/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/square_8+soft_float_3a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 03:16:21,856 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 03:16:21,920 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 03:16:21,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 03:16:21,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 03:16:21,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 03:16:21,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 03:16:21,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 03:16:21,948 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 03:16:21,951 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 03:16:21,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 03:16:21,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 03:16:21,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 03:16:21,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 03:16:21,953 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 03:16:21,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 03:16:21,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 03:16:21,953 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 03:16:21,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 03:16:21,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 03:16:21,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 03:16:21,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 03:16:21,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 03:16:21,954 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 03:16:21,955 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 03:16:21,955 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 03:16:21,955 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 03:16:21,955 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 03:16:21,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 03:16:21,955 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 03:16:21,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 03:16:21,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 03:16:21,956 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 03:16:21,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 03:16:21,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 03:16:21,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 03:16:21,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 03:16:21,957 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 03:16:21,957 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 03:16:21,957 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 03:16:21,957 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 03:16:21,958 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 03:16:21,958 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 03:16:21,958 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 03:16:21,958 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 03:16:21,958 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 03:16:21,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 03:16:22,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 03:16:22,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 03:16:22,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 03:16:22,173 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 03:16:22,173 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 03:16:22,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_8+soft_float_3a.c.cil.c [2023-12-22 03:16:23,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 03:16:23,327 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 03:16:23,328 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_3a.c.cil.c [2023-12-22 03:16:23,334 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eee6a995f/4f57069f485f4a708c85bfbf1b8d1ead/FLAG8c8486a84 [2023-12-22 03:16:23,343 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eee6a995f/4f57069f485f4a708c85bfbf1b8d1ead [2023-12-22 03:16:23,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 03:16:23,346 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 03:16:23,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 03:16:23,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 03:16:23,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 03:16:23,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c2e6aee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23, skipping insertion in model container [2023-12-22 03:16:23,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,370 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 03:16:23,472 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/square_8+soft_float_3a.c.cil.c[1995,2008] [2023-12-22 03:16:23,480 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/square_8+soft_float_3a.c.cil.c[2364,2377] [2023-12-22 03:16:23,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 03:16:23,528 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 03:16:23,538 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/square_8+soft_float_3a.c.cil.c[1995,2008] [2023-12-22 03:16:23,539 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/square_8+soft_float_3a.c.cil.c[2364,2377] [2023-12-22 03:16:23,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 03:16:23,564 INFO L206 MainTranslator]: Completed translation [2023-12-22 03:16:23,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23 WrapperNode [2023-12-22 03:16:23,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 03:16:23,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 03:16:23,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 03:16:23,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 03:16:23,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,591 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2023-12-22 03:16:23,592 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 03:16:23,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 03:16:23,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 03:16:23,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 03:16:23,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,609 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,625 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]. [2023-12-22 03:16:23,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 03:16:23,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 03:16:23,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 03:16:23,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 03:16:23,651 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (1/1) ... [2023-12-22 03:16:23,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 03:16:23,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 03:16:23,734 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) [2023-12-22 03:16:23,764 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 [2023-12-22 03:16:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 03:16:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 03:16:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-12-22 03:16:23,782 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-12-22 03:16:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 03:16:23,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 03:16:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-22 03:16:23,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-22 03:16:23,857 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 03:16:23,859 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 03:16:28,364 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 03:16:28,381 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 03:16:28,381 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 03:16:28,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:16:28 BoogieIcfgContainer [2023-12-22 03:16:28,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 03:16:28,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 03:16:28,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 03:16:28,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 03:16:28,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:16:23" (1/3) ... [2023-12-22 03:16:28,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f3a6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:16:28, skipping insertion in model container [2023-12-22 03:16:28,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:23" (2/3) ... [2023-12-22 03:16:28,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f3a6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:16:28, skipping insertion in model container [2023-12-22 03:16:28,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:16:28" (3/3) ... [2023-12-22 03:16:28,387 INFO L112 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_3a.c.cil.c [2023-12-22 03:16:28,399 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 03:16:28,399 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 03:16:28,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 03:16:28,434 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;@1218db34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 03:16:28,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 03:16:28,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 47 states have internal predecessors, (72), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-22 03:16:28,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-22 03:16:28,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:16:28,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-22 03:16:28,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:16:28,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:16:28,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1825724097, now seen corresponding path program 1 times [2023-12-22 03:16:28,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:16:28,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685329591] [2023-12-22 03:16:28,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:16:28,454 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 [2023-12-22 03:16:28,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:16:28,456 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) [2023-12-22 03:16:28,498 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 [2023-12-22 03:16:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:16:28,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 03:16:28,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:16:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 03:16:28,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:16:28,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:16:28,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685329591] [2023-12-22 03:16:28,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685329591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:16:28,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:16:28,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 03:16:28,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288409261] [2023-12-22 03:16:28,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:16:28,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 03:16:28,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:16:28,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 03:16:28,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 03:16:28,948 INFO L87 Difference]: Start difference. First operand has 54 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 47 states have internal predecessors, (72), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:16:28,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:16:28,997 INFO L93 Difference]: Finished difference Result 104 states and 162 transitions. [2023-12-22 03:16:28,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 03:16:28,999 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-12-22 03:16:28,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:16:29,003 INFO L225 Difference]: With dead ends: 104 [2023-12-22 03:16:29,003 INFO L226 Difference]: Without dead ends: 48 [2023-12-22 03:16:29,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 03:16:29,008 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 03:16:29,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 03:16:29,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-22 03:16:29,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-22 03:16:29,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.45) internal successors, (58), 41 states have internal predecessors, (58), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-22 03:16:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2023-12-22 03:16:29,033 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 6 [2023-12-22 03:16:29,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:16:29,034 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2023-12-22 03:16:29,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:16:29,034 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2023-12-22 03:16:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-22 03:16:29,035 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:16:29,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-22 03:16:29,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 03:16:29,249 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 [2023-12-22 03:16:29,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:16:29,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:16:29,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1825664515, now seen corresponding path program 1 times [2023-12-22 03:16:29,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:16:29,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686802758] [2023-12-22 03:16:29,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:16:29,256 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 [2023-12-22 03:16:29,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:16:29,257 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) [2023-12-22 03:16:29,259 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 [2023-12-22 03:17:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:17:25,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 03:17:25,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:17:34,539 WARN L293 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 03:17:41,986 WARN L293 SmtUtils]: Spent 7.45s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 03:17:48,231 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) |c_ULTIMATE.start_main1_~result~0#1|) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2023-12-22 03:18:04,625 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 03:18:12,963 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 03:18:21,298 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 03:18:33,732 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 03:18:41,943 WARN L293 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 03:18:50,312 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 03:18:54,497 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))) (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (_ +zero 8 24))) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))))) is different from false [2023-12-22 03:18:58,564 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))) (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (_ +zero 8 24))) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))))) is different from true [2023-12-22 03:18:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 03:18:58,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:18:58,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:18:58,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686802758] [2023-12-22 03:18:58,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686802758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:18:58,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:18:58,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 03:18:58,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970426830] [2023-12-22 03:18:58,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:18:58,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 03:18:58,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:18:58,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 03:18:58,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=12, Unknown=3, NotChecked=14, Total=42 [2023-12-22 03:18:58,568 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:19:03,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 03:19:07,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 03:19:11,238 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) |c_ULTIMATE.start_main1_~result~0#1|) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)))) (fp.lt |c_ULTIMATE.start_main1_~IN~0#1| .cse0) (fp.geq |c_ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-12-22 03:19:11,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:11,482 INFO L93 Difference]: Finished difference Result 48 states and 67 transitions. [2023-12-22 03:19:11,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 03:19:11,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-12-22 03:19:11,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:11,483 INFO L225 Difference]: With dead ends: 48 [2023-12-22 03:19:11,483 INFO L226 Difference]: Without dead ends: 43 [2023-12-22 03:19:11,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=20, Invalid=18, Unknown=4, NotChecked=30, Total=72 [2023-12-22 03:19:11,485 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 63 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 134 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:11,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 159 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 2 Unknown, 134 Unchecked, 8.6s Time] [2023-12-22 03:19:11,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-22 03:19:11,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-12-22 03:19:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 36 states have internal predecessors, (53), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-22 03:19:11,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 62 transitions. [2023-12-22 03:19:11,490 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 62 transitions. Word has length 6 [2023-12-22 03:19:11,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:11,490 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 62 transitions. [2023-12-22 03:19:11,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:19:11,490 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2023-12-22 03:19:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-22 03:19:11,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:11,491 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:19:11,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 03:19:11,692 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 [2023-12-22 03:19:11,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:11,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:11,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1555454217, now seen corresponding path program 1 times [2023-12-22 03:19:11,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:11,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437106578] [2023-12-22 03:19:11,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:19:11,694 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 [2023-12-22 03:19:11,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:11,695 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) [2023-12-22 03:19:11,696 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 (4)] Waiting until timeout for monitored process [2023-12-22 03:19:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:19:11,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:19:11,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:19:12,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:19:12,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:12,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437106578] [2023-12-22 03:19:12,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1437106578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:19:12,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:19:12,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 03:19:12,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156835870] [2023-12-22 03:19:12,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:19:12,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:19:12,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:12,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:19:12,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:19:12,002 INFO L87 Difference]: Start difference. First operand 43 states and 62 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:19:12,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:12,525 INFO L93 Difference]: Finished difference Result 95 states and 141 transitions. [2023-12-22 03:19:12,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 03:19:12,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-12-22 03:19:12,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:12,527 INFO L225 Difference]: With dead ends: 95 [2023-12-22 03:19:12,528 INFO L226 Difference]: Without dead ends: 55 [2023-12-22 03:19:12,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:19:12,529 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 14 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:12,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 125 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 03:19:12,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-22 03:19:12,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2023-12-22 03:19:12,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.435897435897436) internal successors, (56), 39 states have internal predecessors, (56), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-22 03:19:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2023-12-22 03:19:12,539 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 36 [2023-12-22 03:19:12,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:12,540 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2023-12-22 03:19:12,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:19:12,540 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2023-12-22 03:19:12,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-22 03:19:12,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:12,541 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:19:12,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 03:19:12,753 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 [2023-12-22 03:19:12,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:12,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:12,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1540474015, now seen corresponding path program 1 times [2023-12-22 03:19:12,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:12,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217687280] [2023-12-22 03:19:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:19:12,754 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 [2023-12-22 03:19:12,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:12,756 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) [2023-12-22 03:19:12,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 03:19:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:19:12,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:19:12,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:13,033 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:19:13,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:19:13,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217687280] [2023-12-22 03:19:13,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217687280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:19:13,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:19:13,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 03:19:13,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750303176] [2023-12-22 03:19:13,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:19:13,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:19:13,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:13,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:19:13,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:19:13,034 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:19:13,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:13,542 INFO L93 Difference]: Finished difference Result 97 states and 142 transitions. [2023-12-22 03:19:13,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:19:13,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2023-12-22 03:19:13,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:13,544 INFO L225 Difference]: With dead ends: 97 [2023-12-22 03:19:13,544 INFO L226 Difference]: Without dead ends: 57 [2023-12-22 03:19:13,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:19:13,546 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:13,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 137 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 03:19:13,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-12-22 03:19:13,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2023-12-22 03:19:13,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 03:19:13,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2023-12-22 03:19:13,552 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 39 [2023-12-22 03:19:13,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:13,552 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2023-12-22 03:19:13,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:19:13,553 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2023-12-22 03:19:13,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-22 03:19:13,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:13,553 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:19:13,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 03:19:13,759 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 [2023-12-22 03:19:13,759 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:13,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:13,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2118278156, now seen corresponding path program 1 times [2023-12-22 03:19:13,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:13,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369525449] [2023-12-22 03:19:13,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:19:13,760 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 [2023-12-22 03:19:13,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:13,762 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) [2023-12-22 03:19:13,763 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 [2023-12-22 03:19:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:19:13,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:19:13,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:14,025 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:19:14,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:19:14,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:14,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369525449] [2023-12-22 03:19:14,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369525449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:19:14,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:19:14,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 03:19:14,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146337730] [2023-12-22 03:19:14,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:19:14,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:19:14,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:14,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:19:14,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:19:14,027 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:19:14,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:14,584 INFO L93 Difference]: Finished difference Result 104 states and 152 transitions. [2023-12-22 03:19:14,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 03:19:14,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-12-22 03:19:14,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:14,586 INFO L225 Difference]: With dead ends: 104 [2023-12-22 03:19:14,586 INFO L226 Difference]: Without dead ends: 60 [2023-12-22 03:19:14,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:19:14,587 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 16 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:14,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 128 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 03:19:14,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-22 03:19:14,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2023-12-22 03:19:14,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 03:19:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2023-12-22 03:19:14,592 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 74 transitions. Word has length 40 [2023-12-22 03:19:14,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:14,592 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 74 transitions. [2023-12-22 03:19:14,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:19:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 74 transitions. [2023-12-22 03:19:14,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-22 03:19:14,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:14,594 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:19:14,602 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 [2023-12-22 03:19:14,797 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 [2023-12-22 03:19:14,798 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:14,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:14,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1070392928, now seen corresponding path program 1 times [2023-12-22 03:19:14,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:14,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482336705] [2023-12-22 03:19:14,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:19:14,799 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 [2023-12-22 03:19:14,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:14,800 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) [2023-12-22 03:19:14,815 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 [2023-12-22 03:19:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:19:14,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 03:19:14,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:15,134 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:19:15,134 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:19:15,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:15,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482336705] [2023-12-22 03:19:15,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482336705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:19:15,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:19:15,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 03:19:15,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234122304] [2023-12-22 03:19:15,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:19:15,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 03:19:15,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:15,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 03:19:15,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:19:15,136 INFO L87 Difference]: Start difference. First operand 52 states and 74 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:19:16,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:16,075 INFO L93 Difference]: Finished difference Result 111 states and 162 transitions. [2023-12-22 03:19:16,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 03:19:16,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-12-22 03:19:16,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:16,079 INFO L225 Difference]: With dead ends: 111 [2023-12-22 03:19:16,079 INFO L226 Difference]: Without dead ends: 66 [2023-12-22 03:19:16,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 03:19:16,085 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 15 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:16,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 166 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 03:19:16,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-22 03:19:16,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 53. [2023-12-22 03:19:16,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 45 states have internal predecessors, (63), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 03:19:16,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2023-12-22 03:19:16,096 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 41 [2023-12-22 03:19:16,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:16,096 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2023-12-22 03:19:16,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:19:16,096 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2023-12-22 03:19:16,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-22 03:19:16,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:16,097 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2023-12-22 03:19:16,121 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 [2023-12-22 03:19:16,301 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 [2023-12-22 03:19:16,301 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:16,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:16,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1793957559, now seen corresponding path program 1 times [2023-12-22 03:19:16,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:16,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330357934] [2023-12-22 03:19:16,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:19:16,302 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 [2023-12-22 03:19:16,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:16,308 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) [2023-12-22 03:19:16,310 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 [2023-12-22 03:19:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:19:16,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 03:19:16,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:19:16,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:19:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-22 03:19:17,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:17,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330357934] [2023-12-22 03:19:17,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330357934] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:19:17,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:19:17,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-22 03:19:17,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761392802] [2023-12-22 03:19:17,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:19:17,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 03:19:17,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:17,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 03:19:17,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-22 03:19:17,408 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:19:18,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:18,432 INFO L93 Difference]: Finished difference Result 128 states and 190 transitions. [2023-12-22 03:19:18,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 03:19:18,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-12-22 03:19:18,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:18,434 INFO L225 Difference]: With dead ends: 128 [2023-12-22 03:19:18,434 INFO L226 Difference]: Without dead ends: 82 [2023-12-22 03:19:18,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-22 03:19:18,435 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 52 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:18,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 154 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 03:19:18,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-12-22 03:19:18,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 61. [2023-12-22 03:19:18,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 53 states have internal predecessors, (76), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 03:19:18,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions. [2023-12-22 03:19:18,442 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 42 [2023-12-22 03:19:18,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:18,442 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 89 transitions. [2023-12-22 03:19:18,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:19:18,442 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2023-12-22 03:19:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-22 03:19:18,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:18,443 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2023-12-22 03:19:18,446 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 [2023-12-22 03:19:18,646 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 [2023-12-22 03:19:18,646 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:18,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:18,647 INFO L85 PathProgramCache]: Analyzing trace with hash -727253130, now seen corresponding path program 1 times [2023-12-22 03:19:18,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:18,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80714126] [2023-12-22 03:19:18,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:19:18,648 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 [2023-12-22 03:19:18,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:18,649 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) [2023-12-22 03:19:18,650 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 [2023-12-22 03:19:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:19:18,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 03:19:18,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:19:19,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:19:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-22 03:19:19,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:19,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80714126] [2023-12-22 03:19:19,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80714126] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:19:19,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:19:19,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-22 03:19:19,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283455657] [2023-12-22 03:19:19,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:19:19,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 03:19:19,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:19,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 03:19:19,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-22 03:19:19,987 INFO L87 Difference]: Start difference. First operand 61 states and 89 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:19:22,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:22,050 INFO L93 Difference]: Finished difference Result 144 states and 216 transitions. [2023-12-22 03:19:22,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 03:19:22,051 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 44 [2023-12-22 03:19:22,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:22,052 INFO L225 Difference]: With dead ends: 144 [2023-12-22 03:19:22,052 INFO L226 Difference]: Without dead ends: 90 [2023-12-22 03:19:22,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-12-22 03:19:22,053 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 108 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:22,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 188 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-22 03:19:22,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-22 03:19:22,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 65. [2023-12-22 03:19:22,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 57 states have internal predecessors, (83), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 03:19:22,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 96 transitions. [2023-12-22 03:19:22,062 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 96 transitions. Word has length 44 [2023-12-22 03:19:22,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:22,062 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 96 transitions. [2023-12-22 03:19:22,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:19:22,062 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 96 transitions. [2023-12-22 03:19:22,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-22 03:19:22,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:22,063 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:19:22,071 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 [2023-12-22 03:19:22,279 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 [2023-12-22 03:19:22,279 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:22,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:22,279 INFO L85 PathProgramCache]: Analyzing trace with hash 105085921, now seen corresponding path program 2 times [2023-12-22 03:19:22,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:22,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082667701] [2023-12-22 03:19:22,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 03:19:22,280 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 [2023-12-22 03:19:22,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:22,281 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) [2023-12-22 03:19:22,282 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 [2023-12-22 03:19:22,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 03:19:22,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 03:19:22,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 03:19:22,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-22 03:19:22,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:19:22,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:22,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082667701] [2023-12-22 03:19:22,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082667701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:19:22,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:19:22,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 03:19:22,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234068764] [2023-12-22 03:19:22,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:19:22,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 03:19:22,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:22,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 03:19:22,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 03:19:22,646 INFO L87 Difference]: Start difference. First operand 65 states and 96 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:19:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:23,077 INFO L93 Difference]: Finished difference Result 93 states and 138 transitions. [2023-12-22 03:19:23,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 03:19:23,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 51 [2023-12-22 03:19:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:23,078 INFO L225 Difference]: With dead ends: 93 [2023-12-22 03:19:23,078 INFO L226 Difference]: Without dead ends: 73 [2023-12-22 03:19:23,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-22 03:19:23,079 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 3 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:23,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 272 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 03:19:23,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-22 03:19:23,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2023-12-22 03:19:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 63 states have internal predecessors, (88), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-22 03:19:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2023-12-22 03:19:23,089 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 51 [2023-12-22 03:19:23,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:23,089 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2023-12-22 03:19:23,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:19:23,089 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2023-12-22 03:19:23,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-22 03:19:23,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:23,091 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:19:23,100 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 [2023-12-22 03:19:23,294 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 [2023-12-22 03:19:23,294 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:23,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:23,295 INFO L85 PathProgramCache]: Analyzing trace with hash -287941089, now seen corresponding path program 1 times [2023-12-22 03:19:23,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:23,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227025248] [2023-12-22 03:19:23,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:19:23,295 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 [2023-12-22 03:19:23,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:23,296 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) [2023-12-22 03:19:23,304 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 [2023-12-22 03:19:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:19:23,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 03:19:23,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:24,103 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:19:24,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:19:25,728 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-22 03:19:25,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:25,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227025248] [2023-12-22 03:19:25,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227025248] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:19:25,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:19:25,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-22 03:19:25,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933667871] [2023-12-22 03:19:25,729 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:19:25,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-22 03:19:25,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:25,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-22 03:19:25,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-12-22 03:19:25,730 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:19:29,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:29,881 INFO L93 Difference]: Finished difference Result 193 states and 290 transitions. [2023-12-22 03:19:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-22 03:19:29,882 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 51 [2023-12-22 03:19:29,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:29,885 INFO L225 Difference]: With dead ends: 193 [2023-12-22 03:19:29,885 INFO L226 Difference]: Without dead ends: 128 [2023-12-22 03:19:29,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=183, Invalid=323, Unknown=0, NotChecked=0, Total=506 [2023-12-22 03:19:29,886 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 111 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:29,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 353 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-22 03:19:29,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-22 03:19:29,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 86. [2023-12-22 03:19:29,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.48) internal successors, (111), 77 states have internal predecessors, (111), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-22 03:19:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 129 transitions. [2023-12-22 03:19:29,909 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 129 transitions. Word has length 51 [2023-12-22 03:19:29,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:29,909 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 129 transitions. [2023-12-22 03:19:29,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:19:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 129 transitions. [2023-12-22 03:19:29,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-22 03:19:29,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:29,910 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:19:29,924 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 (11)] Ended with exit code 0 [2023-12-22 03:19:30,110 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 [2023-12-22 03:19:30,111 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:30,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:30,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1893265716, now seen corresponding path program 1 times [2023-12-22 03:19:30,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:30,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052206353] [2023-12-22 03:19:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:19:30,112 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 [2023-12-22 03:19:30,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:30,129 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) [2023-12-22 03:19:30,156 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 [2023-12-22 03:19:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:19:30,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 03:19:30,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 19 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:19:31,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:19:33,455 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-22 03:19:33,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:33,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052206353] [2023-12-22 03:19:33,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052206353] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:19:33,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:19:33,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-12-22 03:19:33,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533982451] [2023-12-22 03:19:33,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:19:33,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-22 03:19:33,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:33,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-22 03:19:33,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-22 03:19:33,457 INFO L87 Difference]: Start difference. First operand 86 states and 129 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:19:39,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:39,312 INFO L93 Difference]: Finished difference Result 216 states and 328 transitions. [2023-12-22 03:19:39,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-22 03:19:39,312 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2023-12-22 03:19:39,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:39,313 INFO L225 Difference]: With dead ends: 216 [2023-12-22 03:19:39,313 INFO L226 Difference]: Without dead ends: 137 [2023-12-22 03:19:39,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=354, Invalid=638, Unknown=0, NotChecked=0, Total=992 [2023-12-22 03:19:39,314 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 243 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:39,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 440 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-22 03:19:39,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-22 03:19:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 96. [2023-12-22 03:19:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.5058823529411764) internal successors, (128), 87 states have internal predecessors, (128), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-22 03:19:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 146 transitions. [2023-12-22 03:19:39,324 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 146 transitions. Word has length 56 [2023-12-22 03:19:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:39,324 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 146 transitions. [2023-12-22 03:19:39,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:19:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 146 transitions. [2023-12-22 03:19:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-22 03:19:39,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:39,325 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:19:39,338 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 [2023-12-22 03:19:39,529 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 [2023-12-22 03:19:39,529 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:39,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:39,529 INFO L85 PathProgramCache]: Analyzing trace with hash -498968865, now seen corresponding path program 2 times [2023-12-22 03:19:39,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:39,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627376304] [2023-12-22 03:19:39,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 03:19:39,530 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 [2023-12-22 03:19:39,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:39,531 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) [2023-12-22 03:19:39,532 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 [2023-12-22 03:19:39,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 03:19:39,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 03:19:39,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:19:39,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:39,613 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-12-22 03:19:39,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:19:39,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:39,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627376304] [2023-12-22 03:19:39,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627376304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:19:39,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:19:39,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:19:39,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796464868] [2023-12-22 03:19:39,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:19:39,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:19:39,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:39,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:19:39,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:19:39,614 INFO L87 Difference]: Start difference. First operand 96 states and 146 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:19:39,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:19:39,691 INFO L93 Difference]: Finished difference Result 105 states and 156 transitions. [2023-12-22 03:19:39,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:19:39,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2023-12-22 03:19:39,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:19:39,693 INFO L225 Difference]: With dead ends: 105 [2023-12-22 03:19:39,693 INFO L226 Difference]: Without dead ends: 96 [2023-12-22 03:19:39,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:19:39,693 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 03:19:39,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 03:19:39,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-22 03:19:39,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-22 03:19:39,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.4941176470588236) internal successors, (127), 87 states have internal predecessors, (127), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-22 03:19:39,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 145 transitions. [2023-12-22 03:19:39,701 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 145 transitions. Word has length 69 [2023-12-22 03:19:39,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:19:39,701 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 145 transitions. [2023-12-22 03:19:39,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:19:39,701 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 145 transitions. [2023-12-22 03:19:39,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-22 03:19:39,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:19:39,702 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:19:39,710 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 (13)] Forceful destruction successful, exit code 0 [2023-12-22 03:19:39,902 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 [2023-12-22 03:19:39,902 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:19:39,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:19:39,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2017792795, now seen corresponding path program 1 times [2023-12-22 03:19:39,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:19:39,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162913980] [2023-12-22 03:19:39,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:19:39,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:19:39,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:19:39,904 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) [2023-12-22 03:19:39,905 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 [2023-12-22 03:19:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:19:39,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 03:19:39,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:19:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 19 proven. 155 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:19:42,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:19:46,546 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 3 proven. 161 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-22 03:19:46,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:19:46,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162913980] [2023-12-22 03:19:46,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162913980] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:19:46,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:19:46,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-12-22 03:19:46,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667135630] [2023-12-22 03:19:46,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:19:46,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 03:19:46,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:19:46,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 03:19:46,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-12-22 03:19:46,548 INFO L87 Difference]: Start difference. First operand 96 states and 145 transitions. Second operand has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:20:05,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:20:05,203 INFO L93 Difference]: Finished difference Result 301 states and 458 transitions. [2023-12-22 03:20:05,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-22 03:20:05,205 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2023-12-22 03:20:05,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:20:05,206 INFO L225 Difference]: With dead ends: 301 [2023-12-22 03:20:05,206 INFO L226 Difference]: Without dead ends: 212 [2023-12-22 03:20:05,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=729, Invalid=1433, Unknown=0, NotChecked=0, Total=2162 [2023-12-22 03:20:05,207 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 356 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-22 03:20:05,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1045 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2023-12-22 03:20:05,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-12-22 03:20:05,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 122. [2023-12-22 03:20:05,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 111 states have (on average 1.5315315315315314) internal successors, (170), 113 states have internal predecessors, (170), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-22 03:20:05,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 188 transitions. [2023-12-22 03:20:05,223 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 188 transitions. Word has length 71 [2023-12-22 03:20:05,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:20:05,223 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 188 transitions. [2023-12-22 03:20:05,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:20:05,223 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 188 transitions. [2023-12-22 03:20:05,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-22 03:20:05,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:20:05,224 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:20:05,230 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 [2023-12-22 03:20:05,428 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 [2023-12-22 03:20:05,428 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:20:05,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:20:05,429 INFO L85 PathProgramCache]: Analyzing trace with hash -926620422, now seen corresponding path program 1 times [2023-12-22 03:20:05,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:20:05,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696343012] [2023-12-22 03:20:05,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:20:05,429 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 [2023-12-22 03:20:05,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:20:05,431 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) [2023-12-22 03:20:05,432 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 [2023-12-22 03:20:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:20:05,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-22 03:20:05,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:20:08,579 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 19 proven. 273 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:20:08,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:20:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 3 proven. 279 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-22 03:20:14,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:20:14,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696343012] [2023-12-22 03:20:14,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696343012] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:20:14,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:20:14,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2023-12-22 03:20:14,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747465068] [2023-12-22 03:20:14,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:20:14,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-22 03:20:14,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:20:14,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-22 03:20:14,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-12-22 03:20:14,660 INFO L87 Difference]: Start difference. First operand 122 states and 188 transitions. Second operand has 34 states, 34 states have (on average 3.4411764705882355) internal successors, (117), 34 states have internal predecessors, (117), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:20:31,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:20:31,368 INFO L93 Difference]: Finished difference Result 310 states and 472 transitions. [2023-12-22 03:20:31,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-22 03:20:31,369 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.4411764705882355) internal successors, (117), 34 states have internal predecessors, (117), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 82 [2023-12-22 03:20:31,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:20:31,370 INFO L225 Difference]: With dead ends: 310 [2023-12-22 03:20:31,370 INFO L226 Difference]: Without dead ends: 195 [2023-12-22 03:20:31,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=991, Invalid=2315, Unknown=0, NotChecked=0, Total=3306 [2023-12-22 03:20:31,372 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 430 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2023-12-22 03:20:31,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1156 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2023-12-22 03:20:31,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-12-22 03:20:31,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 126. [2023-12-22 03:20:31,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 117 states have internal predecessors, (177), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-22 03:20:31,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 195 transitions. [2023-12-22 03:20:31,390 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 195 transitions. Word has length 82 [2023-12-22 03:20:31,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:20:31,390 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 195 transitions. [2023-12-22 03:20:31,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.4411764705882355) internal successors, (117), 34 states have internal predecessors, (117), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:20:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 195 transitions. [2023-12-22 03:20:31,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-22 03:20:31,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:20:31,391 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:20:31,409 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 [2023-12-22 03:20:31,596 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 [2023-12-22 03:20:31,596 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:20:31,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:20:31,596 INFO L85 PathProgramCache]: Analyzing trace with hash -207720859, now seen corresponding path program 2 times [2023-12-22 03:20:31,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:20:31,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704148175] [2023-12-22 03:20:31,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 03:20:31,598 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 [2023-12-22 03:20:31,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:20:31,599 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) [2023-12-22 03:20:31,603 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 [2023-12-22 03:20:31,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 03:20:31,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 03:20:31,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:20:31,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:20:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 761 trivial. 0 not checked. [2023-12-22 03:20:31,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:20:31,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:20:31,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704148175] [2023-12-22 03:20:31,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704148175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:20:31,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:20:31,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 03:20:31,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763428445] [2023-12-22 03:20:31,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:20:31,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:20:31,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:20:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:20:31,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:20:31,758 INFO L87 Difference]: Start difference. First operand 126 states and 195 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:20:31,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:20:31,940 INFO L93 Difference]: Finished difference Result 136 states and 206 transitions. [2023-12-22 03:20:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:20:31,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 107 [2023-12-22 03:20:31,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:20:31,942 INFO L225 Difference]: With dead ends: 136 [2023-12-22 03:20:31,942 INFO L226 Difference]: Without dead ends: 126 [2023-12-22 03:20:31,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:20:31,943 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 1 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 03:20:31,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 166 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 03:20:31,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-22 03:20:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-12-22 03:20:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 115 states have (on average 1.5304347826086957) internal successors, (176), 117 states have internal predecessors, (176), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-22 03:20:31,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 194 transitions. [2023-12-22 03:20:31,951 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 194 transitions. Word has length 107 [2023-12-22 03:20:31,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:20:31,951 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 194 transitions. [2023-12-22 03:20:31,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:20:31,951 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 194 transitions. [2023-12-22 03:20:31,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-22 03:20:31,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:20:31,952 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:20:31,958 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 [2023-12-22 03:20:32,155 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 [2023-12-22 03:20:32,155 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:20:32,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:20:32,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1017067485, now seen corresponding path program 1 times [2023-12-22 03:20:32,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:20:32,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900299479] [2023-12-22 03:20:32,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:20:32,156 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 [2023-12-22 03:20:32,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:20:32,157 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) [2023-12-22 03:20:32,176 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 [2023-12-22 03:20:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:20:32,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-22 03:20:32,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:20:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 19 proven. 737 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-22 03:20:38,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:20:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 3 proven. 743 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-22 03:20:52,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:20:52,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900299479] [2023-12-22 03:20:52,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900299479] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:20:52,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:20:52,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-12-22 03:20:52,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852338614] [2023-12-22 03:20:52,654 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:20:52,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-22 03:20:52,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:20:52,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-22 03:20:52,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2023-12-22 03:20:52,656 INFO L87 Difference]: Start difference. First operand 126 states and 194 transitions. Second operand has 50 states, 50 states have (on average 3.34) internal successors, (167), 50 states have internal predecessors, (167), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:22:02,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:22:02,243 INFO L93 Difference]: Finished difference Result 499 states and 772 transitions. [2023-12-22 03:22:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2023-12-22 03:22:02,245 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.34) internal successors, (167), 50 states have internal predecessors, (167), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 107 [2023-12-22 03:22:02,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:22:02,246 INFO L225 Difference]: With dead ends: 499 [2023-12-22 03:22:02,246 INFO L226 Difference]: Without dead ends: 380 [2023-12-22 03:22:02,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 39.3s TimeCoverageRelationStatistics Valid=2901, Invalid=6029, Unknown=0, NotChecked=0, Total=8930 [2023-12-22 03:22:02,249 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 1264 mSDsluCounter, 2599 mSDsCounter, 0 mSdLazyCounter, 5521 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 5569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 5521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:22:02,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 2711 Invalid, 5569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 5521 Invalid, 0 Unknown, 0 Unchecked, 45.8s Time] [2023-12-22 03:22:02,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-12-22 03:22:02,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 194. [2023-12-22 03:22:02,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 183 states have (on average 1.5792349726775956) internal successors, (289), 185 states have internal predecessors, (289), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-22 03:22:02,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 307 transitions. [2023-12-22 03:22:02,269 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 307 transitions. Word has length 107 [2023-12-22 03:22:02,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:22:02,270 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 307 transitions. [2023-12-22 03:22:02,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.34) internal successors, (167), 50 states have internal predecessors, (167), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 03:22:02,270 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 307 transitions. [2023-12-22 03:22:02,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-22 03:22:02,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:22:02,271 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:22:02,277 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 [2023-12-22 03:22:02,474 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 [2023-12-22 03:22:02,475 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:22:02,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:22:02,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1695105672, now seen corresponding path program 1 times [2023-12-22 03:22:02,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:22:02,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303699540] [2023-12-22 03:22:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:22:02,475 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 [2023-12-22 03:22:02,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:22:02,476 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) [2023-12-22 03:22:02,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 03:22:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:22:02,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 63 conjunts are in the unsatisfiable core [2023-12-22 03:22:02,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:22:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 7 proven. 834 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 03:22:15,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:22:42,366 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 7 proven. 834 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 03:22:42,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:22:42,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303699540] [2023-12-22 03:22:42,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303699540] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:22:42,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:22:42,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 66 [2023-12-22 03:22:42,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081328778] [2023-12-22 03:22:42,367 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:22:42,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-12-22 03:22:42,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:22:42,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-12-22 03:22:42,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=766, Invalid=3524, Unknown=0, NotChecked=0, Total=4290 [2023-12-22 03:22:42,369 INFO L87 Difference]: Start difference. First operand 194 states and 307 transitions. Second operand has 66 states, 63 states have (on average 2.9047619047619047) internal successors, (183), 62 states have internal predecessors, (183), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-22 03:27:12,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:27:12,426 INFO L93 Difference]: Finished difference Result 472 states and 1019 transitions. [2023-12-22 03:27:12,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2023-12-22 03:27:12,427 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 63 states have (on average 2.9047619047619047) internal successors, (183), 62 states have internal predecessors, (183), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) Word has length 112 [2023-12-22 03:27:12,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:27:12,430 INFO L225 Difference]: With dead ends: 472 [2023-12-22 03:27:12,430 INFO L226 Difference]: Without dead ends: 451 [2023-12-22 03:27:12,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18854 ImplicationChecksByTransitivity, 206.6s TimeCoverageRelationStatistics Valid=11300, Invalid=45582, Unknown=0, NotChecked=0, Total=56882 [2023-12-22 03:27:12,440 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 2424 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 10599 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2430 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 11216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 10599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.1s IncrementalHoareTripleChecker+Time [2023-12-22 03:27:12,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2430 Valid, 3151 Invalid, 11216 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [617 Valid, 10599 Invalid, 0 Unknown, 0 Unchecked, 93.1s Time] [2023-12-22 03:27:12,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2023-12-22 03:27:12,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 211. [2023-12-22 03:27:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 197 states have (on average 1.5736040609137056) internal successors, (310), 200 states have internal predecessors, (310), 7 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2023-12-22 03:27:12,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 342 transitions. [2023-12-22 03:27:12,508 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 342 transitions. Word has length 112 [2023-12-22 03:27:12,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:27:12,508 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 342 transitions. [2023-12-22 03:27:12,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 63 states have (on average 2.9047619047619047) internal successors, (183), 62 states have internal predecessors, (183), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-22 03:27:12,508 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 342 transitions. [2023-12-22 03:27:12,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-22 03:27:12,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:27:12,509 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 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] [2023-12-22 03:27:12,513 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 [2023-12-22 03:27:12,712 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 [2023-12-22 03:27:12,713 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:27:12,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:27:12,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1379550491, now seen corresponding path program 1 times [2023-12-22 03:27:12,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:27:12,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482791642] [2023-12-22 03:27:12,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:27:12,714 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 [2023-12-22 03:27:12,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:27:12,715 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) [2023-12-22 03:27:12,737 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 (19)] Waiting until timeout for monitored process [2023-12-22 03:27:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:27:12,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 03:27:12,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:27:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2023-12-22 03:27:13,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:27:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2023-12-22 03:27:13,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:27:13,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482791642] [2023-12-22 03:27:13,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482791642] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:27:13,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:27:13,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2023-12-22 03:27:13,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646741479] [2023-12-22 03:27:13,593 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:27:13,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 03:27:13,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:27:13,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 03:27:13,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 03:27:13,594 INFO L87 Difference]: Start difference. First operand 211 states and 342 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:27:14,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:27:14,088 INFO L93 Difference]: Finished difference Result 241 states and 389 transitions. [2023-12-22 03:27:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 03:27:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 116 [2023-12-22 03:27:14,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:27:14,101 INFO L225 Difference]: With dead ends: 241 [2023-12-22 03:27:14,101 INFO L226 Difference]: Without dead ends: 236 [2023-12-22 03:27:14,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-22 03:27:14,102 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 18 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 03:27:14,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 257 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 03:27:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-12-22 03:27:14,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2023-12-22 03:27:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 217 states have (on average 1.5529953917050692) internal successors, (337), 218 states have internal predecessors, (337), 9 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (34), 11 states have call predecessors, (34), 8 states have call successors, (34) [2023-12-22 03:27:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 380 transitions. [2023-12-22 03:27:14,148 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 380 transitions. Word has length 116 [2023-12-22 03:27:14,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:27:14,148 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 380 transitions. [2023-12-22 03:27:14,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:27:14,148 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 380 transitions. [2023-12-22 03:27:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 03:27:14,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:27:14,149 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 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] [2023-12-22 03:27:14,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-22 03:27:14,353 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 [2023-12-22 03:27:14,353 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:27:14,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:27:14,354 INFO L85 PathProgramCache]: Analyzing trace with hash -2135712213, now seen corresponding path program 1 times [2023-12-22 03:27:14,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:27:14,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848704777] [2023-12-22 03:27:14,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:27:14,354 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 [2023-12-22 03:27:14,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:27:14,355 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) [2023-12-22 03:27:14,361 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 [2023-12-22 03:27:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:27:14,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 03:27:14,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:27:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-12-22 03:27:14,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:27:14,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:27:14,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848704777] [2023-12-22 03:27:14,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848704777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:27:14,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:27:14,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 03:27:14,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945749806] [2023-12-22 03:27:14,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:27:14,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:27:14,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:27:14,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:27:14,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:27:14,617 INFO L87 Difference]: Start difference. First operand 233 states and 380 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:27:14,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:27:14,846 INFO L93 Difference]: Finished difference Result 254 states and 402 transitions. [2023-12-22 03:27:14,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:27:14,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 118 [2023-12-22 03:27:14,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:27:14,848 INFO L225 Difference]: With dead ends: 254 [2023-12-22 03:27:14,848 INFO L226 Difference]: Without dead ends: 248 [2023-12-22 03:27:14,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:27:14,849 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 3 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 03:27:14,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 153 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 03:27:14,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-12-22 03:27:14,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 246. [2023-12-22 03:27:14,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 230 states have (on average 1.5260869565217392) internal successors, (351), 231 states have internal predecessors, (351), 9 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (34), 11 states have call predecessors, (34), 8 states have call successors, (34) [2023-12-22 03:27:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 394 transitions. [2023-12-22 03:27:14,874 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 394 transitions. Word has length 118 [2023-12-22 03:27:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:27:14,875 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 394 transitions. [2023-12-22 03:27:14,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:27:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 394 transitions. [2023-12-22 03:27:14,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 03:27:14,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:27:14,876 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 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] [2023-12-22 03:27:14,887 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 (20)] Ended with exit code 0 [2023-12-22 03:27:15,079 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 [2023-12-22 03:27:15,079 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:27:15,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:27:15,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2078453911, now seen corresponding path program 1 times [2023-12-22 03:27:15,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:27:15,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194980839] [2023-12-22 03:27:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:27:15,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:27:15,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:27:15,082 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) [2023-12-22 03:27:15,101 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 [2023-12-22 03:27:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:27:15,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 03:27:15,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:27:15,433 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-12-22 03:27:15,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:27:15,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:27:15,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194980839] [2023-12-22 03:27:15,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194980839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:27:15,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:27:15,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 03:27:15,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424397656] [2023-12-22 03:27:15,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:27:15,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 03:27:15,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:27:15,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 03:27:15,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 03:27:15,434 INFO L87 Difference]: Start difference. First operand 246 states and 394 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:27:15,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:27:15,868 INFO L93 Difference]: Finished difference Result 252 states and 399 transitions. [2023-12-22 03:27:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 03:27:15,869 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 118 [2023-12-22 03:27:15,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:27:15,870 INFO L225 Difference]: With dead ends: 252 [2023-12-22 03:27:15,870 INFO L226 Difference]: Without dead ends: 236 [2023-12-22 03:27:15,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-22 03:27:15,871 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 2 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 03:27:15,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 268 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 03:27:15,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-12-22 03:27:15,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2023-12-22 03:27:15,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 219 states have (on average 1.5342465753424657) internal successors, (336), 221 states have internal predecessors, (336), 8 states have call successors, (8), 3 states have call predecessors, (8), 6 states have return successors, (28), 9 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-22 03:27:15,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 372 transitions. [2023-12-22 03:27:15,896 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 372 transitions. Word has length 118 [2023-12-22 03:27:15,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:27:15,896 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 372 transitions. [2023-12-22 03:27:15,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:27:15,896 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 372 transitions. [2023-12-22 03:27:15,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-22 03:27:15,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:27:15,897 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 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] [2023-12-22 03:27:15,900 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 (21)] Ended with exit code 0 [2023-12-22 03:27:16,100 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 [2023-12-22 03:27:16,101 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:27:16,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:27:16,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1750978561, now seen corresponding path program 1 times [2023-12-22 03:27:16,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:27:16,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499348708] [2023-12-22 03:27:16,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:27:16,101 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 [2023-12-22 03:27:16,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:27:16,102 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) [2023-12-22 03:27:16,103 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 [2023-12-22 03:27:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:27:16,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 03:27:16,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:27:16,655 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2023-12-22 03:27:16,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:27:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2023-12-22 03:27:16,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:27:16,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499348708] [2023-12-22 03:27:16,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499348708] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:27:16,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:27:16,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-12-22 03:27:16,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828240365] [2023-12-22 03:27:16,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:27:16,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 03:27:16,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:27:16,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 03:27:16,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-22 03:27:16,900 INFO L87 Difference]: Start difference. First operand 234 states and 372 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:27:17,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:27:17,642 INFO L93 Difference]: Finished difference Result 243 states and 380 transitions. [2023-12-22 03:27:17,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 03:27:17,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 119 [2023-12-22 03:27:17,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:27:17,644 INFO L225 Difference]: With dead ends: 243 [2023-12-22 03:27:17,644 INFO L226 Difference]: Without dead ends: 218 [2023-12-22 03:27:17,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-22 03:27:17,645 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 5 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 03:27:17,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 366 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 03:27:17,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-22 03:27:17,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 217. [2023-12-22 03:27:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 203 states have (on average 1.5517241379310345) internal successors, (315), 206 states have internal predecessors, (315), 7 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-22 03:27:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 341 transitions. [2023-12-22 03:27:17,694 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 341 transitions. Word has length 119 [2023-12-22 03:27:17,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:27:17,694 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 341 transitions. [2023-12-22 03:27:17,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-22 03:27:17,694 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 341 transitions. [2023-12-22 03:27:17,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-22 03:27:17,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:27:17,695 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 3, 3, 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] [2023-12-22 03:27:17,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-22 03:27:17,899 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 [2023-12-22 03:27:17,899 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:27:17,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:27:17,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1546076208, now seen corresponding path program 2 times [2023-12-22 03:27:17,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:27:17,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025514572] [2023-12-22 03:27:17,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 03:27:17,900 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 [2023-12-22 03:27:17,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:27:17,901 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) [2023-12-22 03:27:17,914 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 [2023-12-22 03:27:17,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 03:27:17,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 03:27:17,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 03:27:17,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:27:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2023-12-22 03:27:18,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:27:18,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:27:18,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025514572] [2023-12-22 03:27:18,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025514572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:27:18,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:27:18,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 03:27:18,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807136933] [2023-12-22 03:27:18,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:27:18,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 03:27:18,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:27:18,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 03:27:18,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:27:18,194 INFO L87 Difference]: Start difference. First operand 217 states and 341 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:27:18,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:27:18,617 INFO L93 Difference]: Finished difference Result 237 states and 366 transitions. [2023-12-22 03:27:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 03:27:18,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 120 [2023-12-22 03:27:18,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:27:18,619 INFO L225 Difference]: With dead ends: 237 [2023-12-22 03:27:18,619 INFO L226 Difference]: Without dead ends: 226 [2023-12-22 03:27:18,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 03:27:18,620 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 27 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 03:27:18,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 226 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 03:27:18,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-22 03:27:18,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 218. [2023-12-22 03:27:18,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 204 states have (on average 1.5490196078431373) internal successors, (316), 207 states have internal predecessors, (316), 7 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-22 03:27:18,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 342 transitions. [2023-12-22 03:27:18,644 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 342 transitions. Word has length 120 [2023-12-22 03:27:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:27:18,644 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 342 transitions. [2023-12-22 03:27:18,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-22 03:27:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 342 transitions. [2023-12-22 03:27:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-22 03:27:18,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:27:18,645 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 3, 3, 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] [2023-12-22 03:27:18,656 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 [2023-12-22 03:27:18,856 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 [2023-12-22 03:27:18,856 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:27:18,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:27:18,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1287910770, now seen corresponding path program 1 times [2023-12-22 03:27:18,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:27:18,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913288084] [2023-12-22 03:27:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:27:18,857 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 [2023-12-22 03:27:18,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:27:18,858 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) [2023-12-22 03:27:18,860 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 [2023-12-22 03:27:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:27:18,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 62 conjunts are in the unsatisfiable core [2023-12-22 03:27:18,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:27:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 3 proven. 838 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-22 03:27:30,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:27:55,833 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 3 proven. 838 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-22 03:27:55,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:27:55,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913288084] [2023-12-22 03:27:55,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913288084] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:27:55,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:27:55,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2023-12-22 03:27:55,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166164226] [2023-12-22 03:27:55,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:27:55,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-12-22 03:27:55,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:27:55,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-12-22 03:27:55,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=763, Invalid=3269, Unknown=0, NotChecked=0, Total=4032 [2023-12-22 03:27:55,835 INFO L87 Difference]: Start difference. First operand 218 states and 342 transitions. Second operand has 64 states, 62 states have (on average 3.0) internal successors, (186), 62 states have internal predecessors, (186), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Received shutdown request... [2023-12-22 03:31:06,577 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 [2023-12-22 03:31:06,577 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 (24)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 03:31:06,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2023-12-22 03:31:06,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10219 ImplicationChecksByTransitivity, 165.7s TimeCoverageRelationStatistics Valid=8299, Invalid=26483, Unknown=0, NotChecked=0, Total=34782 [2023-12-22 03:31:06,582 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 2464 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 6209 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 6778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 6209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.4s IncrementalHoareTripleChecker+Time [2023-12-22 03:31:06,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2464 Valid, 2663 Invalid, 6778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [569 Valid, 6209 Invalid, 0 Unknown, 0 Unchecked, 52.4s Time] [2023-12-22 03:31:06,583 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 03:31:06,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-22 03:31:06,783 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 [2023-12-22 03:31:06,784 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (218states) and FLOYD_HOARE automaton (currently 160 states, 64 states before enhancement),while ReachableStatesComputation was computing reachable states (494 states constructed, input type IntersectNwa). [2023-12-22 03:31:06,786 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 03:31:06,788 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:31:06,789 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 03:31:06,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:31:06 BoogieIcfgContainer [2023-12-22 03:31:06,791 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 03:31:06,791 INFO L158 Benchmark]: Toolchain (without parser) took 883445.47ms. Allocated memory was 183.5MB in the beginning and 245.4MB in the end (delta: 61.9MB). Free memory was 121.7MB in the beginning and 86.4MB in the end (delta: 35.2MB). Peak memory consumption was 97.9MB. Max. memory is 8.0GB. [2023-12-22 03:31:06,791 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 183.5MB. Free memory is still 135.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 03:31:06,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.44ms. Allocated memory is still 183.5MB. Free memory was 121.4MB in the beginning and 106.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-22 03:31:06,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.14ms. Allocated memory is still 183.5MB. Free memory was 106.3MB in the beginning and 104.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-22 03:31:06,792 INFO L158 Benchmark]: Boogie Preprocessor took 58.02ms. Allocated memory is still 183.5MB. Free memory was 104.3MB in the beginning and 101.5MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-22 03:31:06,792 INFO L158 Benchmark]: RCFGBuilder took 4730.97ms. Allocated memory was 183.5MB in the beginning and 245.4MB in the end (delta: 61.9MB). Free memory was 101.5MB in the beginning and 196.3MB in the end (delta: -94.8MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. [2023-12-22 03:31:06,792 INFO L158 Benchmark]: TraceAbstraction took 878407.72ms. Allocated memory is still 245.4MB. Free memory was 195.3MB in the beginning and 86.4MB in the end (delta: 108.8MB). Peak memory consumption was 108.8MB. Max. memory is 8.0GB. [2023-12-22 03:31:06,793 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 183.5MB. Free memory is still 135.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.44ms. Allocated memory is still 183.5MB. Free memory was 121.4MB in the beginning and 106.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.14ms. Allocated memory is still 183.5MB. Free memory was 106.3MB in the beginning and 104.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.02ms. Allocated memory is still 183.5MB. Free memory was 104.3MB in the beginning and 101.5MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 4730.97ms. Allocated memory was 183.5MB in the beginning and 245.4MB in the end (delta: 61.9MB). Free memory was 101.5MB in the beginning and 196.3MB in the end (delta: -94.8MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. * TraceAbstraction took 878407.72ms. Allocated memory is still 245.4MB. Free memory was 195.3MB in the beginning and 86.4MB in the end (delta: 108.8MB). Peak memory consumption was 108.8MB. 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: 60]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 60). Cancelled while NwaCegarLoop was constructing difference of abstraction (218states) and FLOYD_HOARE automaton (currently 160 states, 64 states before enhancement),while ReachableStatesComputation was computing reachable states (494 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 48). Cancelled while NwaCegarLoop was constructing difference of abstraction (218states) and FLOYD_HOARE automaton (currently 160 states, 64 states before enhancement),while ReachableStatesComputation was computing reachable states (494 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 54 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 878.4s, OverallIterations: 23, TraceHistogramMax: 24, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 597.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 7634 SdHoareTripleChecker+Valid, 238.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7628 mSDsluCounter, 14467 SdHoareTripleChecker+Invalid, 229.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 134 IncrementalHoareTripleChecker+Unchecked, 13060 mSDsCounter, 1363 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27069 IncrementalHoareTripleChecker+Invalid, 28568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1363 mSolverCounterUnsat, 1407 mSDtfsCounter, 27069 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3140 GetRequests, 2392 SyntacticMatches, 1 SemanticMatches, 747 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 31505 ImplicationChecksByTransitivity, 460.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246occurred in iteration=19, InterpolantAutomatonStates: 503, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 22 MinimizatonAttempts, 766 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 57.3s SatisfiabilityAnalysisTime, 217.4s InterpolantComputationTime, 1671 NumberOfCodeBlocks, 1404 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2557 ConstructedInterpolants, 2 QuantifiedInterpolants, 18753 SizeOfPredicates, 50 NumberOfNonLiveVariables, 2676 ConjunctsInSsa, 267 ConjunctsInUnsatCore, 34 InterpolantComputations, 12 PerfectInterpolantSequences, 7436/13312 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