions. [2023-12-16 07:37:28,533 INFO L78 Accepts]: Start accepts. Automaton has 10083 states and 13603 transitions. Word has length 166 [2023-12-16 07:37:28,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:28,533 INFO L495 AbstractCegarLoop]: Abstraction has 10083 states and 13603 transitions. [2023-12-16 07:37:28,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:28,534 INFO L276 IsEmpty]: Start isEmpty. Operand 10083 states and 13603 transitions. [2023-12-16 07:37:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-16 07:37:28,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:28,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:28,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:28,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:28,742 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:28,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:28,743 INFO L85 PathProgramCache]: Analyzing trace with hash 2120199821, now seen corresponding path program 1 times [2023-12-16 07:37:28,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:28,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178732869] [2023-12-16 07:37:28,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:28,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:28,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:28,744 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:28,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 07:37:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:28,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:28,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:28,999 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:37:29,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:29,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:29,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178732869] [2023-12-16 07:37:29,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178732869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:29,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:29,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:29,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618792074] [2023-12-16 07:37:29,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:29,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:29,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:29,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:29,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:29,001 INFO L87 Difference]: Start difference. First operand 10083 states and 13603 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:29,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:29,863 INFO L93 Difference]: Finished difference Result 25294 states and 32029 transitions. [2023-12-16 07:37:29,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:29,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 168 [2023-12-16 07:37:29,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:29,890 INFO L225 Difference]: With dead ends: 25294 [2023-12-16 07:37:29,890 INFO L226 Difference]: Without dead ends: 17346 [2023-12-16 07:37:29,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:29,902 INFO L413 NwaCegarLoop]: 4262 mSDtfsCounter, 4316 mSDsluCounter, 4363 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4322 SdHoareTripleChecker+Valid, 8625 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:29,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4322 Valid, 8625 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:37:29,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17346 states. [2023-12-16 07:37:30,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17346 to 17342. [2023-12-16 07:37:30,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17342 states, 16147 states have (on average 1.3009847030408126) internal successors, (21007), 16215 states have internal predecessors, (21007), 601 states have call successors, (601), 513 states have call predecessors, (601), 592 states have return successors, (763), 615 states have call predecessors, (763), 599 states have call successors, (763) [2023-12-16 07:37:30,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17342 states to 17342 states and 22371 transitions. [2023-12-16 07:37:30,513 INFO L78 Accepts]: Start accepts. Automaton has 17342 states and 22371 transitions. Word has length 168 [2023-12-16 07:37:30,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:30,515 INFO L495 AbstractCegarLoop]: Abstraction has 17342 states and 22371 transitions. [2023-12-16 07:37:30,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:30,515 INFO L276 IsEmpty]: Start isEmpty. Operand 17342 states and 22371 transitions. [2023-12-16 07:37:30,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-16 07:37:30,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:30,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:30,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:30,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:30,728 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:30,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:30,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1507385585, now seen corresponding path program 1 times [2023-12-16 07:37:30,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:30,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880764935] [2023-12-16 07:37:30,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:30,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:30,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:30,731 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:30,732 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 (29)] Waiting until timeout for monitored process [2023-12-16 07:37:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:30,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:30,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:37:30,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:30,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:30,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880764935] [2023-12-16 07:37:30,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880764935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:30,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:30,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:30,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422150846] [2023-12-16 07:37:30,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:30,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:30,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:30,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:30,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:30,851 INFO L87 Difference]: Start difference. First operand 17342 states and 22371 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:31,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:31,546 INFO L93 Difference]: Finished difference Result 32542 states and 40750 transitions. [2023-12-16 07:37:31,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:31,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 168 [2023-12-16 07:37:31,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:31,588 INFO L225 Difference]: With dead ends: 32542 [2023-12-16 07:37:31,588 INFO L226 Difference]: Without dead ends: 17335 [2023-12-16 07:37:31,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:31,616 INFO L413 NwaCegarLoop]: 4230 mSDtfsCounter, 291 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 8187 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:31,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 8187 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:31,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17335 states. [2023-12-16 07:37:32,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17335 to 17335. [2023-12-16 07:37:32,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17335 states, 16143 states have (on average 1.3008734435978442) internal successors, (21000), 16210 states have internal predecessors, (21000), 598 states have call successors, (598), 513 states have call predecessors, (598), 592 states have return successors, (760), 612 states have call predecessors, (760), 596 states have call successors, (760) [2023-12-16 07:37:32,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17335 states to 17335 states and 22358 transitions. [2023-12-16 07:37:32,352 INFO L78 Accepts]: Start accepts. Automaton has 17335 states and 22358 transitions. Word has length 168 [2023-12-16 07:37:32,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:32,352 INFO L495 AbstractCegarLoop]: Abstraction has 17335 states and 22358 transitions. [2023-12-16 07:37:32,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 17335 states and 22358 transitions. [2023-12-16 07:37:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-16 07:37:32,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:32,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:32,385 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 (29)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:32,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:32,585 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:32,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:32,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2112045400, now seen corresponding path program 1 times [2023-12-16 07:37:32,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:32,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960858486] [2023-12-16 07:37:32,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:32,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:32,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:32,588 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:32,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 07:37:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:32,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:32,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:37:32,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:32,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:32,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960858486] [2023-12-16 07:37:32,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960858486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:32,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:32,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:32,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272303820] [2023-12-16 07:37:32,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:32,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:32,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:32,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:32,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:32,855 INFO L87 Difference]: Start difference. First operand 17335 states and 22358 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:34,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:34,191 INFO L93 Difference]: Finished difference Result 49925 states and 61551 transitions. [2023-12-16 07:37:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:34,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 170 [2023-12-16 07:37:34,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:34,264 INFO L225 Difference]: With dead ends: 49925 [2023-12-16 07:37:34,265 INFO L226 Difference]: Without dead ends: 34725 [2023-12-16 07:37:34,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:34,291 INFO L413 NwaCegarLoop]: 4258 mSDtfsCounter, 4319 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4325 SdHoareTripleChecker+Valid, 8607 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:34,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4325 Valid, 8607 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:34,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34725 states. [2023-12-16 07:37:35,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34725 to 34081. [2023-12-16 07:37:35,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34081 states, 31446 states have (on average 1.2515423265280163) internal successors, (39356), 31786 states have internal predecessors, (39356), 1129 states have call successors, (1129), 961 states have call predecessors, (1129), 1504 states have return successors, (1868), 1335 states have call predecessors, (1868), 1127 states have call successors, (1868) [2023-12-16 07:37:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34081 states to 34081 states and 42353 transitions. [2023-12-16 07:37:35,687 INFO L78 Accepts]: Start accepts. Automaton has 34081 states and 42353 transitions. Word has length 170 [2023-12-16 07:37:35,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:35,687 INFO L495 AbstractCegarLoop]: Abstraction has 34081 states and 42353 transitions. [2023-12-16 07:37:35,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:35,687 INFO L276 IsEmpty]: Start isEmpty. Operand 34081 states and 42353 transitions. [2023-12-16 07:37:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-16 07:37:35,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:35,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:35,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:35,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:35,905 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:35,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:35,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1396924006, now seen corresponding path program 1 times [2023-12-16 07:37:35,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:35,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171046149] [2023-12-16 07:37:35,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:35,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:35,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:35,907 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:35,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 07:37:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:36,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:36,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:36,023 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:37:36,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:36,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:36,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171046149] [2023-12-16 07:37:36,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171046149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:36,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:36,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:36,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948499660] [2023-12-16 07:37:36,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:36,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:36,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:36,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:36,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:36,025 INFO L87 Difference]: Start difference. First operand 34081 states and 42353 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:37,208 INFO L93 Difference]: Finished difference Result 66022 states and 80718 transitions. [2023-12-16 07:37:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:37,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 170 [2023-12-16 07:37:37,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:37,263 INFO L225 Difference]: With dead ends: 66022 [2023-12-16 07:37:37,263 INFO L226 Difference]: Without dead ends: 34075 [2023-12-16 07:37:37,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:37,290 INFO L413 NwaCegarLoop]: 4229 mSDtfsCounter, 289 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 8186 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:37,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 8186 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:37,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34075 states. [2023-12-16 07:37:38,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34075 to 34075. [2023-12-16 07:37:38,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34075 states, 31443 states have (on average 1.2515027192061827) internal successors, (39351), 31782 states have internal predecessors, (39351), 1126 states have call successors, (1126), 961 states have call predecessors, (1126), 1504 states have return successors, (1864), 1332 states have call predecessors, (1864), 1124 states have call successors, (1864) [2023-12-16 07:37:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34075 states to 34075 states and 42341 transitions. [2023-12-16 07:37:38,883 INFO L78 Accepts]: Start accepts. Automaton has 34075 states and 42341 transitions. Word has length 170 [2023-12-16 07:37:38,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:38,883 INFO L495 AbstractCegarLoop]: Abstraction has 34075 states and 42341 transitions. [2023-12-16 07:37:38,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 34075 states and 42341 transitions. [2023-12-16 07:37:38,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 07:37:38,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:38,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:38,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:39,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:39,098 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:39,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:39,099 INFO L85 PathProgramCache]: Analyzing trace with hash 441987405, now seen corresponding path program 1 times [2023-12-16 07:37:39,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:39,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808478807] [2023-12-16 07:37:39,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:39,099 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:39,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:39,100 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:39,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-16 07:37:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:39,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:39,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:37:39,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:39,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:39,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808478807] [2023-12-16 07:37:39,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808478807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:39,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:39,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:39,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878122891] [2023-12-16 07:37:39,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:39,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:39,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:39,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:39,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:39,341 INFO L87 Difference]: Start difference. First operand 34075 states and 42341 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:41,824 INFO L93 Difference]: Finished difference Result 94143 states and 114379 transitions. [2023-12-16 07:37:41,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:41,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 172 [2023-12-16 07:37:41,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:41,941 INFO L225 Difference]: With dead ends: 94143 [2023-12-16 07:37:41,941 INFO L226 Difference]: Without dead ends: 62203 [2023-12-16 07:37:41,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:41,969 INFO L413 NwaCegarLoop]: 4161 mSDtfsCounter, 4316 mSDsluCounter, 4268 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4322 SdHoareTripleChecker+Valid, 8429 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:41,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4322 Valid, 8429 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:42,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62203 states. [2023-12-16 07:37:45,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62203 to 62199. [2023-12-16 07:37:45,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62199 states, 57199 states have (on average 1.2274165632266298) internal successors, (70207), 57874 states have internal predecessors, (70207), 2118 states have call successors, (2118), 1793 states have call predecessors, (2118), 2880 states have return successors, (3608), 2532 states have call predecessors, (3608), 2116 states have call successors, (3608) [2023-12-16 07:37:45,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62199 states to 62199 states and 75933 transitions. [2023-12-16 07:37:45,308 INFO L78 Accepts]: Start accepts. Automaton has 62199 states and 75933 transitions. Word has length 172 [2023-12-16 07:37:45,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:45,308 INFO L495 AbstractCegarLoop]: Abstraction has 62199 states and 75933 transitions. [2023-12-16 07:37:45,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:45,309 INFO L276 IsEmpty]: Start isEmpty. Operand 62199 states and 75933 transitions. [2023-12-16 07:37:45,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 07:37:45,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:45,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:45,337 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 [2023-12-16 07:37:45,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:45,536 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:45,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:45,537 INFO L85 PathProgramCache]: Analyzing trace with hash 579190824, now seen corresponding path program 1 times [2023-12-16 07:37:45,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:45,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559294535] [2023-12-16 07:37:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:45,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:45,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:45,539 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:45,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-16 07:37:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:45,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:45,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:37:45,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:45,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:45,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [559294535] [2023-12-16 07:37:45,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [559294535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:45,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:45,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:45,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266619842] [2023-12-16 07:37:45,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:45,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:45,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:45,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:45,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:45,811 INFO L87 Difference]: Start difference. First operand 62199 states and 75933 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:50,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:50,518 INFO L93 Difference]: Finished difference Result 174715 states and 210658 transitions. [2023-12-16 07:37:50,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:50,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 174 [2023-12-16 07:37:50,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:50,842 INFO L225 Difference]: With dead ends: 174715 [2023-12-16 07:37:50,842 INFO L226 Difference]: Without dead ends: 114651 [2023-12-16 07:37:50,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:50,894 INFO L413 NwaCegarLoop]: 4221 mSDtfsCounter, 4296 mSDsluCounter, 4310 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4302 SdHoareTripleChecker+Valid, 8531 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:50,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4302 Valid, 8531 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:50,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114651 states. [2023-12-16 07:37:55,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114651 to 114647. [2023-12-16 07:37:55,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114647 states, 105100 states have (on average 1.2135490009514749) internal successors, (127544), 106480 states have internal predecessors, (127544), 3977 states have call successors, (3977), 3329 states have call predecessors, (3977), 5568 states have return successors, (7035), 4839 states have call predecessors, (7035), 3975 states have call successors, (7035) [2023-12-16 07:37:56,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114647 states to 114647 states and 138556 transitions. [2023-12-16 07:37:56,222 INFO L78 Accepts]: Start accepts. Automaton has 114647 states and 138556 transitions. Word has length 174 [2023-12-16 07:37:56,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:56,222 INFO L495 AbstractCegarLoop]: Abstraction has 114647 states and 138556 transitions. [2023-12-16 07:37:56,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 114647 states and 138556 transitions. [2023-12-16 07:37:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 07:37:56,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:56,256 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:56,263 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 [2023-12-16 07:37:56,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:56,463 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:56,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:56,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1149462630, now seen corresponding path program 1 times [2023-12-16 07:37:56,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:56,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585341754] [2023-12-16 07:37:56,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:56,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:56,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:56,466 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:37:56,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-16 07:37:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:56,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:56,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:37:56,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:56,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:56,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585341754] [2023-12-16 07:37:56,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585341754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:56,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:56,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:56,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701098020] [2023-12-16 07:37:56,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:56,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:56,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:56,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:56,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:56,585 INFO L87 Difference]: Start difference. First operand 114647 states and 138556 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Received shutdown request... [2023-12-16 07:37:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:59,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:59,503 INFO L413 NwaCegarLoop]: 4227 mSDtfsCounter, 285 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 8184 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:59,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 8184 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:59,505 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:37:59,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-16 07:37:59,518 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:37:59,518 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:37:59,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:59,711 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (114647states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (141536 states constructed, input type IntersectNwa). [2023-12-16 07:37:59,712 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:37:59,715 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:59,717 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:37:59,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:37:59 BoogieIcfgContainer [2023-12-16 07:37:59,718 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:37:59,718 INFO L158 Benchmark]: Toolchain (without parser) took 63329.38ms. Allocated memory was 330.3MB in the beginning and 6.8GB in the end (delta: 6.5GB). Free memory was 286.6MB in the beginning and 5.0GB in the end (delta: -4.7GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 07:37:59,718 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 187.7MB. Free memory was 138.1MB in the beginning and 137.9MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:37:59,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2385.02ms. Allocated memory is still 330.3MB. Free memory was 286.6MB in the beginning and 121.4MB in the end (delta: 165.2MB). Peak memory consumption was 165.2MB. Max. memory is 8.0GB. [2023-12-16 07:37:59,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 390.93ms. Allocated memory was 330.3MB in the beginning and 525.3MB in the end (delta: 195.0MB). Free memory was 121.4MB in the beginning and 369.4MB in the end (delta: -248.0MB). Peak memory consumption was 66.6MB. Max. memory is 8.0GB. [2023-12-16 07:37:59,719 INFO L158 Benchmark]: Boogie Preprocessor took 561.17ms. Allocated memory is still 525.3MB. Free memory was 369.4MB in the beginning and 352.1MB in the end (delta: 17.3MB). Peak memory consumption was 64.5MB. Max. memory is 8.0GB. [2023-12-16 07:37:59,719 INFO L158 Benchmark]: RCFGBuilder took 8167.95ms. Allocated memory was 525.3MB in the beginning and 2.7GB in the end (delta: 2.2GB). Free memory was 352.1MB in the beginning and 2.4GB in the end (delta: -2.0GB). Peak memory consumption was 647.5MB. Max. memory is 8.0GB. [2023-12-16 07:37:59,719 INFO L158 Benchmark]: TraceAbstraction took 51818.01ms. Allocated memory was 2.7GB in the beginning and 6.8GB in the end (delta: 4.1GB). Free memory was 2.4GB in the beginning and 5.0GB in the end (delta: -2.6GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 07:37:59,720 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 187.7MB. Free memory was 138.1MB in the beginning and 137.9MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2385.02ms. Allocated memory is still 330.3MB. Free memory was 286.6MB in the beginning and 121.4MB in the end (delta: 165.2MB). Peak memory consumption was 165.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 390.93ms. Allocated memory was 330.3MB in the beginning and 525.3MB in the end (delta: 195.0MB). Free memory was 121.4MB in the beginning and 369.4MB in the end (delta: -248.0MB). Peak memory consumption was 66.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 561.17ms. Allocated memory is still 525.3MB. Free memory was 369.4MB in the beginning and 352.1MB in the end (delta: 17.3MB). Peak memory consumption was 64.5MB. Max. memory is 8.0GB. * RCFGBuilder took 8167.95ms. Allocated memory was 525.3MB in the beginning and 2.7GB in the end (delta: 2.2GB). Free memory was 352.1MB in the beginning and 2.4GB in the end (delta: -2.0GB). Peak memory consumption was 647.5MB. Max. memory is 8.0GB. * TraceAbstraction took 51818.01ms. Allocated memory was 2.7GB in the beginning and 6.8GB in the end (delta: 4.1GB). Free memory was 2.4GB in the beginning and 5.0GB in the end (delta: -2.6GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (114647states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (141536 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 11094]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11094). Cancelled while NwaCegarLoop was constructing difference of abstraction (114647states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (141536 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2341 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 51.8s, OverallIterations: 33, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93754 SdHoareTripleChecker+Valid, 6.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93526 mSDsluCounter, 354875 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 216136 mSDsCounter, 749 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7327 IncrementalHoareTripleChecker+Invalid, 8076 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 749 mSolverCounterUnsat, 138739 mSDtfsCounter, 7327 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4095 GetRequests, 4000 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114647occurred in iteration=32, InterpolantAutomatonStates: 138, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.5s AutomataMinimizationTime, 32 MinimizatonAttempts, 1071 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 4100 NumberOfCodeBlocks, 4100 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 4067 ConstructedInterpolants, 0 QuantifiedInterpolants, 7139 SizeOfPredicates, 6 NumberOfNonLiveVariables, 10287 ConjunctsInSsa, 146 ConjunctsInUnsatCore, 33 InterpolantComputations, 33 PerfectInterpolantSequences, 528/528 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown