/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_label46+token_ring.06.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:32:42,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:32:42,692 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 07:32:42,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:32:42,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:32:42,718 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:32:42,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:32:42,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:32:42,719 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:32:42,721 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:32:42,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:32:42,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:32:42,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:32:42,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:32:42,723 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:32:42,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:32:42,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:32:42,724 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:32:42,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:32:42,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:32:42,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:32:42,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:32:42,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:32:42,725 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:32:42,726 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:32:42,726 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:32:42,726 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:32:42,726 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:32:42,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:32:42,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:32:42,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:32:42,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:32:42,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:32:42,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:32:42,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:32:42,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:32:42,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:32:42,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:32:42,728 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:32:42,728 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:32:42,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:32:42,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:32:42,728 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:32:42,728 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:32:42,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:32:42,729 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:32:42,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:32:42,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:32:42,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:32:42,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:32:42,946 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:32:42,947 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:32:42,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-2.c [2023-12-16 07:32:43,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:32:44,385 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:32:44,386 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-2.c [2023-12-16 07:32:44,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac9c9549/025d0b68ba94418989b193cc1d698d37/FLAG1447fbc89 [2023-12-16 07:32:44,452 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac9c9549/025d0b68ba94418989b193cc1d698d37 [2023-12-16 07:32:44,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:32:44,456 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:32:44,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:32:44,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:32:44,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:32:44,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:32:44" (1/1) ... [2023-12-16 07:32:44,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379e832b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:44, skipping insertion in model container [2023-12-16 07:32:44,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:32:44" (1/1) ... [2023-12-16 07:32:44,658 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:32:45,883 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_label46+token_ring.06.cil-2.c[382357,382370] [2023-12-16 07:32:45,900 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_label46+token_ring.06.cil-2.c[383339,383352] [2023-12-16 07:32:46,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:32:46,057 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:32:46,702 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_label46+token_ring.06.cil-2.c[382357,382370] [2023-12-16 07:32:46,715 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_label46+token_ring.06.cil-2.c[383339,383352] [2023-12-16 07:32:46,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:32:46,790 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:32:46,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46 WrapperNode [2023-12-16 07:32:46,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:32:46,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:32:46,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:32:46,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:32:46,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:46,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,198 INFO L138 Inliner]: procedures = 57, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12843 [2023-12-16 07:32:47,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:32:47,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:32:47,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:32:47,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:32:47,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,312 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 07:32:47,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,543 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:32:47,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:32:47,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:32:47,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:32:47,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (1/1) ... [2023-12-16 07:32:47,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:32:47,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:32:47,626 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 07:32:47,631 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 07:32:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:32:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:32:47,653 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:32:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:32:47,653 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:32:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:32:47,653 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:32:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:32:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:32:47,653 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:32:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:32:47,654 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:32:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:32:47,654 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:32:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:32:47,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:32:47,739 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:32:47,740 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:32:55,475 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:32:55,577 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:32:55,577 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-12-16 07:32:55,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:32:55 BoogieIcfgContainer [2023-12-16 07:32:55,578 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:32:55,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:32:55,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:32:55,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:32:55,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:32:44" (1/3) ... [2023-12-16 07:32:55,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49806cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:32:55, skipping insertion in model container [2023-12-16 07:32:55,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:32:46" (2/3) ... [2023-12-16 07:32:55,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49806cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:32:55, skipping insertion in model container [2023-12-16 07:32:55,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:32:55" (3/3) ... [2023-12-16 07:32:55,585 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.06.cil-2.c [2023-12-16 07:32:55,598 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:32:55,598 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:32:55,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:32:55,674 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;@68cfdc78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:32:55,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:32:55,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 2333 states, 2304 states have (on average 1.8815104166666667) internal successors, (4335), 2307 states have internal predecessors, (4335), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:32:55,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:32:55,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:55,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:32:55,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:55,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:55,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1496912962, now seen corresponding path program 1 times [2023-12-16 07:32:55,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:55,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520184809] [2023-12-16 07:32:55,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:55,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:32:55,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:55,731 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 07:32:55,737 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 07:32:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:55,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:32:55,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:32:55,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:55,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:55,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520184809] [2023-12-16 07:32:55,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520184809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:55,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:55,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:32:55,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833547781] [2023-12-16 07:32:55,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:55,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:32:55,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:55,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:32:55,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:32:55,969 INFO L87 Difference]: Start difference. First operand has 2333 states, 2304 states have (on average 1.8815104166666667) internal successors, (4335), 2307 states have internal predecessors, (4335), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (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 07:32:56,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:56,100 INFO L93 Difference]: Finished difference Result 4658 states and 8733 transitions. [2023-12-16 07:32:56,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:32:56,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:32:56,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:56,119 INFO L225 Difference]: With dead ends: 4658 [2023-12-16 07:32:56,119 INFO L226 Difference]: Without dead ends: 2329 [2023-12-16 07:32:56,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:32:56,128 INFO L413 NwaCegarLoop]: 4263 mSDtfsCounter, 322 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 8222 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:56,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 8222 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:32:56,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2023-12-16 07:32:56,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2023-12-16 07:32:56,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2301 states have (on average 1.8457192524989134) internal successors, (4247), 2303 states have internal predecessors, (4247), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:32:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4287 transitions. [2023-12-16 07:32:56,228 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4287 transitions. Word has length 101 [2023-12-16 07:32:56,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:56,229 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 4287 transitions. [2023-12-16 07:32:56,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (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 07:32:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4287 transitions. [2023-12-16 07:32:56,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:32:56,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:56,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:32:56,244 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 07:32:56,441 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 07:32:56,443 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:56,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:56,444 INFO L85 PathProgramCache]: Analyzing trace with hash 920991104, now seen corresponding path program 1 times [2023-12-16 07:32:56,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:56,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438658025] [2023-12-16 07:32:56,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:56,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:32:56,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:56,447 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 07:32:56,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 07:32:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:56,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:56,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:32:56,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:56,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:56,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438658025] [2023-12-16 07:32:56,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438658025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:56,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:56,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:56,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593139276] [2023-12-16 07:32:56,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:56,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:32:56,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:56,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:32:56,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:32:56,671 INFO L87 Difference]: Start difference. First operand 2329 states and 4287 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:32:57,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:57,017 INFO L93 Difference]: Finished difference Result 2525 states and 4600 transitions. [2023-12-16 07:32:57,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:57,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:32:57,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:57,028 INFO L225 Difference]: With dead ends: 2525 [2023-12-16 07:32:57,028 INFO L226 Difference]: Without dead ends: 2329 [2023-12-16 07:32:57,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:32:57,031 INFO L413 NwaCegarLoop]: 4160 mSDtfsCounter, 4387 mSDsluCounter, 8228 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4401 SdHoareTripleChecker+Valid, 12388 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:57,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4401 Valid, 12388 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:32:57,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2023-12-16 07:32:57,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2023-12-16 07:32:57,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2301 states have (on average 1.8444154715341157) internal successors, (4244), 2303 states have internal predecessors, (4244), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:32:57,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4284 transitions. [2023-12-16 07:32:57,081 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4284 transitions. Word has length 101 [2023-12-16 07:32:57,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:57,081 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 4284 transitions. [2023-12-16 07:32:57,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:32:57,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4284 transitions. [2023-12-16 07:32:57,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:32:57,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:57,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:32:57,103 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 (3)] Forceful destruction successful, exit code 0 [2023-12-16 07:32:57,289 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 07:32:57,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:57,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:57,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1474861120, now seen corresponding path program 1 times [2023-12-16 07:32:57,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:57,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880510500] [2023-12-16 07:32:57,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:57,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:32:57,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:57,303 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 07:32:57,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 07:32:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:57,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:57,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:57,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:32:57,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:57,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:57,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880510500] [2023-12-16 07:32:57,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880510500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:57,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:57,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:57,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28427238] [2023-12-16 07:32:57,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:57,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:32:57,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:57,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:32:57,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:32:57,480 INFO L87 Difference]: Start difference. First operand 2329 states and 4284 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:32:57,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:57,771 INFO L93 Difference]: Finished difference Result 2525 states and 4594 transitions. [2023-12-16 07:32:57,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:57,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:32:57,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:57,780 INFO L225 Difference]: With dead ends: 2525 [2023-12-16 07:32:57,781 INFO L226 Difference]: Without dead ends: 2329 [2023-12-16 07:32:57,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:32:57,783 INFO L413 NwaCegarLoop]: 4157 mSDtfsCounter, 4381 mSDsluCounter, 8224 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4395 SdHoareTripleChecker+Valid, 12381 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:57,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4395 Valid, 12381 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:32:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2023-12-16 07:32:57,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2023-12-16 07:32:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2301 states have (on average 1.8431116905693177) internal successors, (4241), 2303 states have internal predecessors, (4241), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:32:57,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4281 transitions. [2023-12-16 07:32:57,828 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4281 transitions. Word has length 101 [2023-12-16 07:32:57,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:57,828 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 4281 transitions. [2023-12-16 07:32:57,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:32:57,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4281 transitions. [2023-12-16 07:32:57,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:32:57,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:57,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:32:57,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 07:32:58,034 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 07:32:58,034 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:58,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:58,035 INFO L85 PathProgramCache]: Analyzing trace with hash 940975230, now seen corresponding path program 1 times [2023-12-16 07:32:58,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:58,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236917580] [2023-12-16 07:32:58,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:58,035 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 07:32:58,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:58,037 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 07:32:58,066 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 07:32:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:58,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:58,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:58,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:32:58,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:58,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:58,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236917580] [2023-12-16 07:32:58,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236917580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:58,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:58,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:58,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655792081] [2023-12-16 07:32:58,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:58,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:32:58,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:58,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:32:58,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:32:58,193 INFO L87 Difference]: Start difference. First operand 2329 states and 4281 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:32:58,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:58,511 INFO L93 Difference]: Finished difference Result 2525 states and 4588 transitions. [2023-12-16 07:32:58,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:58,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:32:58,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:58,519 INFO L225 Difference]: With dead ends: 2525 [2023-12-16 07:32:58,519 INFO L226 Difference]: Without dead ends: 2329 [2023-12-16 07:32:58,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:32:58,522 INFO L413 NwaCegarLoop]: 4154 mSDtfsCounter, 4375 mSDsluCounter, 8220 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4389 SdHoareTripleChecker+Valid, 12374 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:58,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4389 Valid, 12374 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:32:58,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2023-12-16 07:32:58,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2023-12-16 07:32:58,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2301 states have (on average 1.8418079096045197) internal successors, (4238), 2303 states have internal predecessors, (4238), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:32:58,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4278 transitions. [2023-12-16 07:32:58,569 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4278 transitions. Word has length 101 [2023-12-16 07:32:58,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:58,569 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 4278 transitions. [2023-12-16 07:32:58,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:32:58,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4278 transitions. [2023-12-16 07:32:58,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:32:58,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:58,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:32:58,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 07:32:58,775 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 07:32:58,775 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:58,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:58,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1756358334, now seen corresponding path program 1 times [2023-12-16 07:32:58,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:58,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121717142] [2023-12-16 07:32:58,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:58,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:32:58,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:58,777 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 07:32:58,806 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 07:32:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:58,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:58,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:58,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:32:58,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:58,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:58,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121717142] [2023-12-16 07:32:58,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121717142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:58,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:58,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:58,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724304019] [2023-12-16 07:32:58,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:58,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:32:58,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:58,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:32:58,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:32:58,917 INFO L87 Difference]: Start difference. First operand 2329 states and 4278 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:32:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:59,207 INFO L93 Difference]: Finished difference Result 2525 states and 4582 transitions. [2023-12-16 07:32:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:59,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:32:59,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:59,216 INFO L225 Difference]: With dead ends: 2525 [2023-12-16 07:32:59,216 INFO L226 Difference]: Without dead ends: 2329 [2023-12-16 07:32:59,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:32:59,218 INFO L413 NwaCegarLoop]: 4151 mSDtfsCounter, 4369 mSDsluCounter, 8216 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 12367 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:59,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 12367 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:32:59,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2023-12-16 07:32:59,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2023-12-16 07:32:59,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2301 states have (on average 1.840504128639722) internal successors, (4235), 2303 states have internal predecessors, (4235), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:32:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4275 transitions. [2023-12-16 07:32:59,262 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4275 transitions. Word has length 101 [2023-12-16 07:32:59,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:59,263 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 4275 transitions. [2023-12-16 07:32:59,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:32:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4275 transitions. [2023-12-16 07:32:59,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:32:59,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:59,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:32:59,270 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 07:32:59,470 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 07:32:59,471 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:32:59,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:32:59,471 INFO L85 PathProgramCache]: Analyzing trace with hash 951377022, now seen corresponding path program 1 times [2023-12-16 07:32:59,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:32:59,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717668217] [2023-12-16 07:32:59,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:32:59,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:32:59,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:32:59,473 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 07:32:59,482 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 07:32:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:32:59,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:32:59,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:32:59,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:32:59,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:32:59,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:32:59,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717668217] [2023-12-16 07:32:59,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717668217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:32:59,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:32:59,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:32:59,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254358120] [2023-12-16 07:32:59,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:32:59,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:32:59,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:32:59,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:32:59,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:32:59,609 INFO L87 Difference]: Start difference. First operand 2329 states and 4275 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:32:59,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:32:59,897 INFO L93 Difference]: Finished difference Result 2525 states and 4576 transitions. [2023-12-16 07:32:59,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:32:59,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:32:59,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:32:59,905 INFO L225 Difference]: With dead ends: 2525 [2023-12-16 07:32:59,905 INFO L226 Difference]: Without dead ends: 2329 [2023-12-16 07:32:59,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:32:59,906 INFO L413 NwaCegarLoop]: 4148 mSDtfsCounter, 4363 mSDsluCounter, 8212 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4377 SdHoareTripleChecker+Valid, 12360 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:32:59,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4377 Valid, 12360 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:32:59,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2023-12-16 07:32:59,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2023-12-16 07:32:59,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2301 states have (on average 1.839200347674924) internal successors, (4232), 2303 states have internal predecessors, (4232), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:32:59,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4272 transitions. [2023-12-16 07:32:59,947 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4272 transitions. Word has length 101 [2023-12-16 07:32:59,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:32:59,947 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 4272 transitions. [2023-12-16 07:32:59,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:32:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4272 transitions. [2023-12-16 07:32:59,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:32:59,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:32:59,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:32:59,954 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 07:33:00,154 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 07:33:00,155 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:00,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:00,155 INFO L85 PathProgramCache]: Analyzing trace with hash -44421442, now seen corresponding path program 1 times [2023-12-16 07:33:00,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:00,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160054569] [2023-12-16 07:33:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:00,156 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 07:33:00,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:00,157 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 07:33:00,160 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 07:33:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:00,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:00,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:00,304 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 07:33:00,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:00,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:00,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160054569] [2023-12-16 07:33:00,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160054569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:00,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:00,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:00,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338617987] [2023-12-16 07:33:00,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:00,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:33:00,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:00,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:33:00,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:33:00,306 INFO L87 Difference]: Start difference. First operand 2329 states and 4272 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:00,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:00,591 INFO L93 Difference]: Finished difference Result 2525 states and 4570 transitions. [2023-12-16 07:33:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:33:00,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:00,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:00,598 INFO L225 Difference]: With dead ends: 2525 [2023-12-16 07:33:00,598 INFO L226 Difference]: Without dead ends: 2329 [2023-12-16 07:33:00,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:33:00,599 INFO L413 NwaCegarLoop]: 4145 mSDtfsCounter, 4357 mSDsluCounter, 8208 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4371 SdHoareTripleChecker+Valid, 12353 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:00,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4371 Valid, 12353 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:33:00,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2023-12-16 07:33:00,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2023-12-16 07:33:00,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2301 states have (on average 1.8378965667101261) internal successors, (4229), 2303 states have internal predecessors, (4229), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 07:33:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4269 transitions. [2023-12-16 07:33:00,710 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4269 transitions. Word has length 101 [2023-12-16 07:33:00,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:00,710 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 4269 transitions. [2023-12-16 07:33:00,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:00,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4269 transitions. [2023-12-16 07:33:00,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:00,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:00,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:00,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 07:33:00,928 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 07:33:00,929 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:00,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:00,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1046375298, now seen corresponding path program 1 times [2023-12-16 07:33:00,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:00,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125664867] [2023-12-16 07:33:00,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:00,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:33:00,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:00,932 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 07:33:00,937 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 07:33:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:01,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:01,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:01,067 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 07:33:01,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:01,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:01,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125664867] [2023-12-16 07:33:01,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125664867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:01,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:01,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:01,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208940712] [2023-12-16 07:33:01,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:01,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:33:01,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:01,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:33:01,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:33:01,069 INFO L87 Difference]: Start difference. First operand 2329 states and 4269 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:01,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:01,415 INFO L93 Difference]: Finished difference Result 2572 states and 4641 transitions. [2023-12-16 07:33:01,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:01,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:01,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:01,422 INFO L225 Difference]: With dead ends: 2572 [2023-12-16 07:33:01,422 INFO L226 Difference]: Without dead ends: 2376 [2023-12-16 07:33:01,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:33:01,424 INFO L413 NwaCegarLoop]: 4143 mSDtfsCounter, 4411 mSDsluCounter, 8204 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4425 SdHoareTripleChecker+Valid, 12347 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:01,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4425 Valid, 12347 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:33:01,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2023-12-16 07:33:01,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 2376. [2023-12-16 07:33:01,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 2345 states have (on average 1.8294243070362473) internal successors, (4290), 2347 states have internal predecessors, (4290), 21 states have call successors, (21), 8 states have call predecessors, (21), 8 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 07:33:01,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 4332 transitions. [2023-12-16 07:33:01,468 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 4332 transitions. Word has length 101 [2023-12-16 07:33:01,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:01,468 INFO L495 AbstractCegarLoop]: Abstraction has 2376 states and 4332 transitions. [2023-12-16 07:33:01,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:01,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 4332 transitions. [2023-12-16 07:33:01,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:01,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:01,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:01,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 07:33:01,673 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 07:33:01,674 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:01,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:01,674 INFO L85 PathProgramCache]: Analyzing trace with hash 897663965, now seen corresponding path program 1 times [2023-12-16 07:33:01,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:01,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434577806] [2023-12-16 07:33:01,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:01,675 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 07:33:01,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:01,676 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 07:33:01,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 07:33:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:01,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:01,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:01,810 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 07:33:01,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:01,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:01,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434577806] [2023-12-16 07:33:01,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434577806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:01,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:01,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:01,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451725809] [2023-12-16 07:33:01,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:01,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:33:01,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:01,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:33:01,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:33:01,812 INFO L87 Difference]: Start difference. First operand 2376 states and 4332 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:02,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:02,162 INFO L93 Difference]: Finished difference Result 2666 states and 4767 transitions. [2023-12-16 07:33:02,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:02,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:02,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:02,169 INFO L225 Difference]: With dead ends: 2666 [2023-12-16 07:33:02,169 INFO L226 Difference]: Without dead ends: 2423 [2023-12-16 07:33:02,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:33:02,171 INFO L413 NwaCegarLoop]: 4140 mSDtfsCounter, 4403 mSDsluCounter, 8200 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4417 SdHoareTripleChecker+Valid, 12340 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:02,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4417 Valid, 12340 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:33:02,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2023-12-16 07:33:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2423. [2023-12-16 07:33:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2423 states, 2389 states have (on average 1.8204269568857263) internal successors, (4349), 2391 states have internal predecessors, (4349), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 07:33:02,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 4393 transitions. [2023-12-16 07:33:02,208 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 4393 transitions. Word has length 101 [2023-12-16 07:33:02,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:02,208 INFO L495 AbstractCegarLoop]: Abstraction has 2423 states and 4393 transitions. [2023-12-16 07:33:02,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:02,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 4393 transitions. [2023-12-16 07:33:02,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:02,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:02,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:02,215 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 07:33:02,415 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 07:33:02,415 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:02,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:02,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1936892, now seen corresponding path program 1 times [2023-12-16 07:33:02,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:02,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035591084] [2023-12-16 07:33:02,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:02,416 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 07:33:02,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:02,417 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 07:33:02,421 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 07:33:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:02,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:02,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:02,540 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 07:33:02,540 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:02,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:02,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035591084] [2023-12-16 07:33:02,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035591084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:02,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:02,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:02,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634182634] [2023-12-16 07:33:02,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:02,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:33:02,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:02,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:33:02,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:33:02,542 INFO L87 Difference]: Start difference. First operand 2423 states and 4393 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:02,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:02,877 INFO L93 Difference]: Finished difference Result 2760 states and 4889 transitions. [2023-12-16 07:33:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:02,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:02,885 INFO L225 Difference]: With dead ends: 2760 [2023-12-16 07:33:02,885 INFO L226 Difference]: Without dead ends: 2470 [2023-12-16 07:33:02,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:33:02,887 INFO L413 NwaCegarLoop]: 4137 mSDtfsCounter, 4397 mSDsluCounter, 8196 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4411 SdHoareTripleChecker+Valid, 12333 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:02,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4411 Valid, 12333 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:33:02,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2023-12-16 07:33:02,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2470. [2023-12-16 07:33:02,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2433 states have (on average 1.8109330045211673) internal successors, (4406), 2435 states have internal predecessors, (4406), 23 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 07:33:02,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 4452 transitions. [2023-12-16 07:33:02,934 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 4452 transitions. Word has length 101 [2023-12-16 07:33:02,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:02,934 INFO L495 AbstractCegarLoop]: Abstraction has 2470 states and 4452 transitions. [2023-12-16 07:33:02,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:02,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 4452 transitions. [2023-12-16 07:33:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:02,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:02,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:02,942 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 07:33:03,139 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 07:33:03,140 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:03,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:03,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1945788795, now seen corresponding path program 1 times [2023-12-16 07:33:03,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:03,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121841890] [2023-12-16 07:33:03,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:03,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:33:03,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:03,142 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 07:33:03,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 07:33:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:03,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:03,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:03,285 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 07:33:03,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:03,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:03,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121841890] [2023-12-16 07:33:03,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121841890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:03,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:03,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:03,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638942926] [2023-12-16 07:33:03,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:03,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:33:03,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:03,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:33:03,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:33:03,287 INFO L87 Difference]: Start difference. First operand 2470 states and 4452 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:03,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:03,621 INFO L93 Difference]: Finished difference Result 2854 states and 5007 transitions. [2023-12-16 07:33:03,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:03,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:03,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:03,627 INFO L225 Difference]: With dead ends: 2854 [2023-12-16 07:33:03,627 INFO L226 Difference]: Without dead ends: 2517 [2023-12-16 07:33:03,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:33:03,629 INFO L413 NwaCegarLoop]: 4134 mSDtfsCounter, 4390 mSDsluCounter, 8192 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4404 SdHoareTripleChecker+Valid, 12326 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:03,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4404 Valid, 12326 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:33:03,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2023-12-16 07:33:03,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2517. [2023-12-16 07:33:03,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2477 states have (on average 1.8009689140088818) internal successors, (4461), 2479 states have internal predecessors, (4461), 24 states have call successors, (24), 14 states have call predecessors, (24), 14 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:33:03,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 4509 transitions. [2023-12-16 07:33:03,668 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 4509 transitions. Word has length 101 [2023-12-16 07:33:03,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:03,668 INFO L495 AbstractCegarLoop]: Abstraction has 2517 states and 4509 transitions. [2023-12-16 07:33:03,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:03,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 4509 transitions. [2023-12-16 07:33:03,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:03,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:03,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:03,675 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 07:33:03,873 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 07:33:03,873 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:03,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:03,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1432722501, now seen corresponding path program 1 times [2023-12-16 07:33:03,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:03,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727104599] [2023-12-16 07:33:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:03,874 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 07:33:03,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:03,876 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 07:33:03,876 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 07:33:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:03,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:03,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:03,998 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 07:33:03,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:03,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:03,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727104599] [2023-12-16 07:33:03,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727104599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:03,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:03,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:03,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103757063] [2023-12-16 07:33:03,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:03,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:33:03,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:04,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:33:04,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:33:04,001 INFO L87 Difference]: Start difference. First operand 2517 states and 4509 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:04,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:04,318 INFO L93 Difference]: Finished difference Result 2948 states and 5121 transitions. [2023-12-16 07:33:04,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:04,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:04,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:04,323 INFO L225 Difference]: With dead ends: 2948 [2023-12-16 07:33:04,324 INFO L226 Difference]: Without dead ends: 2564 [2023-12-16 07:33:04,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:33:04,325 INFO L413 NwaCegarLoop]: 4131 mSDtfsCounter, 4383 mSDsluCounter, 8188 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4397 SdHoareTripleChecker+Valid, 12319 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:04,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4397 Valid, 12319 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:33:04,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2023-12-16 07:33:04,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2564. [2023-12-16 07:33:04,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2521 states have (on average 1.7905593018643395) internal successors, (4514), 2523 states have internal predecessors, (4514), 25 states have call successors, (25), 16 states have call predecessors, (25), 16 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 07:33:04,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 4564 transitions. [2023-12-16 07:33:04,371 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 4564 transitions. Word has length 101 [2023-12-16 07:33:04,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:04,371 INFO L495 AbstractCegarLoop]: Abstraction has 2564 states and 4564 transitions. [2023-12-16 07:33:04,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:04,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 4564 transitions. [2023-12-16 07:33:04,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:04,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:04,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:04,375 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 07:33:04,575 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 07:33:04,576 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:04,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:04,576 INFO L85 PathProgramCache]: Analyzing trace with hash -335913092, now seen corresponding path program 1 times [2023-12-16 07:33:04,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:04,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351141091] [2023-12-16 07:33:04,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:04,577 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 07:33:04,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:04,578 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 07:33:04,578 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 07:33:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:04,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:04,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:04,697 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 07:33:04,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:04,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:04,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351141091] [2023-12-16 07:33:04,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351141091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:04,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:04,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:04,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446020371] [2023-12-16 07:33:04,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:04,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:33:04,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:04,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:33:04,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:33:04,699 INFO L87 Difference]: Start difference. First operand 2564 states and 4564 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:05,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:05,037 INFO L93 Difference]: Finished difference Result 3042 states and 5231 transitions. [2023-12-16 07:33:05,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:05,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:05,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:05,046 INFO L225 Difference]: With dead ends: 3042 [2023-12-16 07:33:05,046 INFO L226 Difference]: Without dead ends: 2611 [2023-12-16 07:33:05,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 07:33:05,049 INFO L413 NwaCegarLoop]: 4128 mSDtfsCounter, 4376 mSDsluCounter, 8184 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4390 SdHoareTripleChecker+Valid, 12312 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:05,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4390 Valid, 12312 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:33:05,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2023-12-16 07:33:05,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2023-12-16 07:33:05,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2565 states have (on average 1.7797270955165692) internal successors, (4565), 2567 states have internal predecessors, (4565), 26 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:33:05,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 4617 transitions. [2023-12-16 07:33:05,193 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 4617 transitions. Word has length 101 [2023-12-16 07:33:05,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:05,193 INFO L495 AbstractCegarLoop]: Abstraction has 2611 states and 4617 transitions. [2023-12-16 07:33:05,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:05,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 4617 transitions. [2023-12-16 07:33:05,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:05,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:05,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:05,200 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 07:33:05,397 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 07:33:05,398 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:05,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:05,398 INFO L85 PathProgramCache]: Analyzing trace with hash 53866940, now seen corresponding path program 1 times [2023-12-16 07:33:05,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:05,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591603423] [2023-12-16 07:33:05,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:05,399 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 07:33:05,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:05,400 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 07:33:05,404 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 07:33:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:05,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:05,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:05,491 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 07:33:05,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:05,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:05,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591603423] [2023-12-16 07:33:05,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591603423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:05,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:05,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:05,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537126926] [2023-12-16 07:33:05,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:05,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:05,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:05,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:05,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:05,493 INFO L87 Difference]: Start difference. First operand 2611 states and 4617 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:05,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:05,597 INFO L93 Difference]: Finished difference Result 3128 states and 5325 transitions. [2023-12-16 07:33:05,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:33:05,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:05,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:05,603 INFO L225 Difference]: With dead ends: 3128 [2023-12-16 07:33:05,603 INFO L226 Difference]: Without dead ends: 2651 [2023-12-16 07:33:05,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 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 07:33:05,604 INFO L413 NwaCegarLoop]: 4224 mSDtfsCounter, 56 mSDsluCounter, 8438 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 12662 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:05,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 12662 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:33:05,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2023-12-16 07:33:05,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2613. [2023-12-16 07:33:05,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2567 states have (on average 1.7767822360732373) internal successors, (4561), 2569 states have internal predecessors, (4561), 26 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:33:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 4613 transitions. [2023-12-16 07:33:05,646 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 4613 transitions. Word has length 101 [2023-12-16 07:33:05,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:05,647 INFO L495 AbstractCegarLoop]: Abstraction has 2613 states and 4613 transitions. [2023-12-16 07:33:05,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:05,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 4613 transitions. [2023-12-16 07:33:05,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:05,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:05,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:05,654 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 07:33:05,851 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 07:33:05,852 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:05,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:05,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1632312898, now seen corresponding path program 1 times [2023-12-16 07:33:05,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:05,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110228028] [2023-12-16 07:33:05,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:05,855 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 07:33:05,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:05,857 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 07:33:05,861 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 07:33:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:05,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:05,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:05,947 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 07:33:05,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:05,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:05,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110228028] [2023-12-16 07:33:05,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110228028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:05,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:05,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:05,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458353848] [2023-12-16 07:33:05,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:05,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:05,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:05,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:05,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:05,948 INFO L87 Difference]: Start difference. First operand 2613 states and 4613 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:06,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:06,037 INFO L93 Difference]: Finished difference Result 3330 states and 5586 transitions. [2023-12-16 07:33:06,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:33:06,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:06,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:06,041 INFO L225 Difference]: With dead ends: 3330 [2023-12-16 07:33:06,041 INFO L226 Difference]: Without dead ends: 2851 [2023-12-16 07:33:06,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 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 07:33:06,043 INFO L413 NwaCegarLoop]: 4224 mSDtfsCounter, 47 mSDsluCounter, 8443 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 12667 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:06,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 12667 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:33:06,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2023-12-16 07:33:06,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2627. [2023-12-16 07:33:06,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2581 states have (on average 1.7725687717938783) internal successors, (4575), 2583 states have internal predecessors, (4575), 26 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:33:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4627 transitions. [2023-12-16 07:33:06,086 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4627 transitions. Word has length 101 [2023-12-16 07:33:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:06,086 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4627 transitions. [2023-12-16 07:33:06,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:06,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4627 transitions. [2023-12-16 07:33:06,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:06,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:06,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:06,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 07:33:06,291 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 07:33:06,291 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:06,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:06,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1430488964, now seen corresponding path program 1 times [2023-12-16 07:33:06,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:06,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115707881] [2023-12-16 07:33:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:06,292 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 07:33:06,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:06,293 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 07:33:06,294 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 07:33:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:06,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:06,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:06,381 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 07:33:06,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:06,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:06,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115707881] [2023-12-16 07:33:06,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115707881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:06,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:06,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:06,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399351632] [2023-12-16 07:33:06,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:06,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:06,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:06,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:06,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:06,383 INFO L87 Difference]: Start difference. First operand 2627 states and 4627 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:06,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:06,475 INFO L93 Difference]: Finished difference Result 3148 states and 5328 transitions. [2023-12-16 07:33:06,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:33:06,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:06,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:06,480 INFO L225 Difference]: With dead ends: 3148 [2023-12-16 07:33:06,480 INFO L226 Difference]: Without dead ends: 2655 [2023-12-16 07:33:06,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 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 07:33:06,482 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 38 mSDsluCounter, 8441 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 12666 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:06,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 12666 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:33:06,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2655 states. [2023-12-16 07:33:06,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 2629. [2023-12-16 07:33:06,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 2583 states have (on average 1.7696476964769647) internal successors, (4571), 2585 states have internal predecessors, (4571), 26 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:33:06,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 4623 transitions. [2023-12-16 07:33:06,526 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 4623 transitions. Word has length 101 [2023-12-16 07:33:06,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:06,526 INFO L495 AbstractCegarLoop]: Abstraction has 2629 states and 4623 transitions. [2023-12-16 07:33:06,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:06,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 4623 transitions. [2023-12-16 07:33:06,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:06,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:06,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:06,533 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 07:33:06,731 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 07:33:06,731 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:06,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:06,732 INFO L85 PathProgramCache]: Analyzing trace with hash -43703554, now seen corresponding path program 1 times [2023-12-16 07:33:06,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:06,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446287547] [2023-12-16 07:33:06,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:06,732 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 07:33:06,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:06,733 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 07:33:06,766 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 07:33:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:06,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:06,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:06,830 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 07:33:06,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:06,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:06,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446287547] [2023-12-16 07:33:06,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446287547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:06,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:06,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:06,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959441079] [2023-12-16 07:33:06,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:06,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:06,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:06,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:06,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:06,832 INFO L87 Difference]: Start difference. First operand 2629 states and 4623 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:06,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:06,936 INFO L93 Difference]: Finished difference Result 3146 states and 5312 transitions. [2023-12-16 07:33:06,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:33:06,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:06,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:06,941 INFO L225 Difference]: With dead ends: 3146 [2023-12-16 07:33:06,941 INFO L226 Difference]: Without dead ends: 2651 [2023-12-16 07:33:06,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 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 07:33:06,943 INFO L413 NwaCegarLoop]: 4224 mSDtfsCounter, 29 mSDsluCounter, 8440 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12664 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:06,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12664 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:33:06,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2023-12-16 07:33:06,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2631. [2023-12-16 07:33:06,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2585 states have (on average 1.7667311411992264) internal successors, (4567), 2587 states have internal predecessors, (4567), 26 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:33:06,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 4619 transitions. [2023-12-16 07:33:06,985 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 4619 transitions. Word has length 101 [2023-12-16 07:33:06,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:06,985 INFO L495 AbstractCegarLoop]: Abstraction has 2631 states and 4619 transitions. [2023-12-16 07:33:06,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:06,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 4619 transitions. [2023-12-16 07:33:06,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:06,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:06,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:06,992 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 07:33:07,200 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 07:33:07,201 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:07,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:07,201 INFO L85 PathProgramCache]: Analyzing trace with hash -524783812, now seen corresponding path program 1 times [2023-12-16 07:33:07,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:07,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386835734] [2023-12-16 07:33:07,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:07,202 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 07:33:07,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:07,203 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 07:33:07,235 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 07:33:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:07,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:07,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:07,303 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 07:33:07,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:07,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:07,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386835734] [2023-12-16 07:33:07,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386835734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:07,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:07,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:07,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545758506] [2023-12-16 07:33:07,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:07,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:07,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:07,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:07,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:07,306 INFO L87 Difference]: Start difference. First operand 2631 states and 4619 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:07,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:07,400 INFO L93 Difference]: Finished difference Result 3138 states and 5288 transitions. [2023-12-16 07:33:07,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:33:07,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:07,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:07,406 INFO L225 Difference]: With dead ends: 3138 [2023-12-16 07:33:07,406 INFO L226 Difference]: Without dead ends: 2641 [2023-12-16 07:33:07,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 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 07:33:07,407 INFO L413 NwaCegarLoop]: 4224 mSDtfsCounter, 11 mSDsluCounter, 8442 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12666 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:07,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12666 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:33:07,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2023-12-16 07:33:07,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 2633. [2023-12-16 07:33:07,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2587 states have (on average 1.763819095477387) internal successors, (4563), 2589 states have internal predecessors, (4563), 26 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:33:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 4615 transitions. [2023-12-16 07:33:07,453 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 4615 transitions. Word has length 101 [2023-12-16 07:33:07,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:07,453 INFO L495 AbstractCegarLoop]: Abstraction has 2633 states and 4615 transitions. [2023-12-16 07:33:07,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:07,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 4615 transitions. [2023-12-16 07:33:07,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:07,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:07,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:07,460 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 07:33:07,658 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 07:33:07,658 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:07,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:07,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1896591110, now seen corresponding path program 1 times [2023-12-16 07:33:07,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:07,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212476521] [2023-12-16 07:33:07,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:07,659 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 07:33:07,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:07,660 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 07:33:07,696 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 07:33:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:07,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:33:07,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:07,757 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 07:33:07,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:07,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:07,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212476521] [2023-12-16 07:33:07,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212476521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:07,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:07,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:07,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442818911] [2023-12-16 07:33:07,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:07,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:07,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:07,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:07,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:07,759 INFO L87 Difference]: Start difference. First operand 2633 states and 4615 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:07,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:07,851 INFO L93 Difference]: Finished difference Result 3136 states and 5272 transitions. [2023-12-16 07:33:07,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:33:07,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:07,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:07,856 INFO L225 Difference]: With dead ends: 3136 [2023-12-16 07:33:07,856 INFO L226 Difference]: Without dead ends: 2637 [2023-12-16 07:33:07,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 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 07:33:07,857 INFO L413 NwaCegarLoop]: 4224 mSDtfsCounter, 2 mSDsluCounter, 8443 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12667 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:07,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12667 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:33:07,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2023-12-16 07:33:08,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2635. [2023-12-16 07:33:08,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 2589 states have (on average 1.760911548860564) internal successors, (4559), 2591 states have internal predecessors, (4559), 26 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:33:08,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 4611 transitions. [2023-12-16 07:33:08,030 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 4611 transitions. Word has length 101 [2023-12-16 07:33:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:08,030 INFO L495 AbstractCegarLoop]: Abstraction has 2635 states and 4611 transitions. [2023-12-16 07:33:08,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 4611 transitions. [2023-12-16 07:33:08,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:08,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:08,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:08,038 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 07:33:08,235 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 07:33:08,236 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:08,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:08,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1554370684, now seen corresponding path program 1 times [2023-12-16 07:33:08,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:08,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041095507] [2023-12-16 07:33:08,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:08,237 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:33:08,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:08,238 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 07:33:08,268 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 07:33:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:08,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:33:08,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:08,439 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 07:33:08,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:08,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:08,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041095507] [2023-12-16 07:33:08,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041095507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:08,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:08,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:08,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405381313] [2023-12-16 07:33:08,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:08,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:33:08,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:33:08,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:33:08,441 INFO L87 Difference]: Start difference. First operand 2635 states and 4611 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:08,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:08,902 INFO L93 Difference]: Finished difference Result 3664 states and 5904 transitions. [2023-12-16 07:33:08,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:33:08,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:08,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:08,908 INFO L225 Difference]: With dead ends: 3664 [2023-12-16 07:33:08,908 INFO L226 Difference]: Without dead ends: 3162 [2023-12-16 07:33:08,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 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 07:33:08,910 INFO L413 NwaCegarLoop]: 4148 mSDtfsCounter, 4388 mSDsluCounter, 8369 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4401 SdHoareTripleChecker+Valid, 12517 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:08,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4401 Valid, 12517 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:33:08,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2023-12-16 07:33:08,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3145. [2023-12-16 07:33:08,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 3059 states have (on average 1.6845374305328538) internal successors, (5153), 3062 states have internal predecessors, (5153), 47 states have call successors, (47), 36 states have call predecessors, (47), 37 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:33:08,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 5248 transitions. [2023-12-16 07:33:08,992 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 5248 transitions. Word has length 101 [2023-12-16 07:33:08,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:08,993 INFO L495 AbstractCegarLoop]: Abstraction has 3145 states and 5248 transitions. [2023-12-16 07:33:08,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:08,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 5248 transitions. [2023-12-16 07:33:08,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:08,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:08,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:09,000 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 07:33:09,199 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 07:33:09,200 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:09,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:09,200 INFO L85 PathProgramCache]: Analyzing trace with hash -2038996738, now seen corresponding path program 1 times [2023-12-16 07:33:09,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:09,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700756077] [2023-12-16 07:33:09,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:09,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:33:09,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:09,202 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 07:33:09,224 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 07:33:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:09,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:33:09,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:09,397 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 07:33:09,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:09,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:09,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700756077] [2023-12-16 07:33:09,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700756077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:09,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:09,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:09,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741636754] [2023-12-16 07:33:09,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:09,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:33:09,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:09,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:33:09,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:33:09,399 INFO L87 Difference]: Start difference. First operand 3145 states and 5248 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:09,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:09,807 INFO L93 Difference]: Finished difference Result 4289 states and 6701 transitions. [2023-12-16 07:33:09,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:33:09,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 101 [2023-12-16 07:33:09,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:09,814 INFO L225 Difference]: With dead ends: 4289 [2023-12-16 07:33:09,814 INFO L226 Difference]: Without dead ends: 3277 [2023-12-16 07:33:09,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 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 07:33:09,818 INFO L413 NwaCegarLoop]: 4126 mSDtfsCounter, 4356 mSDsluCounter, 8180 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4369 SdHoareTripleChecker+Valid, 12306 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:09,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4369 Valid, 12306 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:33:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2023-12-16 07:33:09,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 3209. [2023-12-16 07:33:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3209 states, 3121 states have (on average 1.6661326497917335) internal successors, (5200), 3124 states have internal predecessors, (5200), 47 states have call successors, (47), 38 states have call predecessors, (47), 39 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:33:09,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3209 states to 3209 states and 5295 transitions. [2023-12-16 07:33:09,914 INFO L78 Accepts]: Start accepts. Automaton has 3209 states and 5295 transitions. Word has length 101 [2023-12-16 07:33:09,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:09,914 INFO L495 AbstractCegarLoop]: Abstraction has 3209 states and 5295 transitions. [2023-12-16 07:33:09,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (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 07:33:09,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3209 states and 5295 transitions. [2023-12-16 07:33:09,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:33:09,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:09,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:09,919 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 (22)] Ended with exit code 0 [2023-12-16 07:33:10,119 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 07:33:10,119 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:10,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:10,120 INFO L85 PathProgramCache]: Analyzing trace with hash 450532224, now seen corresponding path program 1 times [2023-12-16 07:33:10,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:10,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26688556] [2023-12-16 07:33:10,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:10,120 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 07:33:10,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:10,121 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 07:33:10,146 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 07:33:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:10,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:33:10,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:10,310 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 07:33:10,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:10,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:10,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26688556] [2023-12-16 07:33:10,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [26688556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:10,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:10,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:33:10,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075934962] [2023-12-16 07:33:10,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:10,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:33:10,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:10,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:33:10,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:33:10,312 INFO L87 Difference]: Start difference. First operand 3209 states and 5295 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 07:33:10,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:10,479 INFO L93 Difference]: Finished difference Result 5330 states and 7920 transitions. [2023-12-16 07:33:10,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:33:10,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 101 [2023-12-16 07:33:10,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:10,488 INFO L225 Difference]: With dead ends: 5330 [2023-12-16 07:33:10,488 INFO L226 Difference]: Without dead ends: 4255 [2023-12-16 07:33:10,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 07:33:10,492 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 4139 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4139 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:10,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4139 Valid, 4495 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:33:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4255 states. [2023-12-16 07:33:10,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4255 to 4253. [2023-12-16 07:33:10,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4253 states, 4083 states have (on average 1.5603722752877787) internal successors, (6371), 4089 states have internal predecessors, (6371), 90 states have call successors, (90), 76 states have call predecessors, (90), 78 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2023-12-16 07:33:10,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 6553 transitions. [2023-12-16 07:33:10,592 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 6553 transitions. Word has length 101 [2023-12-16 07:33:10,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:10,592 INFO L495 AbstractCegarLoop]: Abstraction has 4253 states and 6553 transitions. [2023-12-16 07:33:10,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 07:33:10,592 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 6553 transitions. [2023-12-16 07:33:10,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 07:33:10,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:10,594 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:10,598 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 07:33:10,798 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 07:33:10,798 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:10,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash 5022187, now seen corresponding path program 1 times [2023-12-16 07:33:10,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:10,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16722965] [2023-12-16 07:33:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:10,799 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 07:33:10,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:10,800 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 07:33:10,812 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 07:33:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:10,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:33:10,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:33:11,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:11,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:11,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16722965] [2023-12-16 07:33:11,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16722965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:11,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:11,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:11,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160807827] [2023-12-16 07:33:11,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:11,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:11,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:11,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:11,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:11,096 INFO L87 Difference]: Start difference. First operand 4253 states and 6553 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (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 07:33:11,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:11,566 INFO L93 Difference]: Finished difference Result 8392 states and 11583 transitions. [2023-12-16 07:33:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:11,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (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 163 [2023-12-16 07:33:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:11,583 INFO L225 Difference]: With dead ends: 8392 [2023-12-16 07:33:11,584 INFO L226 Difference]: Without dead ends: 6274 [2023-12-16 07:33:11,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 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 07:33:11,589 INFO L413 NwaCegarLoop]: 4270 mSDtfsCounter, 4315 mSDsluCounter, 4370 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4320 SdHoareTripleChecker+Valid, 8640 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:11,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4320 Valid, 8640 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:33:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6274 states. [2023-12-16 07:33:11,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6274 to 6272. [2023-12-16 07:33:11,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6272 states, 5943 states have (on average 1.4512872286723877) internal successors, (8625), 5958 states have internal predecessors, (8625), 171 states have call successors, (171), 144 states have call predecessors, (171), 156 states have return successors, (195), 171 states have call predecessors, (195), 171 states have call successors, (195) [2023-12-16 07:33:11,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6272 states to 6272 states and 8991 transitions. [2023-12-16 07:33:11,760 INFO L78 Accepts]: Start accepts. Automaton has 6272 states and 8991 transitions. Word has length 163 [2023-12-16 07:33:11,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:11,761 INFO L495 AbstractCegarLoop]: Abstraction has 6272 states and 8991 transitions. [2023-12-16 07:33:11,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (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 07:33:11,761 INFO L276 IsEmpty]: Start isEmpty. Operand 6272 states and 8991 transitions. [2023-12-16 07:33:11,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 07:33:11,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:11,764 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:11,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-16 07:33:11,968 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 07:33:11,969 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:11,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:11,969 INFO L85 PathProgramCache]: Analyzing trace with hash 985977001, now seen corresponding path program 1 times [2023-12-16 07:33:11,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:11,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471911703] [2023-12-16 07:33:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:11,970 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 07:33:11,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:11,971 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 07:33:12,000 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 07:33:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:12,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:33:12,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:12,081 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:33:12,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:12,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:12,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471911703] [2023-12-16 07:33:12,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471911703] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:12,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:12,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:33:12,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067109219] [2023-12-16 07:33:12,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:12,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:33:12,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:12,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:33:12,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:33:12,083 INFO L87 Difference]: Start difference. First operand 6272 states and 8991 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (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 07:33:12,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:12,245 INFO L93 Difference]: Finished difference Result 10400 states and 13984 transitions. [2023-12-16 07:33:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:33:12,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (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 163 [2023-12-16 07:33:12,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:12,257 INFO L225 Difference]: With dead ends: 10400 [2023-12-16 07:33:12,257 INFO L226 Difference]: Without dead ends: 6263 [2023-12-16 07:33:12,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 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 07:33:12,265 INFO L413 NwaCegarLoop]: 4220 mSDtfsCounter, 283 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 8177 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:12,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 8177 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:33:12,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6263 states. [2023-12-16 07:33:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6263 to 6263. [2023-12-16 07:33:12,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6263 states, 5937 states have (on average 1.4509011285160855) internal successors, (8614), 5951 states have internal predecessors, (8614), 168 states have call successors, (168), 144 states have call predecessors, (168), 156 states have return successors, (192), 168 states have call predecessors, (192), 168 states have call successors, (192) [2023-12-16 07:33:12,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6263 states to 6263 states and 8974 transitions. [2023-12-16 07:33:12,439 INFO L78 Accepts]: Start accepts. Automaton has 6263 states and 8974 transitions. Word has length 163 [2023-12-16 07:33:12,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:12,439 INFO L495 AbstractCegarLoop]: Abstraction has 6263 states and 8974 transitions. [2023-12-16 07:33:12,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (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 07:33:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6263 states and 8974 transitions. [2023-12-16 07:33:12,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 07:33:12,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:12,443 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:12,447 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 07:33:12,647 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 07:33:12,648 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:12,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:12,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1867150448, now seen corresponding path program 1 times [2023-12-16 07:33:12,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:12,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289560173] [2023-12-16 07:33:12,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:12,649 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 07:33:12,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:12,650 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 07:33:12,680 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 07:33:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:12,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:33:12,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:33:12,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:12,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:12,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289560173] [2023-12-16 07:33:12,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289560173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:12,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:12,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:12,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149366020] [2023-12-16 07:33:12,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:12,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:12,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:12,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:12,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:12,973 INFO L87 Difference]: Start difference. First operand 6263 states and 8974 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (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 07:33:13,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:13,459 INFO L93 Difference]: Finished difference Result 14179 states and 18554 transitions. [2023-12-16 07:33:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:13,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (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 165 [2023-12-16 07:33:13,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:13,477 INFO L225 Difference]: With dead ends: 14179 [2023-12-16 07:33:13,477 INFO L226 Difference]: Without dead ends: 10051 [2023-12-16 07:33:13,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 163 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 07:33:13,487 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 4310 mSDsluCounter, 4352 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4315 SdHoareTripleChecker+Valid, 8606 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:13,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4315 Valid, 8606 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:33:13,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10051 states. [2023-12-16 07:33:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10051 to 10049. [2023-12-16 07:33:13,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10049 states, 9424 states have (on average 1.3614176570458405) internal successors, (12830), 9455 states have internal predecessors, (12830), 319 states have call successors, (319), 272 states have call predecessors, (319), 304 states have return successors, (387), 323 states have call predecessors, (387), 319 states have call successors, (387) [2023-12-16 07:33:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10049 states to 10049 states and 13536 transitions. [2023-12-16 07:33:13,792 INFO L78 Accepts]: Start accepts. Automaton has 10049 states and 13536 transitions. Word has length 165 [2023-12-16 07:33:13,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:13,793 INFO L495 AbstractCegarLoop]: Abstraction has 10049 states and 13536 transitions. [2023-12-16 07:33:13,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (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 07:33:13,793 INFO L276 IsEmpty]: Start isEmpty. Operand 10049 states and 13536 transitions. [2023-12-16 07:33:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 07:33:13,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:13,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:13,803 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 07:33:14,002 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 07:33:14,003 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:14,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:14,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2082988686, now seen corresponding path program 1 times [2023-12-16 07:33:14,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:14,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934413625] [2023-12-16 07:33:14,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:14,004 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 07:33:14,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:14,005 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 07:33:14,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 07:33:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:14,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:33:14,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:14,112 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:33:14,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:14,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:14,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934413625] [2023-12-16 07:33:14,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934413625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:14,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:14,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:33:14,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025832767] [2023-12-16 07:33:14,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:14,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:33:14,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:14,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:33:14,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:33:14,114 INFO L87 Difference]: Start difference. First operand 10049 states and 13536 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (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 07:33:14,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:14,476 INFO L93 Difference]: Finished difference Result 17955 states and 23077 transitions. [2023-12-16 07:33:14,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:33:14,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (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 165 [2023-12-16 07:33:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:14,492 INFO L225 Difference]: With dead ends: 17955 [2023-12-16 07:33:14,492 INFO L226 Difference]: Without dead ends: 10041 [2023-12-16 07:33:14,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 07:33:14,505 INFO L413 NwaCegarLoop]: 4219 mSDtfsCounter, 281 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 8176 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:14,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 8176 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:33:14,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2023-12-16 07:33:14,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 10041. [2023-12-16 07:33:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10041 states, 9419 states have (on average 1.3611848391548997) internal successors, (12821), 9449 states have internal predecessors, (12821), 316 states have call successors, (316), 272 states have call predecessors, (316), 304 states have return successors, (384), 320 states have call predecessors, (384), 316 states have call successors, (384) [2023-12-16 07:33:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10041 states to 10041 states and 13521 transitions. [2023-12-16 07:33:14,822 INFO L78 Accepts]: Start accepts. Automaton has 10041 states and 13521 transitions. Word has length 165 [2023-12-16 07:33:14,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:14,822 INFO L495 AbstractCegarLoop]: Abstraction has 10041 states and 13521 transitions. [2023-12-16 07:33:14,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (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 07:33:14,822 INFO L276 IsEmpty]: Start isEmpty. Operand 10041 states and 13521 transitions. [2023-12-16 07:33:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-16 07:33:14,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:14,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:14,833 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 07:33:15,033 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 07:33:15,033 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:15,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:15,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1994089899, now seen corresponding path program 1 times [2023-12-16 07:33:15,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:15,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017815354] [2023-12-16 07:33:15,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:15,034 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 07:33:15,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:15,035 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 07:33:15,036 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 07:33:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:15,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:33:15,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:15,376 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:33:15,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:15,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:15,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017815354] [2023-12-16 07:33:15,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017815354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:15,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:15,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:15,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507676276] [2023-12-16 07:33:15,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:15,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:15,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:15,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:15,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:15,379 INFO L87 Difference]: Start difference. First operand 10041 states and 13521 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (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 07:33:16,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:16,199 INFO L93 Difference]: Finished difference Result 25168 states and 31783 transitions. [2023-12-16 07:33:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:16,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (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 167 [2023-12-16 07:33:16,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:16,230 INFO L225 Difference]: With dead ends: 25168 [2023-12-16 07:33:16,230 INFO L226 Difference]: Without dead ends: 17262 [2023-12-16 07:33:16,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 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 07:33:16,246 INFO L413 NwaCegarLoop]: 4240 mSDtfsCounter, 4303 mSDsluCounter, 4334 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4309 SdHoareTripleChecker+Valid, 8574 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:16,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4309 Valid, 8574 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:33:16,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17262 states. [2023-12-16 07:33:16,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17262 to 17260. [2023-12-16 07:33:16,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17260 states, 16067 states have (on average 1.2975042011576523) internal successors, (20847), 16134 states have internal predecessors, (20847), 599 states have call successors, (599), 512 states have call predecessors, (599), 592 states have return successors, (763), 615 states have call predecessors, (763), 599 states have call successors, (763) [2023-12-16 07:33:16,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17260 states to 17260 states and 22209 transitions. [2023-12-16 07:33:16,985 INFO L78 Accepts]: Start accepts. Automaton has 17260 states and 22209 transitions. Word has length 167 [2023-12-16 07:33:16,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:16,985 INFO L495 AbstractCegarLoop]: Abstraction has 17260 states and 22209 transitions. [2023-12-16 07:33:16,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (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 07:33:16,986 INFO L276 IsEmpty]: Start isEmpty. Operand 17260 states and 22209 transitions. [2023-12-16 07:33:16,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-16 07:33:16,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:16,993 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:16,997 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 07:33:17,197 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 07:33:17,197 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:17,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:17,198 INFO L85 PathProgramCache]: Analyzing trace with hash -201138967, now seen corresponding path program 1 times [2023-12-16 07:33:17,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:17,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772595337] [2023-12-16 07:33:17,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:17,198 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 07:33:17,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:17,199 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 07:33:17,200 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 07:33:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:17,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:33:17,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:33:17,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:17,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:17,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772595337] [2023-12-16 07:33:17,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772595337] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:17,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:17,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:33:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943624149] [2023-12-16 07:33:17,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:17,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:33:17,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:33:17,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:33:17,316 INFO L87 Difference]: Start difference. First operand 17260 states and 22209 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (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 07:33:17,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:17,938 INFO L93 Difference]: Finished difference Result 32378 states and 40426 transitions. [2023-12-16 07:33:17,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:33:17,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (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 167 [2023-12-16 07:33:17,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:17,968 INFO L225 Difference]: With dead ends: 32378 [2023-12-16 07:33:17,969 INFO L226 Difference]: Without dead ends: 17253 [2023-12-16 07:33:17,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 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 07:33:17,992 INFO L413 NwaCegarLoop]: 4218 mSDtfsCounter, 279 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 8175 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:17,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 8175 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:33:18,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17253 states. [2023-12-16 07:33:18,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17253 to 17253. [2023-12-16 07:33:18,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17253 states, 16063 states have (on average 1.2973915208865094) internal successors, (20840), 16129 states have internal predecessors, (20840), 596 states have call successors, (596), 512 states have call predecessors, (596), 592 states have return successors, (760), 612 states have call predecessors, (760), 596 states have call successors, (760) [2023-12-16 07:33:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17253 states to 17253 states and 22196 transitions. [2023-12-16 07:33:18,695 INFO L78 Accepts]: Start accepts. Automaton has 17253 states and 22196 transitions. Word has length 167 [2023-12-16 07:33:18,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:18,695 INFO L495 AbstractCegarLoop]: Abstraction has 17253 states and 22196 transitions. [2023-12-16 07:33:18,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (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 07:33:18,695 INFO L276 IsEmpty]: Start isEmpty. Operand 17253 states and 22196 transitions. [2023-12-16 07:33:18,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 07:33:18,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:18,703 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:18,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 07:33:18,908 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 07:33:18,908 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:18,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:18,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1836511600, now seen corresponding path program 1 times [2023-12-16 07:33:18,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:18,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317820324] [2023-12-16 07:33:18,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:18,909 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 07:33:18,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:18,910 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 07:33:18,911 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 07:33:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:19,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:33:19,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:19,160 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:33:19,160 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:19,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:19,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317820324] [2023-12-16 07:33:19,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317820324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:19,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:19,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:19,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808366592] [2023-12-16 07:33:19,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:19,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:19,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:19,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:19,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:19,162 INFO L87 Difference]: Start difference. First operand 17253 states and 22196 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 4 states have call successors, (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 07:33:20,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:20,641 INFO L93 Difference]: Finished difference Result 49679 states and 61065 transitions. [2023-12-16 07:33:20,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:20,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 4 states have call successors, (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 169 [2023-12-16 07:33:20,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:20,696 INFO L225 Difference]: With dead ends: 49679 [2023-12-16 07:33:20,696 INFO L226 Difference]: Without dead ends: 34561 [2023-12-16 07:33:20,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 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 07:33:20,719 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 4306 mSDsluCounter, 4320 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4312 SdHoareTripleChecker+Valid, 8556 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:20,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4312 Valid, 8556 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:33:20,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34561 states. [2023-12-16 07:33:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34561 to 33919. [2023-12-16 07:33:22,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33919 states, 31286 states have (on average 1.24771463274308) internal successors, (39036), 31625 states have internal predecessors, (39036), 1127 states have call successors, (1127), 960 states have call predecessors, (1127), 1504 states have return successors, (1868), 1335 states have call predecessors, (1868), 1127 states have call successors, (1868) [2023-12-16 07:33:22,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33919 states to 33919 states and 42031 transitions. [2023-12-16 07:33:22,182 INFO L78 Accepts]: Start accepts. Automaton has 33919 states and 42031 transitions. Word has length 169 [2023-12-16 07:33:22,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:22,182 INFO L495 AbstractCegarLoop]: Abstraction has 33919 states and 42031 transitions. [2023-12-16 07:33:22,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 4 states have call successors, (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 07:33:22,182 INFO L276 IsEmpty]: Start isEmpty. Operand 33919 states and 42031 transitions. [2023-12-16 07:33:22,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 07:33:22,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:22,196 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:22,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 07:33:22,400 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 07:33:22,401 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:22,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:22,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1791073806, now seen corresponding path program 1 times [2023-12-16 07:33:22,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:22,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321962303] [2023-12-16 07:33:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:22,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:33:22,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:22,417 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:33:22,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 07:33:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:22,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:33:22,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:22,540 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:33:22,540 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:22,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:22,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321962303] [2023-12-16 07:33:22,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321962303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:22,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:22,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:33:22,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337990330] [2023-12-16 07:33:22,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:22,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:33:22,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:22,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:33:22,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:33:22,542 INFO L87 Difference]: Start difference. First operand 33919 states and 42031 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (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 07:33:23,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:23,636 INFO L93 Difference]: Finished difference Result 65698 states and 80074 transitions. [2023-12-16 07:33:23,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:33:23,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (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 169 [2023-12-16 07:33:23,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:23,807 INFO L225 Difference]: With dead ends: 65698 [2023-12-16 07:33:23,807 INFO L226 Difference]: Without dead ends: 33913 [2023-12-16 07:33:23,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 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 07:33:23,835 INFO L413 NwaCegarLoop]: 4217 mSDtfsCounter, 277 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 8174 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:23,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 8174 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:33:23,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33913 states. [2023-12-16 07:33:25,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33913 to 33913. [2023-12-16 07:33:25,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33913 states, 31283 states have (on average 1.247674455774702) internal successors, (39031), 31621 states have internal predecessors, (39031), 1124 states have call successors, (1124), 960 states have call predecessors, (1124), 1504 states have return successors, (1864), 1332 states have call predecessors, (1864), 1124 states have call successors, (1864) [2023-12-16 07:33:25,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33913 states to 33913 states and 42019 transitions. [2023-12-16 07:33:25,400 INFO L78 Accepts]: Start accepts. Automaton has 33913 states and 42019 transitions. Word has length 169 [2023-12-16 07:33:25,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:25,400 INFO L495 AbstractCegarLoop]: Abstraction has 33913 states and 42019 transitions. [2023-12-16 07:33:25,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (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 07:33:25,400 INFO L276 IsEmpty]: Start isEmpty. Operand 33913 states and 42019 transitions. [2023-12-16 07:33:25,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 07:33:25,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:25,412 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:25,418 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 (31)] Forceful destruction successful, exit code 0 [2023-12-16 07:33:25,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:33:25,615 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:25,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:25,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1134374549, now seen corresponding path program 1 times [2023-12-16 07:33:25,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:25,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483320608] [2023-12-16 07:33:25,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:25,616 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 07:33:25,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:25,617 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:33:25,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-16 07:33:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:25,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:33:25,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:33:25,864 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:25,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:25,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483320608] [2023-12-16 07:33:25,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483320608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:25,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:25,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:25,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159026306] [2023-12-16 07:33:25,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:25,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:25,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:25,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:25,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:25,865 INFO L87 Difference]: Start difference. First operand 33913 states and 42019 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (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 07:33:28,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:28,355 INFO L93 Difference]: Finished difference Result 93657 states and 113413 transitions. [2023-12-16 07:33:28,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:28,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (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 171 [2023-12-16 07:33:28,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:28,457 INFO L225 Difference]: With dead ends: 93657 [2023-12-16 07:33:28,457 INFO L226 Difference]: Without dead ends: 61879 [2023-12-16 07:33:28,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 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 07:33:28,480 INFO L413 NwaCegarLoop]: 4150 mSDtfsCounter, 4302 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4308 SdHoareTripleChecker+Valid, 8398 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:28,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4308 Valid, 8398 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:33:28,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61879 states. [2023-12-16 07:33:31,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61879 to 61877. [2023-12-16 07:33:31,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61877 states, 56879 states have (on average 1.2230700258443363) internal successors, (69567), 57553 states have internal predecessors, (69567), 2116 states have call successors, (2116), 1792 states have call predecessors, (2116), 2880 states have return successors, (3608), 2532 states have call predecessors, (3608), 2116 states have call successors, (3608) [2023-12-16 07:33:31,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61877 states to 61877 states and 75291 transitions. [2023-12-16 07:33:31,293 INFO L78 Accepts]: Start accepts. Automaton has 61877 states and 75291 transitions. Word has length 171 [2023-12-16 07:33:31,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:31,293 INFO L495 AbstractCegarLoop]: Abstraction has 61877 states and 75291 transitions. [2023-12-16 07:33:31,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (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 07:33:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 61877 states and 75291 transitions. [2023-12-16 07:33:31,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-16 07:33:31,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:31,315 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:31,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-16 07:33:31,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:33:31,519 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:31,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:31,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1586796944, now seen corresponding path program 1 times [2023-12-16 07:33:31,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:31,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048526405] [2023-12-16 07:33:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:31,520 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 07:33:31,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:31,521 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:33:31,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-16 07:33:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:31,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:33:31,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:33:31,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:31,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:31,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048526405] [2023-12-16 07:33:31,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048526405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:31,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:31,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:33:31,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384780006] [2023-12-16 07:33:31,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:31,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:33:31,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:31,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:33:31,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:33:31,772 INFO L87 Difference]: Start difference. First operand 61877 states and 75291 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (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 07:33:36,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:33:36,356 INFO L93 Difference]: Finished difference Result 173749 states and 208732 transitions. [2023-12-16 07:33:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:33:36,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (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 173 [2023-12-16 07:33:36,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:33:36,551 INFO L225 Difference]: With dead ends: 173749 [2023-12-16 07:33:36,551 INFO L226 Difference]: Without dead ends: 114007 [2023-12-16 07:33:36,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:33:36,591 INFO L413 NwaCegarLoop]: 4199 mSDtfsCounter, 4283 mSDsluCounter, 4281 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4289 SdHoareTripleChecker+Valid, 8480 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:36,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4289 Valid, 8480 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:33:36,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114007 states. [2023-12-16 07:33:41,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114007 to 114005. [2023-12-16 07:33:41,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114005 states, 104460 states have (on average 1.2087306145893164) internal successors, (126264), 105839 states have internal predecessors, (126264), 3975 states have call successors, (3975), 3328 states have call predecessors, (3975), 5568 states have return successors, (7035), 4839 states have call predecessors, (7035), 3975 states have call successors, (7035) [2023-12-16 07:33:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114005 states to 114005 states and 137274 transitions. [2023-12-16 07:33:41,520 INFO L78 Accepts]: Start accepts. Automaton has 114005 states and 137274 transitions. Word has length 173 [2023-12-16 07:33:41,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:33:41,521 INFO L495 AbstractCegarLoop]: Abstraction has 114005 states and 137274 transitions. [2023-12-16 07:33:41,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (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 07:33:41,521 INFO L276 IsEmpty]: Start isEmpty. Operand 114005 states and 137274 transitions. [2023-12-16 07:33:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-16 07:33:41,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:33:41,558 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:41,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2023-12-16 07:33:41,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:33:41,759 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:33:41,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:33:41,759 INFO L85 PathProgramCache]: Analyzing trace with hash -182927758, now seen corresponding path program 1 times [2023-12-16 07:33:41,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:33:41,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347360141] [2023-12-16 07:33:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:33:41,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:33:41,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:33:41,761 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:33:41,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-16 07:33:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:33:41,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:33:41,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:33:41,878 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 07:33:41,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:33:41,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:33:41,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347360141] [2023-12-16 07:33:41,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347360141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:33:41,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:33:41,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:33:41,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674055397] [2023-12-16 07:33:41,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:33:41,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:33:41,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:33:41,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:33:41,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:33:41,880 INFO L87 Difference]: Start difference. First operand 114005 states and 137274 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (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) Received shutdown request... [2023-12-16 07:33:44,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:33:44,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 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 07:33:44,671 INFO L413 NwaCegarLoop]: 4215 mSDtfsCounter, 273 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 8172 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:33:44,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 8172 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:33:44,671 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:33:44,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-16 07:33:44,700 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 07:33:44,700 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:33:44,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:33:44,873 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (114005states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (140427 states constructed, input type IntersectNwa). [2023-12-16 07:33:44,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:33:44,876 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:33:44,877 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:33:44,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:33:44 BoogieIcfgContainer [2023-12-16 07:33:44,879 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:33:44,879 INFO L158 Benchmark]: Toolchain (without parser) took 60423.41ms. Allocated memory was 288.4MB in the beginning and 6.6GB in the end (delta: 6.3GB). Free memory was 198.3MB in the beginning and 5.0GB in the end (delta: -4.8GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2023-12-16 07:33:44,879 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 199.2MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:33:44,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2333.21ms. Allocated memory was 288.4MB in the beginning and 470.8MB in the end (delta: 182.5MB). Free memory was 197.8MB in the beginning and 307.0MB in the end (delta: -109.2MB). Peak memory consumption was 157.6MB. Max. memory is 8.0GB. [2023-12-16 07:33:44,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 406.56ms. Allocated memory is still 470.8MB. Free memory was 307.0MB in the beginning and 321.2MB in the end (delta: -14.2MB). Peak memory consumption was 93.3MB. Max. memory is 8.0GB. [2023-12-16 07:33:44,879 INFO L158 Benchmark]: Boogie Preprocessor took 405.21ms. Allocated memory is still 470.8MB. Free memory was 321.2MB in the beginning and 284.0MB in the end (delta: 37.2MB). Peak memory consumption was 67.6MB. Max. memory is 8.0GB. [2023-12-16 07:33:44,880 INFO L158 Benchmark]: RCFGBuilder took 7973.89ms. Allocated memory was 470.8MB in the beginning and 1.3GB in the end (delta: 834.7MB). Free memory was 284.0MB in the beginning and 1.0GB in the end (delta: -758.6MB). Peak memory consumption was 786.4MB. Max. memory is 8.0GB. [2023-12-16 07:33:44,880 INFO L158 Benchmark]: TraceAbstraction took 49298.20ms. Allocated memory was 1.3GB in the beginning and 6.6GB in the end (delta: 5.3GB). Free memory was 1.0GB in the beginning and 5.0GB in the end (delta: -4.0GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-16 07:33:44,883 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 199.2MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2333.21ms. Allocated memory was 288.4MB in the beginning and 470.8MB in the end (delta: 182.5MB). Free memory was 197.8MB in the beginning and 307.0MB in the end (delta: -109.2MB). Peak memory consumption was 157.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 406.56ms. Allocated memory is still 470.8MB. Free memory was 307.0MB in the beginning and 321.2MB in the end (delta: -14.2MB). Peak memory consumption was 93.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 405.21ms. Allocated memory is still 470.8MB. Free memory was 321.2MB in the beginning and 284.0MB in the end (delta: 37.2MB). Peak memory consumption was 67.6MB. Max. memory is 8.0GB. * RCFGBuilder took 7973.89ms. Allocated memory was 470.8MB in the beginning and 1.3GB in the end (delta: 834.7MB). Free memory was 284.0MB in the beginning and 1.0GB in the end (delta: -758.6MB). Peak memory consumption was 786.4MB. Max. memory is 8.0GB. * TraceAbstraction took 49298.20ms. Allocated memory was 1.3GB in the beginning and 6.6GB in the end (delta: 5.3GB). Free memory was 1.0GB in the beginning and 5.0GB in the end (delta: -4.0GB). Peak memory consumption was 2.5GB. 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 (114005states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (140427 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 11133]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11133). Cancelled while NwaCegarLoop was constructing difference of abstraction (114005states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (140427 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2333 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 49.2s, OverallIterations: 33, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93420 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93192 mSDsluCounter, 353860 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 215552 mSDsCounter, 705 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7253 IncrementalHoareTripleChecker+Invalid, 7958 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 705 mSolverCounterUnsat, 138308 mSDtfsCounter, 7253 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4062 GetRequests, 3967 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114005occurred in iteration=32, InterpolantAutomatonStates: 138, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.6s AutomataMinimizationTime, 32 MinimizatonAttempts, 1057 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 4067 NumberOfCodeBlocks, 4067 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 4034 ConstructedInterpolants, 0 QuantifiedInterpolants, 7106 SizeOfPredicates, 6 NumberOfNonLiveVariables, 10188 ConjunctsInSsa, 146 ConjunctsInUnsatCore, 33 InterpolantComputations, 33 PerfectInterpolantSequences, 528/528 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown