/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.05.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:36:45,686 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:36:45,773 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 07:36:45,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:36:45,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:36:45,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:36:45,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:36:45,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:36:45,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:36:45,813 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:36:45,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:36:45,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:36:45,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:36:45,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:36:45,815 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:36:45,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:36:45,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:36:45,816 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:36:45,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:36:45,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:36:45,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:36:45,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:36:45,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:36:45,817 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:36:45,818 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:36:45,818 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:36:45,818 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:36:45,818 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:36:45,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:36:45,819 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:36:45,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:36:45,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:36:45,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:36:45,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:36:45,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:36:45,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:36:45,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:36:45,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:36:45,821 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:36:45,821 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:36:45,821 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:36:45,821 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:36:45,821 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:36:45,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:36:45,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:36:45,822 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:36:45,822 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:36:46,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:36:46,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:36:46,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:36:46,076 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:36:46,076 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:36:46,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.05.cil-1.c [2023-12-16 07:36:47,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:36:47,857 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:36:47,858 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.05.cil-1.c [2023-12-16 07:36:47,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33d12c04c/f84d8211b5094e78b572c434b2d36976/FLAGbf9644745 [2023-12-16 07:36:47,933 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33d12c04c/f84d8211b5094e78b572c434b2d36976 [2023-12-16 07:36:47,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:36:47,937 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:36:47,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:36:47,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:36:47,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:36:47,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:36:47" (1/1) ... [2023-12-16 07:36:47,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd187e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:47, skipping insertion in model container [2023-12-16 07:36:47,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:36:47" (1/1) ... [2023-12-16 07:36:48,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:36:49,833 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.05.cil-1.c[380593,380606] [2023-12-16 07:36:49,860 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.05.cil-1.c[383339,383352] [2023-12-16 07:36:50,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:36:50,074 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:36:50,890 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.05.cil-1.c[380593,380606] [2023-12-16 07:36:50,895 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.05.cil-1.c[383339,383352] [2023-12-16 07:36:50,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:36:50,975 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:36:50,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50 WrapperNode [2023-12-16 07:36:50,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:36:50,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:36:50,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:36:50,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:36:50,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:51,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:51,435 INFO L138 Inliner]: procedures = 55, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12785 [2023-12-16 07:36:51,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:36:51,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:36:51,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:36:51,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:36:51,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:51,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:51,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:51,724 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 07:36:51,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:51,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:51,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:51,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:52,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:52,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:52,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:36:52,087 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:36:52,087 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:36:52,087 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:36:52,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (1/1) ... [2023-12-16 07:36:52,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:36:52,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:36:52,117 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 07:36:52,130 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 07:36:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:36:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:36:52,148 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:36:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:36:52,149 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:36:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:36:52,149 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:36:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:36:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:36:52,149 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:36:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:36:52,149 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:36:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:36:52,149 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:36:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:36:52,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:36:52,246 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:36:52,248 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:37:01,631 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:37:01,734 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:37:01,735 INFO L309 CfgBuilder]: Removed 9 assume(true) statements. [2023-12-16 07:37:01,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:37:01 BoogieIcfgContainer [2023-12-16 07:37:01,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:37:01,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:37:01,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:37:01,741 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:37:01,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:36:47" (1/3) ... [2023-12-16 07:37:01,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c5c118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:37:01, skipping insertion in model container [2023-12-16 07:37:01,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:36:50" (2/3) ... [2023-12-16 07:37:01,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c5c118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:37:01, skipping insertion in model container [2023-12-16 07:37:01,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:37:01" (3/3) ... [2023-12-16 07:37:01,743 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.05.cil-1.c [2023-12-16 07:37:01,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:37:01,761 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:37:01,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:37:01,861 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;@39c7287, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:37:01,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:37:01,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 2310 states, 2282 states have (on average 1.8825591586327783) internal successors, (4296), 2285 states have internal predecessors, (4296), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 07:37:01,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:01,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:01,903 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] [2023-12-16 07:37:01,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:01,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:01,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1457270218, now seen corresponding path program 1 times [2023-12-16 07:37:01,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:01,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277485156] [2023-12-16 07:37:01,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:01,928 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 07:37:01,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:01,934 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 07:37:01,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:37:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:02,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:02,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:02,205 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 07:37:02,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:02,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:02,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277485156] [2023-12-16 07:37:02,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277485156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:02,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:02,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:02,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674875858] [2023-12-16 07:37:02,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:02,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:02,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:02,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:02,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:02,257 INFO L87 Difference]: Start difference. First operand has 2310 states, 2282 states have (on average 1.8825591586327783) internal successors, (4296), 2285 states have internal predecessors, (4296), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:02,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:02,448 INFO L93 Difference]: Finished difference Result 4614 states and 8655 transitions. [2023-12-16 07:37:02,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:02,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:02,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:02,472 INFO L225 Difference]: With dead ends: 4614 [2023-12-16 07:37:02,472 INFO L226 Difference]: Without dead ends: 2306 [2023-12-16 07:37:02,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 07:37:02,488 INFO L413 NwaCegarLoop]: 4227 mSDtfsCounter, 285 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 8186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:02,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 8186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:02,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2023-12-16 07:37:02,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2306. [2023-12-16 07:37:02,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2279 states have (on average 1.8473014480035104) internal successors, (4210), 2281 states have internal predecessors, (4210), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 07:37:02,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 4248 transitions. [2023-12-16 07:37:02,646 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 4248 transitions. Word has length 91 [2023-12-16 07:37:02,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:02,647 INFO L495 AbstractCegarLoop]: Abstraction has 2306 states and 4248 transitions. [2023-12-16 07:37:02,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 4248 transitions. [2023-12-16 07:37:02,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:02,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:02,651 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] [2023-12-16 07:37:02,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 07:37:02,855 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 07:37:02,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:02,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:02,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1270939128, now seen corresponding path program 1 times [2023-12-16 07:37:02,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:02,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516842776] [2023-12-16 07:37:02,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:02,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:02,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:02,860 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 07:37:02,863 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 07:37:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:02,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:02,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:03,055 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 07:37:03,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:03,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:03,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516842776] [2023-12-16 07:37:03,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516842776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:03,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:03,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:03,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542096178] [2023-12-16 07:37:03,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:03,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:03,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:03,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:03,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:03,059 INFO L87 Difference]: Start difference. First operand 2306 states and 4248 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:03,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:03,779 INFO L93 Difference]: Finished difference Result 2675 states and 4835 transitions. [2023-12-16 07:37:03,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:37:03,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:03,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:03,794 INFO L225 Difference]: With dead ends: 2675 [2023-12-16 07:37:03,795 INFO L226 Difference]: Without dead ends: 2501 [2023-12-16 07:37:03,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:03,798 INFO L413 NwaCegarLoop]: 4167 mSDtfsCounter, 4483 mSDsluCounter, 8431 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4496 SdHoareTripleChecker+Valid, 12598 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:03,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4496 Valid, 12598 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:37:03,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2023-12-16 07:37:03,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2486. [2023-12-16 07:37:03,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2438 states have (on average 1.8314191960623463) internal successors, (4465), 2441 states have internal predecessors, (4465), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 07:37:03,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 4532 transitions. [2023-12-16 07:37:03,881 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 4532 transitions. Word has length 91 [2023-12-16 07:37:03,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:03,882 INFO L495 AbstractCegarLoop]: Abstraction has 2486 states and 4532 transitions. [2023-12-16 07:37:03,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 4532 transitions. [2023-12-16 07:37:03,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:03,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:03,884 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] [2023-12-16 07:37:03,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:04,088 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 07:37:04,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:04,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:04,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1610759172, now seen corresponding path program 1 times [2023-12-16 07:37:04,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:04,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086750796] [2023-12-16 07:37:04,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:04,091 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 07:37:04,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:04,092 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 07:37:04,110 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 07:37:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:04,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:04,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:04,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:37:04,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:04,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:04,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086750796] [2023-12-16 07:37:04,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086750796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:04,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:04,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:04,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356307123] [2023-12-16 07:37:04,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:04,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:04,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:04,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:04,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:04,306 INFO L87 Difference]: Start difference. First operand 2486 states and 4532 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:04,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:04,719 INFO L93 Difference]: Finished difference Result 2840 states and 5095 transitions. [2023-12-16 07:37:04,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:04,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:04,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:04,732 INFO L225 Difference]: With dead ends: 2840 [2023-12-16 07:37:04,733 INFO L226 Difference]: Without dead ends: 2486 [2023-12-16 07:37:04,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:04,737 INFO L413 NwaCegarLoop]: 4135 mSDtfsCounter, 4331 mSDsluCounter, 8188 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4344 SdHoareTripleChecker+Valid, 12323 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:04,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4344 Valid, 12323 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:04,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2023-12-16 07:37:04,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2486. [2023-12-16 07:37:04,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2438 states have (on average 1.8285479901558654) internal successors, (4458), 2441 states have internal predecessors, (4458), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 07:37:04,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 4525 transitions. [2023-12-16 07:37:04,829 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 4525 transitions. Word has length 91 [2023-12-16 07:37:04,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:04,830 INFO L495 AbstractCegarLoop]: Abstraction has 2486 states and 4525 transitions. [2023-12-16 07:37:04,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:04,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 4525 transitions. [2023-12-16 07:37:04,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:04,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:04,832 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] [2023-12-16 07:37:04,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:05,038 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 07:37:05,038 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:05,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:05,039 INFO L85 PathProgramCache]: Analyzing trace with hash 97398136, now seen corresponding path program 1 times [2023-12-16 07:37:05,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:05,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930785849] [2023-12-16 07:37:05,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:05,040 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 07:37:05,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:05,041 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 07:37:05,042 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 07:37:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:05,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:05,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:05,217 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 07:37:05,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:05,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:05,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930785849] [2023-12-16 07:37:05,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930785849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:05,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:05,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:05,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125595173] [2023-12-16 07:37:05,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:05,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:05,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:05,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:05,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:05,227 INFO L87 Difference]: Start difference. First operand 2486 states and 4525 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:05,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:05,611 INFO L93 Difference]: Finished difference Result 2840 states and 5081 transitions. [2023-12-16 07:37:05,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:05,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:05,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:05,622 INFO L225 Difference]: With dead ends: 2840 [2023-12-16 07:37:05,623 INFO L226 Difference]: Without dead ends: 2486 [2023-12-16 07:37:05,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:05,625 INFO L413 NwaCegarLoop]: 4132 mSDtfsCounter, 4324 mSDsluCounter, 8184 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4337 SdHoareTripleChecker+Valid, 12316 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:05,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4337 Valid, 12316 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:05,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2023-12-16 07:37:05,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2486. [2023-12-16 07:37:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2438 states have (on average 1.8256767842493848) internal successors, (4451), 2441 states have internal predecessors, (4451), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 07:37:05,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 4518 transitions. [2023-12-16 07:37:05,699 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 4518 transitions. Word has length 91 [2023-12-16 07:37:05,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:05,700 INFO L495 AbstractCegarLoop]: Abstraction has 2486 states and 4518 transitions. [2023-12-16 07:37:05,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:05,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 4518 transitions. [2023-12-16 07:37:05,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:05,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:05,702 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] [2023-12-16 07:37:05,711 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 07:37:05,911 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 07:37:05,912 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:05,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:05,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1046660596, now seen corresponding path program 1 times [2023-12-16 07:37:05,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:05,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49782115] [2023-12-16 07:37:05,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:05,913 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 07:37:05,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:05,914 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 07:37:05,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 07:37:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:06,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:06,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:06,092 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 07:37:06,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:06,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:06,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49782115] [2023-12-16 07:37:06,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49782115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:06,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:06,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:06,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618767965] [2023-12-16 07:37:06,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:06,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:06,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:06,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:06,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:06,095 INFO L87 Difference]: Start difference. First operand 2486 states and 4518 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:06,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:06,472 INFO L93 Difference]: Finished difference Result 2840 states and 5067 transitions. [2023-12-16 07:37:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:06,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:06,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:06,484 INFO L225 Difference]: With dead ends: 2840 [2023-12-16 07:37:06,484 INFO L226 Difference]: Without dead ends: 2486 [2023-12-16 07:37:06,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:06,488 INFO L413 NwaCegarLoop]: 4129 mSDtfsCounter, 4318 mSDsluCounter, 8180 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4331 SdHoareTripleChecker+Valid, 12309 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:06,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4331 Valid, 12309 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:06,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2023-12-16 07:37:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2486. [2023-12-16 07:37:06,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2438 states have (on average 1.822805578342904) internal successors, (4444), 2441 states have internal predecessors, (4444), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 07:37:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 4511 transitions. [2023-12-16 07:37:06,566 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 4511 transitions. Word has length 91 [2023-12-16 07:37:06,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:06,567 INFO L495 AbstractCegarLoop]: Abstraction has 2486 states and 4511 transitions. [2023-12-16 07:37:06,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:06,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 4511 transitions. [2023-12-16 07:37:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:06,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:06,568 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] [2023-12-16 07:37:06,578 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 07:37:06,773 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 07:37:06,773 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:06,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:06,774 INFO L85 PathProgramCache]: Analyzing trace with hash -723833352, now seen corresponding path program 1 times [2023-12-16 07:37:06,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:06,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405325709] [2023-12-16 07:37:06,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:06,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:06,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:06,777 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 07:37:06,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:37:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:06,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:06,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:06,933 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 07:37:06,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:06,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:06,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405325709] [2023-12-16 07:37:06,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405325709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:06,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:06,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:06,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784650882] [2023-12-16 07:37:06,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:06,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:06,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:06,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:06,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:06,936 INFO L87 Difference]: Start difference. First operand 2486 states and 4511 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:07,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:07,320 INFO L93 Difference]: Finished difference Result 2840 states and 5053 transitions. [2023-12-16 07:37:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:07,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:07,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:07,332 INFO L225 Difference]: With dead ends: 2840 [2023-12-16 07:37:07,333 INFO L226 Difference]: Without dead ends: 2486 [2023-12-16 07:37:07,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:07,335 INFO L413 NwaCegarLoop]: 4126 mSDtfsCounter, 4312 mSDsluCounter, 8176 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4325 SdHoareTripleChecker+Valid, 12302 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:07,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4325 Valid, 12302 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:07,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2023-12-16 07:37:07,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2486. [2023-12-16 07:37:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2438 states have (on average 1.8199343724364232) internal successors, (4437), 2441 states have internal predecessors, (4437), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 07:37:07,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 4504 transitions. [2023-12-16 07:37:07,410 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 4504 transitions. Word has length 91 [2023-12-16 07:37:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:07,411 INFO L495 AbstractCegarLoop]: Abstraction has 2486 states and 4504 transitions. [2023-12-16 07:37:07,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 4504 transitions. [2023-12-16 07:37:07,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:07,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:07,412 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] [2023-12-16 07:37:07,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:07,617 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 07:37:07,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:07,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:07,620 INFO L85 PathProgramCache]: Analyzing trace with hash -780946060, now seen corresponding path program 1 times [2023-12-16 07:37:07,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:07,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132566678] [2023-12-16 07:37:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:07,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:07,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:07,622 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 07:37:07,627 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 07:37:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:07,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:07,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:07,792 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 07:37:07,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:07,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:07,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132566678] [2023-12-16 07:37:07,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132566678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:07,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:07,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:07,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396440704] [2023-12-16 07:37:07,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:07,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:07,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:07,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:07,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:07,795 INFO L87 Difference]: Start difference. First operand 2486 states and 4504 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:08,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:08,220 INFO L93 Difference]: Finished difference Result 2922 states and 5171 transitions. [2023-12-16 07:37:08,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:08,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:08,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:08,233 INFO L225 Difference]: With dead ends: 2922 [2023-12-16 07:37:08,233 INFO L226 Difference]: Without dead ends: 2568 [2023-12-16 07:37:08,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:08,237 INFO L413 NwaCegarLoop]: 4124 mSDtfsCounter, 4357 mSDsluCounter, 8172 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4370 SdHoareTripleChecker+Valid, 12296 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:08,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4370 Valid, 12296 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:08,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2023-12-16 07:37:08,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 2568. [2023-12-16 07:37:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2514 states have (on average 1.8058870326173428) internal successors, (4540), 2517 states have internal predecessors, (4540), 35 states have call successors, (35), 16 states have call predecessors, (35), 17 states have return successors, (36), 35 states have call predecessors, (36), 35 states have call successors, (36) [2023-12-16 07:37:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 4611 transitions. [2023-12-16 07:37:08,312 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 4611 transitions. Word has length 91 [2023-12-16 07:37:08,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:08,313 INFO L495 AbstractCegarLoop]: Abstraction has 2568 states and 4611 transitions. [2023-12-16 07:37:08,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 4611 transitions. [2023-12-16 07:37:08,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:08,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:08,314 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] [2023-12-16 07:37:08,322 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 07:37:08,519 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 07:37:08,519 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:08,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:08,520 INFO L85 PathProgramCache]: Analyzing trace with hash -719764553, now seen corresponding path program 1 times [2023-12-16 07:37:08,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:08,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868303563] [2023-12-16 07:37:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:08,521 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 07:37:08,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:08,522 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 07:37:08,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 07:37:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:08,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:08,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:08,679 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 07:37:08,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:08,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:08,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868303563] [2023-12-16 07:37:08,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868303563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:08,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:08,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:08,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866739221] [2023-12-16 07:37:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:08,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:08,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:08,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:08,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:08,681 INFO L87 Difference]: Start difference. First operand 2568 states and 4611 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:09,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:09,176 INFO L93 Difference]: Finished difference Result 3086 states and 5385 transitions. [2023-12-16 07:37:09,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:09,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:09,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:09,186 INFO L225 Difference]: With dead ends: 3086 [2023-12-16 07:37:09,186 INFO L226 Difference]: Without dead ends: 2650 [2023-12-16 07:37:09,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:09,189 INFO L413 NwaCegarLoop]: 4121 mSDtfsCounter, 4350 mSDsluCounter, 8168 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4363 SdHoareTripleChecker+Valid, 12289 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:09,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4363 Valid, 12289 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:37:09,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2023-12-16 07:37:09,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2650. [2023-12-16 07:37:09,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 2590 states have (on average 1.7911196911196912) internal successors, (4639), 2593 states have internal predecessors, (4639), 37 states have call successors, (37), 20 states have call predecessors, (37), 21 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-16 07:37:09,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 4714 transitions. [2023-12-16 07:37:09,279 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 4714 transitions. Word has length 91 [2023-12-16 07:37:09,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:09,280 INFO L495 AbstractCegarLoop]: Abstraction has 2650 states and 4714 transitions. [2023-12-16 07:37:09,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:09,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 4714 transitions. [2023-12-16 07:37:09,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:09,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:09,284 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] [2023-12-16 07:37:09,292 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 07:37:09,489 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 07:37:09,489 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:09,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:09,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1407547955, now seen corresponding path program 1 times [2023-12-16 07:37:09,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:09,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151149680] [2023-12-16 07:37:09,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:09,490 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 07:37:09,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:09,492 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 07:37:09,497 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 07:37:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:09,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:09,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:09,651 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 07:37:09,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:09,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:09,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151149680] [2023-12-16 07:37:09,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151149680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:09,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:09,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:09,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859824882] [2023-12-16 07:37:09,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:09,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:09,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:09,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:09,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:09,656 INFO L87 Difference]: Start difference. First operand 2650 states and 4714 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:10,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:10,072 INFO L93 Difference]: Finished difference Result 3250 states and 5591 transitions. [2023-12-16 07:37:10,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:10,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:10,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:10,084 INFO L225 Difference]: With dead ends: 3250 [2023-12-16 07:37:10,084 INFO L226 Difference]: Without dead ends: 2732 [2023-12-16 07:37:10,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:10,087 INFO L413 NwaCegarLoop]: 4118 mSDtfsCounter, 4344 mSDsluCounter, 8164 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4357 SdHoareTripleChecker+Valid, 12282 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:10,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4357 Valid, 12282 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:10,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2023-12-16 07:37:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2732. [2023-12-16 07:37:10,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2732 states, 2666 states have (on average 1.7756939234808702) internal successors, (4734), 2669 states have internal predecessors, (4734), 39 states have call successors, (39), 24 states have call predecessors, (39), 25 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:37:10,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 4813 transitions. [2023-12-16 07:37:10,158 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 4813 transitions. Word has length 91 [2023-12-16 07:37:10,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:10,159 INFO L495 AbstractCegarLoop]: Abstraction has 2732 states and 4813 transitions. [2023-12-16 07:37:10,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:10,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 4813 transitions. [2023-12-16 07:37:10,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:10,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:10,160 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] [2023-12-16 07:37:10,170 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 07:37:10,366 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 07:37:10,367 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:10,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:10,374 INFO L85 PathProgramCache]: Analyzing trace with hash -763217608, now seen corresponding path program 1 times [2023-12-16 07:37:10,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:10,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016064641] [2023-12-16 07:37:10,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:10,376 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 07:37:10,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:10,377 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 07:37:10,384 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 07:37:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:10,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:10,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:10,527 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 07:37:10,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:10,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:10,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016064641] [2023-12-16 07:37:10,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016064641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:10,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:10,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:10,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034805495] [2023-12-16 07:37:10,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:10,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:10,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:10,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:10,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:10,530 INFO L87 Difference]: Start difference. First operand 2732 states and 4813 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:10,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:10,917 INFO L93 Difference]: Finished difference Result 3414 states and 5789 transitions. [2023-12-16 07:37:10,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:10,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:10,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:10,926 INFO L225 Difference]: With dead ends: 3414 [2023-12-16 07:37:10,926 INFO L226 Difference]: Without dead ends: 2814 [2023-12-16 07:37:10,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:10,929 INFO L413 NwaCegarLoop]: 4115 mSDtfsCounter, 4337 mSDsluCounter, 8160 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4350 SdHoareTripleChecker+Valid, 12275 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:10,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4350 Valid, 12275 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:10,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2023-12-16 07:37:10,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2814. [2023-12-16 07:37:10,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2742 states have (on average 1.7596644784828592) internal successors, (4825), 2745 states have internal predecessors, (4825), 41 states have call successors, (41), 28 states have call predecessors, (41), 29 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 07:37:10,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 4908 transitions. [2023-12-16 07:37:10,997 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 4908 transitions. Word has length 91 [2023-12-16 07:37:10,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:10,997 INFO L495 AbstractCegarLoop]: Abstraction has 2814 states and 4908 transitions. [2023-12-16 07:37:10,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:10,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 4908 transitions. [2023-12-16 07:37:10,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:10,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:10,999 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] [2023-12-16 07:37:11,007 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 07:37:11,203 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 07:37:11,204 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:11,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:11,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1934930669, now seen corresponding path program 1 times [2023-12-16 07:37:11,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:11,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933916851] [2023-12-16 07:37:11,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:11,205 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 07:37:11,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:11,206 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 07:37:11,206 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 07:37:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:11,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:11,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:11,346 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 07:37:11,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:11,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:11,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933916851] [2023-12-16 07:37:11,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933916851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:11,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:11,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:11,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639607408] [2023-12-16 07:37:11,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:11,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:11,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:11,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:11,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:11,348 INFO L87 Difference]: Start difference. First operand 2814 states and 4908 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:11,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:11,738 INFO L93 Difference]: Finished difference Result 3578 states and 5979 transitions. [2023-12-16 07:37:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:11,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:11,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:11,746 INFO L225 Difference]: With dead ends: 3578 [2023-12-16 07:37:11,746 INFO L226 Difference]: Without dead ends: 2896 [2023-12-16 07:37:11,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:11,749 INFO L413 NwaCegarLoop]: 4112 mSDtfsCounter, 4329 mSDsluCounter, 8156 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4342 SdHoareTripleChecker+Valid, 12268 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:11,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4342 Valid, 12268 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:11,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2023-12-16 07:37:11,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 2896. [2023-12-16 07:37:11,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2896 states, 2818 states have (on average 1.7430801987224982) internal successors, (4912), 2821 states have internal predecessors, (4912), 43 states have call successors, (43), 32 states have call predecessors, (43), 33 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 07:37:11,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2896 states to 2896 states and 4999 transitions. [2023-12-16 07:37:11,827 INFO L78 Accepts]: Start accepts. Automaton has 2896 states and 4999 transitions. Word has length 91 [2023-12-16 07:37:11,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:11,828 INFO L495 AbstractCegarLoop]: Abstraction has 2896 states and 4999 transitions. [2023-12-16 07:37:11,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:11,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2896 states and 4999 transitions. [2023-12-16 07:37:11,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:11,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:11,830 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] [2023-12-16 07:37:11,836 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 07:37:12,034 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 07:37:12,034 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:12,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:12,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2130892114, now seen corresponding path program 1 times [2023-12-16 07:37:12,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:12,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769127940] [2023-12-16 07:37:12,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:12,035 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 07:37:12,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:12,036 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 07:37:12,038 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 07:37:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:12,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:12,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:12,143 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 07:37:12,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:12,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:12,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769127940] [2023-12-16 07:37:12,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769127940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:12,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:12,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:12,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560220654] [2023-12-16 07:37:12,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:12,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:12,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:12,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:12,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:12,145 INFO L87 Difference]: Start difference. First operand 2896 states and 4999 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:12,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:12,285 INFO L93 Difference]: Finished difference Result 3727 states and 6140 transitions. [2023-12-16 07:37:12,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:12,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:12,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:12,293 INFO L225 Difference]: With dead ends: 3727 [2023-12-16 07:37:12,293 INFO L226 Difference]: Without dead ends: 2964 [2023-12-16 07:37:12,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 07:37:12,297 INFO L413 NwaCegarLoop]: 4197 mSDtfsCounter, 47 mSDsluCounter, 8385 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 12582 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:12,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 12582 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:37:12,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2023-12-16 07:37:12,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2900. [2023-12-16 07:37:12,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2822 states have (on average 1.738483345145287) internal successors, (4906), 2825 states have internal predecessors, (4906), 43 states have call successors, (43), 32 states have call predecessors, (43), 33 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 07:37:12,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 4993 transitions. [2023-12-16 07:37:12,380 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 4993 transitions. Word has length 91 [2023-12-16 07:37:12,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:12,380 INFO L495 AbstractCegarLoop]: Abstraction has 2900 states and 4993 transitions. [2023-12-16 07:37:12,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:12,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 4993 transitions. [2023-12-16 07:37:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:12,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:12,381 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] [2023-12-16 07:37:12,388 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 07:37:12,586 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 07:37:12,586 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:12,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:12,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1697163028, now seen corresponding path program 1 times [2023-12-16 07:37:12,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:12,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125338378] [2023-12-16 07:37:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:12,587 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 07:37:12,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:12,589 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 07:37:12,591 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 07:37:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:12,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:12,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:12,701 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 07:37:12,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:12,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:12,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125338378] [2023-12-16 07:37:12,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125338378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:12,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:12,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:12,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034768792] [2023-12-16 07:37:12,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:12,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:12,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:12,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:12,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:12,704 INFO L87 Difference]: Start difference. First operand 2900 states and 4993 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:12,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:12,836 INFO L93 Difference]: Finished difference Result 3723 states and 6112 transitions. [2023-12-16 07:37:12,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:12,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:12,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:12,843 INFO L225 Difference]: With dead ends: 3723 [2023-12-16 07:37:12,843 INFO L226 Difference]: Without dead ends: 2956 [2023-12-16 07:37:12,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 07:37:12,848 INFO L413 NwaCegarLoop]: 4197 mSDtfsCounter, 38 mSDsluCounter, 8386 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 12583 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:12,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 12583 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:37:12,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2023-12-16 07:37:12,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2904. [2023-12-16 07:37:12,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2904 states, 2826 states have (on average 1.7338995046001415) internal successors, (4900), 2829 states have internal predecessors, (4900), 43 states have call successors, (43), 32 states have call predecessors, (43), 33 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 07:37:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 4987 transitions. [2023-12-16 07:37:12,996 INFO L78 Accepts]: Start accepts. Automaton has 2904 states and 4987 transitions. Word has length 91 [2023-12-16 07:37:12,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:12,997 INFO L495 AbstractCegarLoop]: Abstraction has 2904 states and 4987 transitions. [2023-12-16 07:37:12,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:12,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states and 4987 transitions. [2023-12-16 07:37:12,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:12,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:12,998 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] [2023-12-16 07:37:13,003 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 07:37:13,202 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 07:37:13,203 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:13,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:13,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1253262354, now seen corresponding path program 1 times [2023-12-16 07:37:13,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:13,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020350524] [2023-12-16 07:37:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:13,204 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 07:37:13,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:13,205 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 07:37:13,206 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 07:37:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:13,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:13,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:13,309 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 07:37:13,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:13,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:13,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020350524] [2023-12-16 07:37:13,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020350524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:13,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:13,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:13,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967204509] [2023-12-16 07:37:13,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:13,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:13,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:13,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:13,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:13,311 INFO L87 Difference]: Start difference. First operand 2904 states and 4987 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:13,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:13,442 INFO L93 Difference]: Finished difference Result 3719 states and 6084 transitions. [2023-12-16 07:37:13,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:13,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:13,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:13,448 INFO L225 Difference]: With dead ends: 3719 [2023-12-16 07:37:13,448 INFO L226 Difference]: Without dead ends: 2948 [2023-12-16 07:37:13,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 07:37:13,452 INFO L413 NwaCegarLoop]: 4197 mSDtfsCounter, 29 mSDsluCounter, 8387 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12584 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:13,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12584 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:37:13,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2023-12-16 07:37:13,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2908. [2023-12-16 07:37:13,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2830 states have (on average 1.7293286219081272) internal successors, (4894), 2833 states have internal predecessors, (4894), 43 states have call successors, (43), 32 states have call predecessors, (43), 33 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 07:37:13,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 4981 transitions. [2023-12-16 07:37:13,520 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 4981 transitions. Word has length 91 [2023-12-16 07:37:13,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:13,521 INFO L495 AbstractCegarLoop]: Abstraction has 2908 states and 4981 transitions. [2023-12-16 07:37:13,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:13,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 4981 transitions. [2023-12-16 07:37:13,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:13,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:13,522 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] [2023-12-16 07:37:13,530 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 07:37:13,730 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 07:37:13,730 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:13,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:13,731 INFO L85 PathProgramCache]: Analyzing trace with hash 685899692, now seen corresponding path program 1 times [2023-12-16 07:37:13,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:13,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085264866] [2023-12-16 07:37:13,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:13,731 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 07:37:13,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:13,733 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 07:37:13,764 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 07:37:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:13,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:13,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:13,847 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 07:37:13,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:13,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:13,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085264866] [2023-12-16 07:37:13,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085264866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:13,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:13,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:13,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069271367] [2023-12-16 07:37:13,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:13,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:13,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:13,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:13,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:13,849 INFO L87 Difference]: Start difference. First operand 2908 states and 4981 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:13,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:13,979 INFO L93 Difference]: Finished difference Result 3715 states and 6056 transitions. [2023-12-16 07:37:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:13,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:13,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:13,987 INFO L225 Difference]: With dead ends: 3715 [2023-12-16 07:37:13,988 INFO L226 Difference]: Without dead ends: 2940 [2023-12-16 07:37:13,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 07:37:13,992 INFO L413 NwaCegarLoop]: 4197 mSDtfsCounter, 20 mSDsluCounter, 8388 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12585 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:13,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12585 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:37:13,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2023-12-16 07:37:14,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2912. [2023-12-16 07:37:14,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2912 states, 2834 states have (on average 1.724770642201835) internal successors, (4888), 2837 states have internal predecessors, (4888), 43 states have call successors, (43), 32 states have call predecessors, (43), 33 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 07:37:14,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2912 states to 2912 states and 4975 transitions. [2023-12-16 07:37:14,064 INFO L78 Accepts]: Start accepts. Automaton has 2912 states and 4975 transitions. Word has length 91 [2023-12-16 07:37:14,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:14,065 INFO L495 AbstractCegarLoop]: Abstraction has 2912 states and 4975 transitions. [2023-12-16 07:37:14,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:14,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2912 states and 4975 transitions. [2023-12-16 07:37:14,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:14,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:14,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:37:14,072 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 (16)] Ended with exit code 0 [2023-12-16 07:37:14,271 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 07:37:14,272 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:14,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:14,272 INFO L85 PathProgramCache]: Analyzing trace with hash -211493586, now seen corresponding path program 1 times [2023-12-16 07:37:14,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:14,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487425734] [2023-12-16 07:37:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:14,273 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 07:37:14,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:14,274 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 07:37:14,275 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 07:37:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:14,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:37:14,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:14,372 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 07:37:14,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:14,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:14,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487425734] [2023-12-16 07:37:14,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487425734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:14,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:14,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:14,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118828308] [2023-12-16 07:37:14,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:14,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:14,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:14,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:14,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:14,374 INFO L87 Difference]: Start difference. First operand 2912 states and 4975 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:14,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:14,499 INFO L93 Difference]: Finished difference Result 3699 states and 6010 transitions. [2023-12-16 07:37:14,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:14,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:14,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:14,507 INFO L225 Difference]: With dead ends: 3699 [2023-12-16 07:37:14,507 INFO L226 Difference]: Without dead ends: 2920 [2023-12-16 07:37:14,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 07:37:14,510 INFO L413 NwaCegarLoop]: 4197 mSDtfsCounter, 2 mSDsluCounter, 8389 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12586 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:14,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12586 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:37:14,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2023-12-16 07:37:14,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 2916. [2023-12-16 07:37:14,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2838 states have (on average 1.7202255109231854) internal successors, (4882), 2841 states have internal predecessors, (4882), 43 states have call successors, (43), 32 states have call predecessors, (43), 33 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 07:37:14,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4969 transitions. [2023-12-16 07:37:14,582 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4969 transitions. Word has length 91 [2023-12-16 07:37:14,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:14,582 INFO L495 AbstractCegarLoop]: Abstraction has 2916 states and 4969 transitions. [2023-12-16 07:37:14,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:14,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4969 transitions. [2023-12-16 07:37:14,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:14,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:14,584 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] [2023-12-16 07:37:14,591 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 07:37:14,787 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 07:37:14,788 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:14,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash -283880144, now seen corresponding path program 1 times [2023-12-16 07:37:14,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:14,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527095465] [2023-12-16 07:37:14,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:14,789 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 07:37:14,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:14,790 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 07:37:14,791 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 07:37:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:14,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:37:14,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:14,986 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 07:37:14,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:14,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:14,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527095465] [2023-12-16 07:37:14,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527095465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:14,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:14,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:14,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191287615] [2023-12-16 07:37:14,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:14,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:14,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:14,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:14,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:14,988 INFO L87 Difference]: Start difference. First operand 2916 states and 4969 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:15,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:15,308 INFO L93 Difference]: Finished difference Result 3700 states and 5969 transitions. [2023-12-16 07:37:15,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:37:15,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:15,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:15,319 INFO L225 Difference]: With dead ends: 3700 [2023-12-16 07:37:15,320 INFO L226 Difference]: Without dead ends: 2916 [2023-12-16 07:37:15,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 07:37:15,323 INFO L413 NwaCegarLoop]: 4108 mSDtfsCounter, 4240 mSDsluCounter, 8152 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4252 SdHoareTripleChecker+Valid, 12260 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:15,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4252 Valid, 12260 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:37:15,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2023-12-16 07:37:15,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 2916. [2023-12-16 07:37:15,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2838 states have (on average 1.7177589852008457) internal successors, (4875), 2841 states have internal predecessors, (4875), 43 states have call successors, (43), 32 states have call predecessors, (43), 33 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 07:37:15,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4962 transitions. [2023-12-16 07:37:15,393 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4962 transitions. Word has length 91 [2023-12-16 07:37:15,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:15,393 INFO L495 AbstractCegarLoop]: Abstraction has 2916 states and 4962 transitions. [2023-12-16 07:37:15,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:15,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4962 transitions. [2023-12-16 07:37:15,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:15,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:15,394 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] [2023-12-16 07:37:15,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 07:37:15,599 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 07:37:15,600 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:15,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:15,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1639347890, now seen corresponding path program 1 times [2023-12-16 07:37:15,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:15,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025954964] [2023-12-16 07:37:15,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:15,602 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 07:37:15,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:15,603 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 07:37:15,628 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 07:37:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:15,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:37:15,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:15,802 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 07:37:15,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:15,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:15,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025954964] [2023-12-16 07:37:15,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025954964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:15,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:15,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:15,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104265197] [2023-12-16 07:37:15,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:15,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:37:15,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:15,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:37:15,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:37:15,804 INFO L87 Difference]: Start difference. First operand 2916 states and 4962 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:16,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:16,192 INFO L93 Difference]: Finished difference Result 3800 states and 6097 transitions. [2023-12-16 07:37:16,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:37:16,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-16 07:37:16,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:16,206 INFO L225 Difference]: With dead ends: 3800 [2023-12-16 07:37:16,206 INFO L226 Difference]: Without dead ends: 3016 [2023-12-16 07:37:16,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 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 07:37:16,209 INFO L413 NwaCegarLoop]: 4107 mSDtfsCounter, 4281 mSDsluCounter, 8148 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4293 SdHoareTripleChecker+Valid, 12255 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:16,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4293 Valid, 12255 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:16,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2023-12-16 07:37:16,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2992. [2023-12-16 07:37:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2912 states have (on average 1.698489010989011) internal successors, (4946), 2915 states have internal predecessors, (4946), 43 states have call successors, (43), 34 states have call predecessors, (43), 35 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 07:37:16,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 5033 transitions. [2023-12-16 07:37:16,278 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 5033 transitions. Word has length 91 [2023-12-16 07:37:16,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:16,278 INFO L495 AbstractCegarLoop]: Abstraction has 2992 states and 5033 transitions. [2023-12-16 07:37:16,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:37:16,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 5033 transitions. [2023-12-16 07:37:16,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 07:37:16,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:16,279 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] [2023-12-16 07:37:16,286 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 07:37:16,484 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 07:37:16,484 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:16,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:16,485 INFO L85 PathProgramCache]: Analyzing trace with hash -49595852, now seen corresponding path program 1 times [2023-12-16 07:37:16,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:16,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268310905] [2023-12-16 07:37:16,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:16,485 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 07:37:16,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:16,487 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 07:37:16,519 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 07:37:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:16,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:16,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:16,701 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 07:37:16,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:16,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:16,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268310905] [2023-12-16 07:37:16,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268310905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:16,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:16,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:37:16,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590588475] [2023-12-16 07:37:16,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:16,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:16,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:16,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:16,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:16,704 INFO L87 Difference]: Start difference. First operand 2992 states and 5033 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:37:16,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:16,918 INFO L93 Difference]: Finished difference Result 4683 states and 7136 transitions. [2023-12-16 07:37:16,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:16,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 91 [2023-12-16 07:37:16,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:16,928 INFO L225 Difference]: With dead ends: 4683 [2023-12-16 07:37:16,928 INFO L226 Difference]: Without dead ends: 3824 [2023-12-16 07:37:16,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 07:37:16,931 INFO L413 NwaCegarLoop]: 4228 mSDtfsCounter, 4116 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4116 SdHoareTripleChecker+Valid, 4435 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:16,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4116 Valid, 4435 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:37:16,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3824 states. [2023-12-16 07:37:17,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3824 to 3822. [2023-12-16 07:37:17,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3668 states have (on average 1.6000545256270446) internal successors, (5869), 3674 states have internal predecessors, (5869), 82 states have call successors, (82), 68 states have call predecessors, (82), 70 states have return successors, (84), 80 states have call predecessors, (84), 82 states have call successors, (84) [2023-12-16 07:37:17,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 6035 transitions. [2023-12-16 07:37:17,046 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 6035 transitions. Word has length 91 [2023-12-16 07:37:17,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:17,046 INFO L495 AbstractCegarLoop]: Abstraction has 3822 states and 6035 transitions. [2023-12-16 07:37:17,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:37:17,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 6035 transitions. [2023-12-16 07:37:17,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 07:37:17,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:17,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:17,055 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 07:37:17,254 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 07:37:17,254 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:17,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:17,255 INFO L85 PathProgramCache]: Analyzing trace with hash -820837390, now seen corresponding path program 1 times [2023-12-16 07:37:17,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:17,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647480458] [2023-12-16 07:37:17,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:17,255 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 07:37:17,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:17,256 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 07:37:17,260 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 07:37:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:17,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:17,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 07:37:17,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:17,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:17,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647480458] [2023-12-16 07:37:17,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647480458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:17,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:17,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:17,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144222113] [2023-12-16 07:37:17,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:17,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:17,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:17,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:17,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:17,529 INFO L87 Difference]: Start difference. First operand 3822 states and 6035 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:17,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:17,885 INFO L93 Difference]: Finished difference Result 7104 states and 10039 transitions. [2023-12-16 07:37:17,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:17,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 147 [2023-12-16 07:37:17,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:17,899 INFO L225 Difference]: With dead ends: 7104 [2023-12-16 07:37:17,900 INFO L226 Difference]: Without dead ends: 5416 [2023-12-16 07:37:17,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 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 07:37:17,905 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 4267 mSDsluCounter, 4315 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4271 SdHoareTripleChecker+Valid, 8547 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:17,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4271 Valid, 8547 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:37:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5416 states. [2023-12-16 07:37:18,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5416 to 5414. [2023-12-16 07:37:18,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5117 states have (on average 1.4909126441274183) internal successors, (7629), 5132 states have internal predecessors, (7629), 155 states have call successors, (155), 128 states have call predecessors, (155), 140 states have return successors, (179), 155 states have call predecessors, (179), 155 states have call successors, (179) [2023-12-16 07:37:18,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 7963 transitions. [2023-12-16 07:37:18,089 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 7963 transitions. Word has length 147 [2023-12-16 07:37:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:18,089 INFO L495 AbstractCegarLoop]: Abstraction has 5414 states and 7963 transitions. [2023-12-16 07:37:18,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 7963 transitions. [2023-12-16 07:37:18,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 07:37:18,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:18,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:18,103 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 07:37:18,299 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 07:37:18,299 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:18,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:18,300 INFO L85 PathProgramCache]: Analyzing trace with hash -410227024, now seen corresponding path program 1 times [2023-12-16 07:37:18,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:18,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907656021] [2023-12-16 07:37:18,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:18,301 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 07:37:18,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:18,302 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 07:37:18,305 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 07:37:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:18,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:18,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 07:37:18,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:18,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:18,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907656021] [2023-12-16 07:37:18,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907656021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:18,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:18,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:18,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021801968] [2023-12-16 07:37:18,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:18,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:18,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:18,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:18,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:18,420 INFO L87 Difference]: Start difference. First operand 5414 states and 7963 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:18,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:18,583 INFO L93 Difference]: Finished difference Result 8686 states and 11932 transitions. [2023-12-16 07:37:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:18,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2023-12-16 07:37:18,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:18,597 INFO L225 Difference]: With dead ends: 8686 [2023-12-16 07:37:18,597 INFO L226 Difference]: Without dead ends: 5406 [2023-12-16 07:37:18,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 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 07:37:18,605 INFO L413 NwaCegarLoop]: 4190 mSDtfsCounter, 250 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 8147 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:18,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 8147 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:18,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2023-12-16 07:37:18,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 5406. [2023-12-16 07:37:18,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5112 states have (on average 1.4906103286384977) internal successors, (7620), 5126 states have internal predecessors, (7620), 152 states have call successors, (152), 128 states have call predecessors, (152), 140 states have return successors, (176), 152 states have call predecessors, (176), 152 states have call successors, (176) [2023-12-16 07:37:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 7948 transitions. [2023-12-16 07:37:18,919 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 7948 transitions. Word has length 147 [2023-12-16 07:37:18,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:18,919 INFO L495 AbstractCegarLoop]: Abstraction has 5406 states and 7948 transitions. [2023-12-16 07:37:18,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:18,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 7948 transitions. [2023-12-16 07:37:18,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 07:37:18,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:18,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:18,932 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 07:37:19,129 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 07:37:19,129 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:19,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:19,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1900256499, now seen corresponding path program 1 times [2023-12-16 07:37:19,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:19,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733844151] [2023-12-16 07:37:19,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:19,130 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 07:37:19,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:19,132 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 07:37:19,165 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 07:37:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:19,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:19,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 07:37:19,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:19,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:19,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733844151] [2023-12-16 07:37:19,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733844151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:19,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:19,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:19,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177311695] [2023-12-16 07:37:19,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:19,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:19,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:19,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:19,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:19,427 INFO L87 Difference]: Start difference. First operand 5406 states and 7948 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:19,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:19,911 INFO L93 Difference]: Finished difference Result 11637 states and 15514 transitions. [2023-12-16 07:37:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:19,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 149 [2023-12-16 07:37:19,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:19,934 INFO L225 Difference]: With dead ends: 11637 [2023-12-16 07:37:19,934 INFO L226 Difference]: Without dead ends: 8365 [2023-12-16 07:37:19,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 07:37:19,949 INFO L413 NwaCegarLoop]: 4215 mSDtfsCounter, 4262 mSDsluCounter, 4297 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4267 SdHoareTripleChecker+Valid, 8512 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:19,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4267 Valid, 8512 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:19,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8365 states. [2023-12-16 07:37:20,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8365 to 8363. [2023-12-16 07:37:20,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8363 states, 7802 states have (on average 1.3942578825942067) internal successors, (10878), 7833 states have internal predecessors, (10878), 287 states have call successors, (287), 240 states have call predecessors, (287), 272 states have return successors, (355), 291 states have call predecessors, (355), 287 states have call successors, (355) [2023-12-16 07:37:20,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8363 states to 8363 states and 11520 transitions. [2023-12-16 07:37:20,529 INFO L78 Accepts]: Start accepts. Automaton has 8363 states and 11520 transitions. Word has length 149 [2023-12-16 07:37:20,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:20,529 INFO L495 AbstractCegarLoop]: Abstraction has 8363 states and 11520 transitions. [2023-12-16 07:37:20,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 8363 states and 11520 transitions. [2023-12-16 07:37:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 07:37:20,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:20,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:20,542 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 07:37:20,742 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 07:37:20,742 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:20,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:20,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2056237041, now seen corresponding path program 1 times [2023-12-16 07:37:20,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:20,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965529160] [2023-12-16 07:37:20,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:20,745 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 07:37:20,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:20,746 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 07:37:20,778 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 07:37:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:20,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:20,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 07:37:20,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:20,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:20,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965529160] [2023-12-16 07:37:20,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965529160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:20,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:20,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:20,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889216970] [2023-12-16 07:37:20,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:20,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:20,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:20,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:20,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:20,890 INFO L87 Difference]: Start difference. First operand 8363 states and 11520 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:21,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:21,250 INFO L93 Difference]: Finished difference Result 14585 states and 19049 transitions. [2023-12-16 07:37:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:21,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 149 [2023-12-16 07:37:21,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:21,269 INFO L225 Difference]: With dead ends: 14585 [2023-12-16 07:37:21,269 INFO L226 Difference]: Without dead ends: 8356 [2023-12-16 07:37:21,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 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 07:37:21,284 INFO L413 NwaCegarLoop]: 4189 mSDtfsCounter, 248 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 8146 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:21,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 8146 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:21,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8356 states. [2023-12-16 07:37:21,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8356 to 8356. [2023-12-16 07:37:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8356 states, 7798 states have (on average 1.3940754039497307) internal successors, (10871), 7828 states have internal predecessors, (10871), 284 states have call successors, (284), 240 states have call predecessors, (284), 272 states have return successors, (352), 288 states have call predecessors, (352), 284 states have call successors, (352) [2023-12-16 07:37:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8356 states to 8356 states and 11507 transitions. [2023-12-16 07:37:21,758 INFO L78 Accepts]: Start accepts. Automaton has 8356 states and 11507 transitions. Word has length 149 [2023-12-16 07:37:21,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:21,758 INFO L495 AbstractCegarLoop]: Abstraction has 8356 states and 11507 transitions. [2023-12-16 07:37:21,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:21,758 INFO L276 IsEmpty]: Start isEmpty. Operand 8356 states and 11507 transitions. [2023-12-16 07:37:21,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 07:37:21,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:21,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:21,771 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 07:37:21,971 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 07:37:21,971 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:21,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:21,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1727241038, now seen corresponding path program 1 times [2023-12-16 07:37:21,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:21,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810390370] [2023-12-16 07:37:21,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:21,973 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 07:37:21,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:21,974 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 07:37:22,000 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 07:37:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:22,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:22,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 07:37:22,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:22,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:22,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810390370] [2023-12-16 07:37:22,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810390370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:22,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:22,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:22,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556922430] [2023-12-16 07:37:22,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:22,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:22,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:22,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:22,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:22,270 INFO L87 Difference]: Start difference. First operand 8356 states and 11507 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:22,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:22,909 INFO L93 Difference]: Finished difference Result 20160 states and 25797 transitions. [2023-12-16 07:37:22,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:22,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 151 [2023-12-16 07:37:22,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:22,936 INFO L225 Difference]: With dead ends: 20160 [2023-12-16 07:37:22,937 INFO L226 Difference]: Without dead ends: 13938 [2023-12-16 07:37:22,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 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 07:37:22,954 INFO L413 NwaCegarLoop]: 4129 mSDtfsCounter, 4267 mSDsluCounter, 4222 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4273 SdHoareTripleChecker+Valid, 8351 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:22,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4273 Valid, 8351 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:37:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13938 states. [2023-12-16 07:37:23,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13938 to 13936. [2023-12-16 07:37:23,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13936 states, 12874 states have (on average 1.3210346434674538) internal successors, (17007), 12940 states have internal predecessors, (17007), 532 states have call successors, (532), 448 states have call predecessors, (532), 528 states have return successors, (696), 548 states have call predecessors, (696), 532 states have call successors, (696) [2023-12-16 07:37:23,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13936 states to 13936 states and 18235 transitions. [2023-12-16 07:37:23,603 INFO L78 Accepts]: Start accepts. Automaton has 13936 states and 18235 transitions. Word has length 151 [2023-12-16 07:37:23,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:23,603 INFO L495 AbstractCegarLoop]: Abstraction has 13936 states and 18235 transitions. [2023-12-16 07:37:23,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 13936 states and 18235 transitions. [2023-12-16 07:37:23,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 07:37:23,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:23,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:23,622 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 07:37:23,819 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 07:37:23,819 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:23,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:23,820 INFO L85 PathProgramCache]: Analyzing trace with hash -530136435, now seen corresponding path program 1 times [2023-12-16 07:37:23,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:23,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109536192] [2023-12-16 07:37:23,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:23,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:37:23,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:23,821 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 07:37:23,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 07:37:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:23,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:23,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:24,094 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 07:37:24,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:24,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:24,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109536192] [2023-12-16 07:37:24,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109536192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:24,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:24,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:24,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362874738] [2023-12-16 07:37:24,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:24,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:24,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:24,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:24,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:24,097 INFO L87 Difference]: Start difference. First operand 13936 states and 18235 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:25,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:25,376 INFO L93 Difference]: Finished difference Result 38101 states and 47255 transitions. [2023-12-16 07:37:25,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:25,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 153 [2023-12-16 07:37:25,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:25,446 INFO L225 Difference]: With dead ends: 38101 [2023-12-16 07:37:25,446 INFO L226 Difference]: Without dead ends: 26299 [2023-12-16 07:37:25,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 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 07:37:25,462 INFO L413 NwaCegarLoop]: 4195 mSDtfsCounter, 4258 mSDsluCounter, 4265 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4264 SdHoareTripleChecker+Valid, 8460 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:25,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4264 Valid, 8460 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:37:25,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26299 states. [2023-12-16 07:37:26,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26299 to 25849. [2023-12-16 07:37:26,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25849 states, 23536 states have (on average 1.2631713120326309) internal successors, (29730), 23843 states have internal predecessors, (29730), 999 states have call successors, (999), 832 states have call predecessors, (999), 1312 states have return successors, (1676), 1175 states have call predecessors, (1676), 999 states have call successors, (1676) [2023-12-16 07:37:26,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25849 states to 25849 states and 32405 transitions. [2023-12-16 07:37:26,667 INFO L78 Accepts]: Start accepts. Automaton has 25849 states and 32405 transitions. Word has length 153 [2023-12-16 07:37:26,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:26,667 INFO L495 AbstractCegarLoop]: Abstraction has 25849 states and 32405 transitions. [2023-12-16 07:37:26,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 25849 states and 32405 transitions. [2023-12-16 07:37:26,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 07:37:26,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:26,682 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:26,688 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 07:37:26,887 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 07:37:26,887 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:26,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:26,888 INFO L85 PathProgramCache]: Analyzing trace with hash -103581937, now seen corresponding path program 1 times [2023-12-16 07:37:26,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:26,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042117966] [2023-12-16 07:37:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:26,888 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 07:37:26,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:26,889 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 07:37:26,890 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 07:37:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:27,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:27,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 07:37:27,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:27,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:27,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042117966] [2023-12-16 07:37:27,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042117966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:27,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:27,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:27,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274511406] [2023-12-16 07:37:27,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:27,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:27,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:27,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:27,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:27,024 INFO L87 Difference]: Start difference. First operand 25849 states and 32405 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:28,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:28,083 INFO L93 Difference]: Finished difference Result 49560 states and 60824 transitions. [2023-12-16 07:37:28,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:28,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 153 [2023-12-16 07:37:28,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:28,148 INFO L225 Difference]: With dead ends: 49560 [2023-12-16 07:37:28,148 INFO L226 Difference]: Without dead ends: 25844 [2023-12-16 07:37:28,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 07:37:28,187 INFO L413 NwaCegarLoop]: 4188 mSDtfsCounter, 245 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 8145 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:28,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 8145 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:28,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25844 states. [2023-12-16 07:37:29,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25844 to 25844. [2023-12-16 07:37:29,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25844 states, 23534 states have (on average 1.263108693804708) internal successors, (29726), 23840 states have internal predecessors, (29726), 996 states have call successors, (996), 832 states have call predecessors, (996), 1312 states have return successors, (1672), 1172 states have call predecessors, (1672), 996 states have call successors, (1672) [2023-12-16 07:37:29,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25844 states to 25844 states and 32394 transitions. [2023-12-16 07:37:29,372 INFO L78 Accepts]: Start accepts. Automaton has 25844 states and 32394 transitions. Word has length 153 [2023-12-16 07:37:29,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:29,372 INFO L495 AbstractCegarLoop]: Abstraction has 25844 states and 32394 transitions. [2023-12-16 07:37:29,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 25844 states and 32394 transitions. [2023-12-16 07:37:29,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 07:37:29,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:29,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:29,389 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 07:37:29,589 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 07:37:29,589 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:29,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:29,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1547033970, now seen corresponding path program 1 times [2023-12-16 07:37:29,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:29,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567975812] [2023-12-16 07:37:29,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:29,590 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 07:37:29,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:29,708 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 07:37:29,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 07:37:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:29,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:37:29,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:29,978 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 07:37:29,978 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:29,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:29,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567975812] [2023-12-16 07:37:29,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567975812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:29,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:29,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:37:29,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618744592] [2023-12-16 07:37:29,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:29,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:37:29,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:29,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:37:29,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:37:29,980 INFO L87 Difference]: Start difference. First operand 25844 states and 32394 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:31,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:31,939 INFO L93 Difference]: Finished difference Result 69972 states and 85259 transitions. [2023-12-16 07:37:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:37:31,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 155 [2023-12-16 07:37:31,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:32,032 INFO L225 Difference]: With dead ends: 69972 [2023-12-16 07:37:32,033 INFO L226 Difference]: Without dead ends: 46262 [2023-12-16 07:37:32,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 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 07:37:32,062 INFO L413 NwaCegarLoop]: 4174 mSDtfsCounter, 4241 mSDsluCounter, 4244 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4247 SdHoareTripleChecker+Valid, 8418 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:32,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4247 Valid, 8418 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:37:32,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46262 states. [2023-12-16 07:37:34,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46262 to 46260. [2023-12-16 07:37:34,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46260 states, 41899 states have (on average 1.2332275233299124) internal successors, (51671), 42510 states have internal predecessors, (51671), 1863 states have call successors, (1863), 1536 states have call predecessors, (1863), 2496 states have return successors, (3227), 2215 states have call predecessors, (3227), 1863 states have call successors, (3227) [2023-12-16 07:37:34,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46260 states to 46260 states and 56761 transitions. [2023-12-16 07:37:34,434 INFO L78 Accepts]: Start accepts. Automaton has 46260 states and 56761 transitions. Word has length 155 [2023-12-16 07:37:34,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:34,435 INFO L495 AbstractCegarLoop]: Abstraction has 46260 states and 56761 transitions. [2023-12-16 07:37:34,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:37:34,435 INFO L276 IsEmpty]: Start isEmpty. Operand 46260 states and 56761 transitions. [2023-12-16 07:37:34,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 07:37:34,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:34,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 07:37:34,557 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 07:37:34,753 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 07:37:34,754 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:34,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:34,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1885321520, now seen corresponding path program 1 times [2023-12-16 07:37:34,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:34,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231999254] [2023-12-16 07:37:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:34,755 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 07:37:34,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:34,756 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 07:37:34,757 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 07:37:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:34,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:34,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 07:37:34,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:34,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:34,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231999254] [2023-12-16 07:37:34,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231999254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:34,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:34,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:34,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607479125] [2023-12-16 07:37:34,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:34,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:34,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:34,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:34,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:34,867 INFO L87 Difference]: Start difference. First operand 46260 states and 56761 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:36,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:37:36,846 INFO L93 Difference]: Finished difference Result 90382 states and 109538 transitions. [2023-12-16 07:37:36,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:36,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 155 [2023-12-16 07:37:36,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:37:36,933 INFO L225 Difference]: With dead ends: 90382 [2023-12-16 07:37:36,934 INFO L226 Difference]: Without dead ends: 46256 [2023-12-16 07:37:36,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 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 07:37:36,965 INFO L413 NwaCegarLoop]: 4187 mSDtfsCounter, 243 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 8144 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:36,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 8144 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:37:37,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46256 states. [2023-12-16 07:37:39,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46256 to 46256. [2023-12-16 07:37:39,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46256 states, 41898 states have (on average 1.2332092223972504) internal successors, (51669), 42508 states have internal predecessors, (51669), 1860 states have call successors, (1860), 1536 states have call predecessors, (1860), 2496 states have return successors, (3224), 2212 states have call predecessors, (3224), 1860 states have call successors, (3224) [2023-12-16 07:37:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46256 states to 46256 states and 56753 transitions. [2023-12-16 07:37:39,152 INFO L78 Accepts]: Start accepts. Automaton has 46256 states and 56753 transitions. Word has length 155 [2023-12-16 07:37:39,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:37:39,153 INFO L495 AbstractCegarLoop]: Abstraction has 46256 states and 56753 transitions. [2023-12-16 07:37:39,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:37:39,153 INFO L276 IsEmpty]: Start isEmpty. Operand 46256 states and 56753 transitions. [2023-12-16 07:37:39,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 07:37:39,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:37:39,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:39,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-16 07:37:39,367 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 07:37:39,367 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:37:39,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:37:39,368 INFO L85 PathProgramCache]: Analyzing trace with hash 81259021, now seen corresponding path program 1 times [2023-12-16 07:37:39,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:37:39,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320932945] [2023-12-16 07:37:39,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:37:39,368 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 07:37:39,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:37:39,369 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 07:37:39,370 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 07:37:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:37:39,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:37:39,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:37:39,511 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 07:37:39,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:37:39,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:37:39,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320932945] [2023-12-16 07:37:39,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320932945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:37:39,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:37:39,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:37:39,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590980505] [2023-12-16 07:37:39,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:37:39,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:37:39,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:37:39,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:37:39,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:37:39,513 INFO L87 Difference]: Start difference. First operand 46256 states and 56753 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Received shutdown request... [2023-12-16 07:37:39,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:37:39,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 07:37:39,860 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 139 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:37:39,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 993 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:37:39,861 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:37:39,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2023-12-16 07:37:39,893 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 (30)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:37:39,893 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 07:37:40,061 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 07:37:40,063 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (46256states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (3276 states constructed, input type IntersectNwa). [2023-12-16 07:37:40,064 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:37:40,067 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] [2023-12-16 07:37:40,069 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:37:40,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:37:40 BoogieIcfgContainer [2023-12-16 07:37:40,071 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:37:40,071 INFO L158 Benchmark]: Toolchain (without parser) took 52134.29ms. Allocated memory was 314.6MB in the beginning and 5.7GB in the end (delta: 5.4GB). Free memory was 233.9MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 07:37:40,071 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 197.1MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:37:40,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3036.92ms. Allocated memory was 314.6MB in the beginning and 404.8MB in the end (delta: 90.2MB). Free memory was 233.9MB in the beginning and 196.2MB in the end (delta: 37.7MB). Peak memory consumption was 131.5MB. Max. memory is 8.0GB. [2023-12-16 07:37:40,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 457.99ms. Allocated memory is still 404.8MB. Free memory was 196.2MB in the beginning and 242.5MB in the end (delta: -46.4MB). Peak memory consumption was 58.5MB. Max. memory is 8.0GB. [2023-12-16 07:37:40,072 INFO L158 Benchmark]: Boogie Preprocessor took 649.16ms. Allocated memory is still 404.8MB. Free memory was 242.5MB in the beginning and 225.2MB in the end (delta: 17.3MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. [2023-12-16 07:37:40,072 INFO L158 Benchmark]: RCFGBuilder took 9648.95ms. Allocated memory was 404.8MB in the beginning and 1.1GB in the end (delta: 738.2MB). Free memory was 225.2MB in the beginning and 402.9MB in the end (delta: -177.7MB). Peak memory consumption was 561.5MB. Max. memory is 8.0GB. [2023-12-16 07:37:40,073 INFO L158 Benchmark]: TraceAbstraction took 38333.18ms. Allocated memory was 1.1GB in the beginning and 5.7GB in the end (delta: 4.6GB). Free memory was 401.9MB in the beginning and 5.1GB in the end (delta: -4.7GB). Peak memory consumption was 752.4MB. Max. memory is 8.0GB. [2023-12-16 07:37:40,074 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 197.1MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 3036.92ms. Allocated memory was 314.6MB in the beginning and 404.8MB in the end (delta: 90.2MB). Free memory was 233.9MB in the beginning and 196.2MB in the end (delta: 37.7MB). Peak memory consumption was 131.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 457.99ms. Allocated memory is still 404.8MB. Free memory was 196.2MB in the beginning and 242.5MB in the end (delta: -46.4MB). Peak memory consumption was 58.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 649.16ms. Allocated memory is still 404.8MB. Free memory was 242.5MB in the beginning and 225.2MB in the end (delta: 17.3MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. * RCFGBuilder took 9648.95ms. Allocated memory was 404.8MB in the beginning and 1.1GB in the end (delta: 738.2MB). Free memory was 225.2MB in the beginning and 402.9MB in the end (delta: -177.7MB). Peak memory consumption was 561.5MB. Max. memory is 8.0GB. * TraceAbstraction took 38333.18ms. Allocated memory was 1.1GB in the beginning and 5.7GB in the end (delta: 4.6GB). Free memory was 401.9MB in the beginning and 5.1GB in the end (delta: -4.7GB). Peak memory consumption was 752.4MB. 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 (46256states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (3276 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 (46256states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (3276 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2310 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 38.3s, OverallIterations: 29, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 15.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79144 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78963 mSDsluCounter, 299177 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 181974 mSDsCounter, 578 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5557 IncrementalHoareTripleChecker+Invalid, 6135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 578 mSolverCounterUnsat, 117203 mSDtfsCounter, 5557 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3239 GetRequests, 3158 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46260occurred in iteration=27, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.7s AutomataMinimizationTime, 28 MinimizatonAttempts, 687 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 3245 NumberOfCodeBlocks, 3245 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 3216 ConstructedInterpolants, 0 QuantifiedInterpolants, 5632 SizeOfPredicates, 5 NumberOfNonLiveVariables, 8027 ConjunctsInSsa, 126 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 PerfectInterpolantSequences, 430/430 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