/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/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 07:48:41,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 07:48:41,742 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 07:48:41,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 07:48:41,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 07:48:41,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 07:48:41,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 07:48:41,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 07:48:41,760 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 07:48:41,761 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 07:48:41,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 07:48:41,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 07:48:41,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 07:48:41,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 07:48:41,762 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 07:48:41,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 07:48:41,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 07:48:41,763 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 07:48:41,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 07:48:41,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 07:48:41,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 07:48:41,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 07:48:41,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 07:48:41,764 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 07:48:41,765 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 07:48:41,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 07:48:41,765 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 07:48:41,775 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 07:48:41,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 07:48:41,775 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 07:48:41,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 07:48:41,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 07:48:41,776 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 07:48:41,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 07:48:41,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:48:41,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 07:48:41,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 07:48:41,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 07:48:41,777 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 07:48:41,777 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 07:48:41,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 07:48:41,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 07:48:41,784 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 07:48:41,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 07:48:41,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 07:48:41,785 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 07:48:41,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 07:48:41,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 07:48:42,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 07:48:42,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 07:48:42,004 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 07:48:42,004 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 07:48:42,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c [2023-12-25 07:48:43,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 07:48:43,187 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 07:48:43,187 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c [2023-12-25 07:48:43,197 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a125968df/312a99dfef8a47eeafe65696a8007697/FLAG54152f4fd [2023-12-25 07:48:43,208 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a125968df/312a99dfef8a47eeafe65696a8007697 [2023-12-25 07:48:43,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 07:48:43,211 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 07:48:43,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 07:48:43,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 07:48:43,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 07:48:43,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6cb6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43, skipping insertion in model container [2023-12-25 07:48:43,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,248 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 07:48:43,378 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c[11335,11348] [2023-12-25 07:48:43,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:48:43,389 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 07:48:43,434 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c[11335,11348] [2023-12-25 07:48:43,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:48:43,445 INFO L206 MainTranslator]: Completed translation [2023-12-25 07:48:43,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43 WrapperNode [2023-12-25 07:48:43,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 07:48:43,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 07:48:43,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 07:48:43,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 07:48:43,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,475 INFO L138 Inliner]: procedures = 25, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 312 [2023-12-25 07:48:43,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 07:48:43,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 07:48:43,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 07:48:43,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 07:48:43,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,490 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,505 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]. [2023-12-25 07:48:43,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,512 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 07:48:43,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 07:48:43,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 07:48:43,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 07:48:43,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (1/1) ... [2023-12-25 07:48:43,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:48:43,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 07:48:43,563 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) [2023-12-25 07:48:43,582 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 [2023-12-25 07:48:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 07:48:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 07:48:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 07:48:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 07:48:43,691 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 07:48:43,694 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 07:48:44,021 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 07:48:44,060 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 07:48:44,060 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 07:48:44,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:48:44 BoogieIcfgContainer [2023-12-25 07:48:44,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 07:48:44,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 07:48:44,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 07:48:44,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 07:48:44,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 07:48:43" (1/3) ... [2023-12-25 07:48:44,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3d6a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:48:44, skipping insertion in model container [2023-12-25 07:48:44,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:48:43" (2/3) ... [2023-12-25 07:48:44,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3d6a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:48:44, skipping insertion in model container [2023-12-25 07:48:44,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:48:44" (3/3) ... [2023-12-25 07:48:44,090 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c [2023-12-25 07:48:44,103 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 07:48:44,103 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 07:48:44,152 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 07:48:44,158 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;@22c5ac36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 07:48:44,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 07:48:44,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 76 states have (on average 1.8026315789473684) internal successors, (137), 77 states have internal predecessors, (137), 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) [2023-12-25 07:48:44,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-25 07:48:44,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:44,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:44,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:44,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:44,177 INFO L85 PathProgramCache]: Analyzing trace with hash -936899003, now seen corresponding path program 1 times [2023-12-25 07:48:44,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:44,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948559850] [2023-12-25 07:48:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:44,188 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:48:44,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:44,191 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) [2023-12-25 07:48:44,194 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 [2023-12-25 07:48:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:44,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 07:48:44,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:44,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:44,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:44,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948559850] [2023-12-25 07:48:44,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948559850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:44,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:44,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:48:44,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604704902] [2023-12-25 07:48:44,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:44,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 07:48:44,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:44,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 07:48:44,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 07:48:44,328 INFO L87 Difference]: Start difference. First operand has 78 states, 76 states have (on average 1.8026315789473684) internal successors, (137), 77 states have internal predecessors, (137), 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) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2023-12-25 07:48:44,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:44,348 INFO L93 Difference]: Finished difference Result 120 states and 207 transitions. [2023-12-25 07:48:44,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 07:48:44,350 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2023-12-25 07:48:44,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:44,356 INFO L225 Difference]: With dead ends: 120 [2023-12-25 07:48:44,356 INFO L226 Difference]: Without dead ends: 76 [2023-12-25 07:48:44,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 07:48:44,360 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:44,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:44,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-25 07:48:44,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-25 07:48:44,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.76) internal successors, (132), 75 states have internal predecessors, (132), 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) [2023-12-25 07:48:44,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 132 transitions. [2023-12-25 07:48:44,392 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 132 transitions. Word has length 20 [2023-12-25 07:48:44,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:44,392 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 132 transitions. [2023-12-25 07:48:44,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2023-12-25 07:48:44,393 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 132 transitions. [2023-12-25 07:48:44,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-25 07:48:44,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:44,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:44,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 07:48:44,596 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 [2023-12-25 07:48:44,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:44,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1769720391, now seen corresponding path program 1 times [2023-12-25 07:48:44,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:44,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120872090] [2023-12-25 07:48:44,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:44,598 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 [2023-12-25 07:48:44,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:44,599 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) [2023-12-25 07:48:44,600 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 [2023-12-25 07:48:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:44,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:48:44,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:44,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:44,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:44,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:44,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120872090] [2023-12-25 07:48:44,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120872090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:44,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:44,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:48:44,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549637398] [2023-12-25 07:48:44,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:44,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:48:44,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:44,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:48:44,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:48:44,734 INFO L87 Difference]: Start difference. First operand 76 states and 132 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-12-25 07:48:44,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:44,819 INFO L93 Difference]: Finished difference Result 120 states and 201 transitions. [2023-12-25 07:48:44,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:48:44,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2023-12-25 07:48:44,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:44,820 INFO L225 Difference]: With dead ends: 120 [2023-12-25 07:48:44,820 INFO L226 Difference]: Without dead ends: 76 [2023-12-25 07:48:44,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:48:44,821 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:44,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 353 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:48:44,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-25 07:48:44,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-25 07:48:44,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 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) [2023-12-25 07:48:44,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 101 transitions. [2023-12-25 07:48:44,826 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 101 transitions. Word has length 20 [2023-12-25 07:48:44,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:44,827 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 101 transitions. [2023-12-25 07:48:44,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-12-25 07:48:44,827 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 101 transitions. [2023-12-25 07:48:44,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-25 07:48:44,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:44,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:44,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 07:48:45,031 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 [2023-12-25 07:48:45,035 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:45,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:45,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1805949634, now seen corresponding path program 1 times [2023-12-25 07:48:45,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:45,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102654144] [2023-12-25 07:48:45,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:45,036 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 [2023-12-25 07:48:45,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:45,037 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) [2023-12-25 07:48:45,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 07:48:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:45,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:48:45,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:45,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:45,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:45,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:45,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102654144] [2023-12-25 07:48:45,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102654144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:45,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:45,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:48:45,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868255037] [2023-12-25 07:48:45,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:45,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:48:45,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:45,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:48:45,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:48:45,616 INFO L87 Difference]: Start difference. First operand 76 states and 101 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2023-12-25 07:48:45,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:45,754 INFO L93 Difference]: Finished difference Result 322 states and 497 transitions. [2023-12-25 07:48:45,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:48:45,755 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2023-12-25 07:48:45,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:45,757 INFO L225 Difference]: With dead ends: 322 [2023-12-25 07:48:45,757 INFO L226 Difference]: Without dead ends: 281 [2023-12-25 07:48:45,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:48:45,758 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 355 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:45,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 570 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:48:45,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-25 07:48:45,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 154. [2023-12-25 07:48:45,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.4901960784313726) internal successors, (228), 153 states have internal predecessors, (228), 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) [2023-12-25 07:48:45,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 228 transitions. [2023-12-25 07:48:45,768 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 228 transitions. Word has length 50 [2023-12-25 07:48:45,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:45,769 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 228 transitions. [2023-12-25 07:48:45,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2023-12-25 07:48:45,769 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 228 transitions. [2023-12-25 07:48:45,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 07:48:45,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:45,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:45,776 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 [2023-12-25 07:48:45,972 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 [2023-12-25 07:48:45,973 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:45,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:45,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1110513490, now seen corresponding path program 1 times [2023-12-25 07:48:45,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:45,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110345358] [2023-12-25 07:48:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:45,974 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 [2023-12-25 07:48:45,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:45,975 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) [2023-12-25 07:48:45,977 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 [2023-12-25 07:48:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:46,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:46,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:46,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:46,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:46,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:46,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110345358] [2023-12-25 07:48:46,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110345358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:46,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:46,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:46,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414005916] [2023-12-25 07:48:46,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:46,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:46,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:46,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:46,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:46,102 INFO L87 Difference]: Start difference. First operand 154 states and 228 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-12-25 07:48:46,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:46,117 INFO L93 Difference]: Finished difference Result 376 states and 586 transitions. [2023-12-25 07:48:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:46,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2023-12-25 07:48:46,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:46,119 INFO L225 Difference]: With dead ends: 376 [2023-12-25 07:48:46,119 INFO L226 Difference]: Without dead ends: 257 [2023-12-25 07:48:46,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:46,120 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 42 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:46,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 157 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:46,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-12-25 07:48:46,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2023-12-25 07:48:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.5236220472440944) internal successors, (387), 254 states have internal predecessors, (387), 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) [2023-12-25 07:48:46,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 387 transitions. [2023-12-25 07:48:46,129 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 387 transitions. Word has length 52 [2023-12-25 07:48:46,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:46,130 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 387 transitions. [2023-12-25 07:48:46,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-12-25 07:48:46,130 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 387 transitions. [2023-12-25 07:48:46,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 07:48:46,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:46,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:46,136 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 [2023-12-25 07:48:46,333 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 [2023-12-25 07:48:46,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:46,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:46,334 INFO L85 PathProgramCache]: Analyzing trace with hash -13730052, now seen corresponding path program 1 times [2023-12-25 07:48:46,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:46,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797678606] [2023-12-25 07:48:46,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:46,334 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 [2023-12-25 07:48:46,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:46,335 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) [2023-12-25 07:48:46,337 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 [2023-12-25 07:48:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:46,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:48:46,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:46,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:46,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:46,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:46,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797678606] [2023-12-25 07:48:46,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797678606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:46,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:46,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:48:46,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512681476] [2023-12-25 07:48:46,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:46,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:48:46,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:46,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:48:46,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:48:46,406 INFO L87 Difference]: Start difference. First operand 255 states and 387 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-12-25 07:48:46,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:46,444 INFO L93 Difference]: Finished difference Result 269 states and 404 transitions. [2023-12-25 07:48:46,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:48:46,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2023-12-25 07:48:46,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:46,446 INFO L225 Difference]: With dead ends: 269 [2023-12-25 07:48:46,446 INFO L226 Difference]: Without dead ends: 267 [2023-12-25 07:48:46,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:48:46,447 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:46,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 283 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:46,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-12-25 07:48:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 263. [2023-12-25 07:48:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 1.5038167938931297) internal successors, (394), 262 states have internal predecessors, (394), 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) [2023-12-25 07:48:46,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 394 transitions. [2023-12-25 07:48:46,454 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 394 transitions. Word has length 53 [2023-12-25 07:48:46,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:46,454 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 394 transitions. [2023-12-25 07:48:46,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-12-25 07:48:46,454 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 394 transitions. [2023-12-25 07:48:46,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:48:46,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:46,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:46,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 07:48:46,658 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 [2023-12-25 07:48:46,660 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:46,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:46,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1384081850, now seen corresponding path program 1 times [2023-12-25 07:48:46,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:46,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423132890] [2023-12-25 07:48:46,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:46,661 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 [2023-12-25 07:48:46,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:46,662 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) [2023-12-25 07:48:46,663 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 [2023-12-25 07:48:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:46,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:46,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:46,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:46,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:46,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423132890] [2023-12-25 07:48:46,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423132890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:46,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:46,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:46,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803322010] [2023-12-25 07:48:46,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:46,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:46,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:46,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:46,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:46,757 INFO L87 Difference]: Start difference. First operand 263 states and 394 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-25 07:48:46,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:46,769 INFO L93 Difference]: Finished difference Result 503 states and 774 transitions. [2023-12-25 07:48:46,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:46,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-12-25 07:48:46,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:46,770 INFO L225 Difference]: With dead ends: 503 [2023-12-25 07:48:46,770 INFO L226 Difference]: Without dead ends: 378 [2023-12-25 07:48:46,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:46,772 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:46,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 214 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:46,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-12-25 07:48:46,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2023-12-25 07:48:46,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.52) internal successors, (570), 375 states have internal predecessors, (570), 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) [2023-12-25 07:48:46,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 570 transitions. [2023-12-25 07:48:46,779 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 570 transitions. Word has length 54 [2023-12-25 07:48:46,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:46,779 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 570 transitions. [2023-12-25 07:48:46,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-25 07:48:46,779 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 570 transitions. [2023-12-25 07:48:46,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:48:46,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:46,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:46,786 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 [2023-12-25 07:48:46,982 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 [2023-12-25 07:48:46,985 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:46,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:46,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1612721082, now seen corresponding path program 1 times [2023-12-25 07:48:46,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:46,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212743435] [2023-12-25 07:48:46,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:46,986 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 [2023-12-25 07:48:46,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:46,987 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) [2023-12-25 07:48:47,012 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 [2023-12-25 07:48:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:47,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:47,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:47,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:47,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:47,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:47,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212743435] [2023-12-25 07:48:47,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212743435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:47,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:47,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:47,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934391388] [2023-12-25 07:48:47,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:47,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:47,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:47,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:47,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:47,067 INFO L87 Difference]: Start difference. First operand 376 states and 570 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-25 07:48:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:47,081 INFO L93 Difference]: Finished difference Result 1018 states and 1573 transitions. [2023-12-25 07:48:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:47,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-12-25 07:48:47,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:47,084 INFO L225 Difference]: With dead ends: 1018 [2023-12-25 07:48:47,084 INFO L226 Difference]: Without dead ends: 679 [2023-12-25 07:48:47,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:47,085 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 52 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:47,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 214 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:47,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2023-12-25 07:48:47,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 677. [2023-12-25 07:48:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 676 states have (on average 1.5236686390532543) internal successors, (1030), 676 states have internal predecessors, (1030), 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) [2023-12-25 07:48:47,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1030 transitions. [2023-12-25 07:48:47,097 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 1030 transitions. Word has length 54 [2023-12-25 07:48:47,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:47,097 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 1030 transitions. [2023-12-25 07:48:47,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-25 07:48:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 1030 transitions. [2023-12-25 07:48:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:48:47,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:47,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:47,100 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 (8)] Forceful destruction successful, exit code 0 [2023-12-25 07:48:47,299 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 [2023-12-25 07:48:47,300 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:47,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:47,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2056590150, now seen corresponding path program 1 times [2023-12-25 07:48:47,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:47,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578091955] [2023-12-25 07:48:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:47,302 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 [2023-12-25 07:48:47,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:47,303 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) [2023-12-25 07:48:47,320 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 [2023-12-25 07:48:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:47,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:47,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:47,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:47,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:47,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:47,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578091955] [2023-12-25 07:48:47,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578091955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:47,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:47,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:47,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8089615] [2023-12-25 07:48:47,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:47,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:47,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:47,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:47,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:47,391 INFO L87 Difference]: Start difference. First operand 677 states and 1030 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-25 07:48:47,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:47,419 INFO L93 Difference]: Finished difference Result 1885 states and 2890 transitions. [2023-12-25 07:48:47,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:47,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-12-25 07:48:47,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:47,425 INFO L225 Difference]: With dead ends: 1885 [2023-12-25 07:48:47,425 INFO L226 Difference]: Without dead ends: 1245 [2023-12-25 07:48:47,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:47,427 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 50 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:47,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 216 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:47,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2023-12-25 07:48:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1243. [2023-12-25 07:48:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1242 states have (on average 1.5120772946859904) internal successors, (1878), 1242 states have internal predecessors, (1878), 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) [2023-12-25 07:48:47,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1878 transitions. [2023-12-25 07:48:47,447 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1878 transitions. Word has length 54 [2023-12-25 07:48:47,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:47,448 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1878 transitions. [2023-12-25 07:48:47,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-25 07:48:47,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1878 transitions. [2023-12-25 07:48:47,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:48:47,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:47,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:47,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 07:48:47,651 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 [2023-12-25 07:48:47,652 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:47,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:47,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1349643706, now seen corresponding path program 1 times [2023-12-25 07:48:47,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:47,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954895604] [2023-12-25 07:48:47,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:47,652 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 [2023-12-25 07:48:47,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:47,653 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) [2023-12-25 07:48:47,654 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 [2023-12-25 07:48:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:47,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:47,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:47,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:47,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:47,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954895604] [2023-12-25 07:48:47,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954895604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:47,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:47,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:47,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396776256] [2023-12-25 07:48:47,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:47,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:47,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:47,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:47,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:47,732 INFO L87 Difference]: Start difference. First operand 1243 states and 1878 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-25 07:48:47,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:47,762 INFO L93 Difference]: Finished difference Result 3511 states and 5308 transitions. [2023-12-25 07:48:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:47,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-12-25 07:48:47,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:47,768 INFO L225 Difference]: With dead ends: 3511 [2023-12-25 07:48:47,768 INFO L226 Difference]: Without dead ends: 2305 [2023-12-25 07:48:47,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:47,770 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 48 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:47,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 218 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:47,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2023-12-25 07:48:47,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2303. [2023-12-25 07:48:47,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2303 states, 2302 states have (on average 1.4900086880973067) internal successors, (3430), 2302 states have internal predecessors, (3430), 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) [2023-12-25 07:48:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 3430 transitions. [2023-12-25 07:48:47,836 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 3430 transitions. Word has length 54 [2023-12-25 07:48:47,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:47,836 INFO L495 AbstractCegarLoop]: Abstraction has 2303 states and 3430 transitions. [2023-12-25 07:48:47,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-25 07:48:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 3430 transitions. [2023-12-25 07:48:47,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:48:47,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:47,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:47,842 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 [2023-12-25 07:48:48,040 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 [2023-12-25 07:48:48,040 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:48,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:48,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1652665018, now seen corresponding path program 1 times [2023-12-25 07:48:48,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:48,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744034147] [2023-12-25 07:48:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:48,041 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 [2023-12-25 07:48:48,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:48,042 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) [2023-12-25 07:48:48,045 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 [2023-12-25 07:48:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:48,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:48,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:48,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:48,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:48,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:48,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744034147] [2023-12-25 07:48:48,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744034147] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:48,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:48,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:48,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185788833] [2023-12-25 07:48:48,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:48,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:48,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:48,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:48,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:48,118 INFO L87 Difference]: Start difference. First operand 2303 states and 3430 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-25 07:48:48,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:48,168 INFO L93 Difference]: Finished difference Result 6547 states and 9712 transitions. [2023-12-25 07:48:48,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:48,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-12-25 07:48:48,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:48,180 INFO L225 Difference]: With dead ends: 6547 [2023-12-25 07:48:48,181 INFO L226 Difference]: Without dead ends: 4281 [2023-12-25 07:48:48,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:48,187 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 54 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:48,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 220 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:48,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2023-12-25 07:48:48,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 4279. [2023-12-25 07:48:48,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4279 states, 4278 states have (on average 1.4600280504908836) internal successors, (6246), 4278 states have internal predecessors, (6246), 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) [2023-12-25 07:48:48,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4279 states to 4279 states and 6246 transitions. [2023-12-25 07:48:48,265 INFO L78 Accepts]: Start accepts. Automaton has 4279 states and 6246 transitions. Word has length 54 [2023-12-25 07:48:48,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:48,265 INFO L495 AbstractCegarLoop]: Abstraction has 4279 states and 6246 transitions. [2023-12-25 07:48:48,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-12-25 07:48:48,265 INFO L276 IsEmpty]: Start isEmpty. Operand 4279 states and 6246 transitions. [2023-12-25 07:48:48,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 07:48:48,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:48,267 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:48,271 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 [2023-12-25 07:48:48,469 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 [2023-12-25 07:48:48,469 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:48,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:48,470 INFO L85 PathProgramCache]: Analyzing trace with hash 824044613, now seen corresponding path program 1 times [2023-12-25 07:48:48,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:48,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121609617] [2023-12-25 07:48:48,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:48,470 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 [2023-12-25 07:48:48,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:48,471 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) [2023-12-25 07:48:48,475 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 [2023-12-25 07:48:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:48,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:48:48,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:49,079 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:49,080 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:48:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:49,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:49,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121609617] [2023-12-25 07:48:49,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121609617] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:48:49,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:48:49,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:48:49,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265572205] [2023-12-25 07:48:49,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:48:49,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:48:49,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:48:49,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:48:49,337 INFO L87 Difference]: Start difference. First operand 4279 states and 6246 transitions. Second operand has 16 states, 16 states have (on average 8.125) internal successors, (130), 16 states have internal predecessors, (130), 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) [2023-12-25 07:48:50,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:50,625 INFO L93 Difference]: Finished difference Result 13617 states and 19755 transitions. [2023-12-25 07:48:50,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-25 07:48:50,625 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.125) internal successors, (130), 16 states have internal predecessors, (130), 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 72 [2023-12-25 07:48:50,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:50,652 INFO L225 Difference]: With dead ends: 13617 [2023-12-25 07:48:50,652 INFO L226 Difference]: Without dead ends: 10639 [2023-12-25 07:48:50,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-25 07:48:50,658 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 684 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:50,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 975 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:48:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10639 states. [2023-12-25 07:48:50,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10639 to 8519. [2023-12-25 07:48:50,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8519 states, 8518 states have (on average 1.456445174923691) internal successors, (12406), 8518 states have internal predecessors, (12406), 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) [2023-12-25 07:48:50,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8519 states to 8519 states and 12406 transitions. [2023-12-25 07:48:50,919 INFO L78 Accepts]: Start accepts. Automaton has 8519 states and 12406 transitions. Word has length 72 [2023-12-25 07:48:50,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:50,920 INFO L495 AbstractCegarLoop]: Abstraction has 8519 states and 12406 transitions. [2023-12-25 07:48:50,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.125) internal successors, (130), 16 states have internal predecessors, (130), 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) [2023-12-25 07:48:50,920 INFO L276 IsEmpty]: Start isEmpty. Operand 8519 states and 12406 transitions. [2023-12-25 07:48:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 07:48:50,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:50,921 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:50,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 07:48:51,124 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 [2023-12-25 07:48:51,124 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:51,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:51,125 INFO L85 PathProgramCache]: Analyzing trace with hash 595405381, now seen corresponding path program 1 times [2023-12-25 07:48:51,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:51,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973368671] [2023-12-25 07:48:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:51,125 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 [2023-12-25 07:48:51,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:51,126 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) [2023-12-25 07:48:51,132 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 [2023-12-25 07:48:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:51,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:51,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:51,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:51,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:51,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973368671] [2023-12-25 07:48:51,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973368671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:51,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:51,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:51,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671947481] [2023-12-25 07:48:51,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:51,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:51,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:51,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:51,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:51,204 INFO L87 Difference]: Start difference. First operand 8519 states and 12406 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-25 07:48:51,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:51,333 INFO L93 Difference]: Finished difference Result 14493 states and 21211 transitions. [2023-12-25 07:48:51,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:51,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2023-12-25 07:48:51,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:51,347 INFO L225 Difference]: With dead ends: 14493 [2023-12-25 07:48:51,347 INFO L226 Difference]: Without dead ends: 6011 [2023-12-25 07:48:51,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:51,353 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 47 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:51,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 226 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:51,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2023-12-25 07:48:51,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 6004. [2023-12-25 07:48:51,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6004 states, 6003 states have (on average 1.4557721139430284) internal successors, (8739), 6003 states have internal predecessors, (8739), 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) [2023-12-25 07:48:51,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6004 states to 6004 states and 8739 transitions. [2023-12-25 07:48:51,492 INFO L78 Accepts]: Start accepts. Automaton has 6004 states and 8739 transitions. Word has length 72 [2023-12-25 07:48:51,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:51,492 INFO L495 AbstractCegarLoop]: Abstraction has 6004 states and 8739 transitions. [2023-12-25 07:48:51,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-25 07:48:51,492 INFO L276 IsEmpty]: Start isEmpty. Operand 6004 states and 8739 transitions. [2023-12-25 07:48:51,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 07:48:51,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:51,493 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:51,516 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 [2023-12-25 07:48:51,703 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 [2023-12-25 07:48:51,703 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:51,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:51,704 INFO L85 PathProgramCache]: Analyzing trace with hash -265147731, now seen corresponding path program 1 times [2023-12-25 07:48:51,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:51,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900184580] [2023-12-25 07:48:51,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:51,704 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 [2023-12-25 07:48:51,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:51,706 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) [2023-12-25 07:48:51,712 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 [2023-12-25 07:48:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:51,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:51,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:51,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:51,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:51,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900184580] [2023-12-25 07:48:51,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900184580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:51,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:51,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:51,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195509531] [2023-12-25 07:48:51,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:51,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:51,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:51,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:51,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:51,786 INFO L87 Difference]: Start difference. First operand 6004 states and 8739 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-12-25 07:48:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:51,832 INFO L93 Difference]: Finished difference Result 8984 states and 13085 transitions. [2023-12-25 07:48:51,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:51,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2023-12-25 07:48:51,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:51,843 INFO L225 Difference]: With dead ends: 8984 [2023-12-25 07:48:51,844 INFO L226 Difference]: Without dead ends: 3030 [2023-12-25 07:48:51,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:51,849 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 43 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:51,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 211 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:51,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2023-12-25 07:48:51,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3028. [2023-12-25 07:48:51,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 3027 states have (on average 1.4360753221010902) internal successors, (4347), 3027 states have internal predecessors, (4347), 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) [2023-12-25 07:48:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 4347 transitions. [2023-12-25 07:48:51,934 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 4347 transitions. Word has length 74 [2023-12-25 07:48:51,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:51,934 INFO L495 AbstractCegarLoop]: Abstraction has 3028 states and 4347 transitions. [2023-12-25 07:48:51,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-12-25 07:48:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 4347 transitions. [2023-12-25 07:48:51,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 07:48:51,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:51,935 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:51,939 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 [2023-12-25 07:48:52,136 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 [2023-12-25 07:48:52,137 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:52,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:52,137 INFO L85 PathProgramCache]: Analyzing trace with hash 740089334, now seen corresponding path program 1 times [2023-12-25 07:48:52,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:52,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206729463] [2023-12-25 07:48:52,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:52,138 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 [2023-12-25 07:48:52,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:52,139 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) [2023-12-25 07:48:52,170 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 [2023-12-25 07:48:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:52,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:48:52,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:52,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:48:52,901 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:52,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:52,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206729463] [2023-12-25 07:48:52,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206729463] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:48:52,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:48:52,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:48:52,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780810286] [2023-12-25 07:48:52,902 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:48:52,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:48:52,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:52,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:48:52,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:48:52,902 INFO L87 Difference]: Start difference. First operand 3028 states and 4347 transitions. Second operand has 16 states, 16 states have (on average 8.625) internal successors, (138), 16 states have internal predecessors, (138), 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) [2023-12-25 07:48:54,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:54,038 INFO L93 Difference]: Finished difference Result 11436 states and 16351 transitions. [2023-12-25 07:48:54,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:48:54,039 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.625) internal successors, (138), 16 states have internal predecessors, (138), 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 75 [2023-12-25 07:48:54,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:54,052 INFO L225 Difference]: With dead ends: 11436 [2023-12-25 07:48:54,052 INFO L226 Difference]: Without dead ends: 8458 [2023-12-25 07:48:54,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:48:54,055 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 586 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:54,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1147 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:48:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2023-12-25 07:48:54,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 6292. [2023-12-25 07:48:54,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6291 states have (on average 1.4120171673819744) internal successors, (8883), 6291 states have internal predecessors, (8883), 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) [2023-12-25 07:48:54,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 8883 transitions. [2023-12-25 07:48:54,196 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 8883 transitions. Word has length 75 [2023-12-25 07:48:54,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:54,196 INFO L495 AbstractCegarLoop]: Abstraction has 6292 states and 8883 transitions. [2023-12-25 07:48:54,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.625) internal successors, (138), 16 states have internal predecessors, (138), 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) [2023-12-25 07:48:54,197 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 8883 transitions. [2023-12-25 07:48:54,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:48:54,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:54,198 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:54,206 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 [2023-12-25 07:48:54,400 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 [2023-12-25 07:48:54,400 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:54,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:54,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1992426602, now seen corresponding path program 1 times [2023-12-25 07:48:54,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:54,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823967133] [2023-12-25 07:48:54,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:54,401 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 [2023-12-25 07:48:54,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:54,402 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) [2023-12-25 07:48:54,436 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 [2023-12-25 07:48:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:54,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:54,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:54,480 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:54,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:54,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:54,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823967133] [2023-12-25 07:48:54,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823967133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:54,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:54,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:54,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982755145] [2023-12-25 07:48:54,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:54,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:54,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:54,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:54,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:54,481 INFO L87 Difference]: Start difference. First operand 6292 states and 8883 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2023-12-25 07:48:54,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:54,555 INFO L93 Difference]: Finished difference Result 9416 states and 13301 transitions. [2023-12-25 07:48:54,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:54,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-25 07:48:54,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:54,559 INFO L225 Difference]: With dead ends: 9416 [2023-12-25 07:48:54,559 INFO L226 Difference]: Without dead ends: 3174 [2023-12-25 07:48:54,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:54,565 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 39 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:54,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 196 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:54,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2023-12-25 07:48:54,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 3172. [2023-12-25 07:48:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3171 states have (on average 1.3935666982024597) internal successors, (4419), 3171 states have internal predecessors, (4419), 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) [2023-12-25 07:48:54,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 4419 transitions. [2023-12-25 07:48:54,640 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 4419 transitions. Word has length 77 [2023-12-25 07:48:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:54,640 INFO L495 AbstractCegarLoop]: Abstraction has 3172 states and 4419 transitions. [2023-12-25 07:48:54,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2023-12-25 07:48:54,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 4419 transitions. [2023-12-25 07:48:54,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 07:48:54,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:54,641 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:54,644 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 [2023-12-25 07:48:54,843 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 [2023-12-25 07:48:54,843 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:54,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2045360857, now seen corresponding path program 1 times [2023-12-25 07:48:54,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:54,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275931060] [2023-12-25 07:48:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:54,844 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 [2023-12-25 07:48:54,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:54,845 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) [2023-12-25 07:48:54,847 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 [2023-12-25 07:48:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:54,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:48:54,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:55,381 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:48:55,582 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:55,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:55,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275931060] [2023-12-25 07:48:55,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275931060] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:48:55,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:48:55,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:48:55,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251919251] [2023-12-25 07:48:55,583 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:48:55,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:48:55,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:55,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:48:55,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:48:55,584 INFO L87 Difference]: Start difference. First operand 3172 states and 4419 transitions. Second operand has 16 states, 16 states have (on average 9.125) internal successors, (146), 16 states have internal predecessors, (146), 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) [2023-12-25 07:48:56,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:56,641 INFO L93 Difference]: Finished difference Result 11580 states and 16087 transitions. [2023-12-25 07:48:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:48:56,642 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.125) internal successors, (146), 16 states have internal predecessors, (146), 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 78 [2023-12-25 07:48:56,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:56,651 INFO L225 Difference]: With dead ends: 11580 [2023-12-25 07:48:56,651 INFO L226 Difference]: Without dead ends: 8458 [2023-12-25 07:48:56,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:48:56,654 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 550 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:56,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1013 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:48:56,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2023-12-25 07:48:56,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 6580. [2023-12-25 07:48:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6580 states, 6579 states have (on average 1.372093023255814) internal successors, (9027), 6579 states have internal predecessors, (9027), 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) [2023-12-25 07:48:56,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6580 states to 6580 states and 9027 transitions. [2023-12-25 07:48:56,800 INFO L78 Accepts]: Start accepts. Automaton has 6580 states and 9027 transitions. Word has length 78 [2023-12-25 07:48:56,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:56,801 INFO L495 AbstractCegarLoop]: Abstraction has 6580 states and 9027 transitions. [2023-12-25 07:48:56,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.125) internal successors, (146), 16 states have internal predecessors, (146), 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) [2023-12-25 07:48:56,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6580 states and 9027 transitions. [2023-12-25 07:48:56,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 07:48:56,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:56,801 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:56,804 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 (17)] Ended with exit code 0 [2023-12-25 07:48:57,003 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 [2023-12-25 07:48:57,004 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:57,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:57,004 INFO L85 PathProgramCache]: Analyzing trace with hash -854497319, now seen corresponding path program 1 times [2023-12-25 07:48:57,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:57,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209262018] [2023-12-25 07:48:57,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:57,005 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 [2023-12-25 07:48:57,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:57,005 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) [2023-12-25 07:48:57,009 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 [2023-12-25 07:48:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:57,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:57,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:57,090 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:57,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:57,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:57,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209262018] [2023-12-25 07:48:57,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209262018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:57,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:57,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:57,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371152742] [2023-12-25 07:48:57,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:57,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:57,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:57,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:57,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:57,091 INFO L87 Difference]: Start difference. First operand 6580 states and 9027 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2023-12-25 07:48:57,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:57,176 INFO L93 Difference]: Finished difference Result 9848 states and 13517 transitions. [2023-12-25 07:48:57,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:57,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2023-12-25 07:48:57,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:57,180 INFO L225 Difference]: With dead ends: 9848 [2023-12-25 07:48:57,181 INFO L226 Difference]: Without dead ends: 3318 [2023-12-25 07:48:57,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:57,185 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 35 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:57,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 181 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:57,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2023-12-25 07:48:57,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 3316. [2023-12-25 07:48:57,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 3315 states have (on average 1.3547511312217195) internal successors, (4491), 3315 states have internal predecessors, (4491), 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) [2023-12-25 07:48:57,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 4491 transitions. [2023-12-25 07:48:57,250 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 4491 transitions. Word has length 80 [2023-12-25 07:48:57,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:57,250 INFO L495 AbstractCegarLoop]: Abstraction has 3316 states and 4491 transitions. [2023-12-25 07:48:57,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2023-12-25 07:48:57,250 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 4491 transitions. [2023-12-25 07:48:57,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 07:48:57,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:57,251 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:57,262 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 [2023-12-25 07:48:57,453 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 [2023-12-25 07:48:57,454 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:57,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash -935590838, now seen corresponding path program 1 times [2023-12-25 07:48:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:57,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057204562] [2023-12-25 07:48:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:57,455 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 [2023-12-25 07:48:57,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:57,456 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) [2023-12-25 07:48:57,458 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 [2023-12-25 07:48:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:57,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:48:57,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:58,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:48:58,271 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:58,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:58,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057204562] [2023-12-25 07:48:58,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1057204562] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:48:58,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:48:58,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:48:58,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78649579] [2023-12-25 07:48:58,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:48:58,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:48:58,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:58,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:48:58,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:48:58,275 INFO L87 Difference]: Start difference. First operand 3316 states and 4491 transitions. Second operand has 16 states, 16 states have (on average 9.625) internal successors, (154), 16 states have internal predecessors, (154), 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) [2023-12-25 07:48:59,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:59,230 INFO L93 Difference]: Finished difference Result 11724 states and 15823 transitions. [2023-12-25 07:48:59,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:48:59,231 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.625) internal successors, (154), 16 states have internal predecessors, (154), 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 81 [2023-12-25 07:48:59,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:59,239 INFO L225 Difference]: With dead ends: 11724 [2023-12-25 07:48:59,240 INFO L226 Difference]: Without dead ends: 8458 [2023-12-25 07:48:59,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:48:59,243 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 442 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:59,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 835 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:48:59,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2023-12-25 07:48:59,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 6868. [2023-12-25 07:48:59,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6868 states, 6867 states have (on average 1.3355176933158583) internal successors, (9171), 6867 states have internal predecessors, (9171), 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) [2023-12-25 07:48:59,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6868 states to 6868 states and 9171 transitions. [2023-12-25 07:48:59,408 INFO L78 Accepts]: Start accepts. Automaton has 6868 states and 9171 transitions. Word has length 81 [2023-12-25 07:48:59,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:59,408 INFO L495 AbstractCegarLoop]: Abstraction has 6868 states and 9171 transitions. [2023-12-25 07:48:59,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.625) internal successors, (154), 16 states have internal predecessors, (154), 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) [2023-12-25 07:48:59,408 INFO L276 IsEmpty]: Start isEmpty. Operand 6868 states and 9171 transitions. [2023-12-25 07:48:59,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 07:48:59,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:59,409 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:59,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 07:48:59,611 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 [2023-12-25 07:48:59,612 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:59,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:59,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1921625942, now seen corresponding path program 1 times [2023-12-25 07:48:59,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:59,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244434863] [2023-12-25 07:48:59,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:59,612 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 [2023-12-25 07:48:59,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:59,613 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) [2023-12-25 07:48:59,616 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 [2023-12-25 07:48:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:59,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:48:59,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:59,705 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:59,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:48:59,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:59,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244434863] [2023-12-25 07:48:59,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244434863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:48:59,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:48:59,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:48:59,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801077818] [2023-12-25 07:48:59,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:48:59,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:48:59,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:59,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:48:59,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:59,708 INFO L87 Difference]: Start difference. First operand 6868 states and 9171 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-12-25 07:48:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:59,811 INFO L93 Difference]: Finished difference Result 10200 states and 13606 transitions. [2023-12-25 07:48:59,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:48:59,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83 [2023-12-25 07:48:59,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:59,815 INFO L225 Difference]: With dead ends: 10200 [2023-12-25 07:48:59,815 INFO L226 Difference]: Without dead ends: 3382 [2023-12-25 07:48:59,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:48:59,821 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 31 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:59,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 166 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:48:59,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2023-12-25 07:48:59,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 3380. [2023-12-25 07:48:59,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 3379 states have (on average 1.3131103876886654) internal successors, (4437), 3379 states have internal predecessors, (4437), 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) [2023-12-25 07:48:59,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 4437 transitions. [2023-12-25 07:48:59,911 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 4437 transitions. Word has length 83 [2023-12-25 07:48:59,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:59,911 INFO L495 AbstractCegarLoop]: Abstraction has 3380 states and 4437 transitions. [2023-12-25 07:48:59,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-12-25 07:48:59,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 4437 transitions. [2023-12-25 07:48:59,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 07:48:59,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:59,912 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:59,920 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 [2023-12-25 07:49:00,114 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 [2023-12-25 07:49:00,114 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:00,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:00,115 INFO L85 PathProgramCache]: Analyzing trace with hash 113617773, now seen corresponding path program 1 times [2023-12-25 07:49:00,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:00,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030525225] [2023-12-25 07:49:00,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:00,115 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 [2023-12-25 07:49:00,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:00,116 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) [2023-12-25 07:49:00,148 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 [2023-12-25 07:49:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:00,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:49:00,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:00,671 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:00,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:00,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:00,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030525225] [2023-12-25 07:49:00,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030525225] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:00,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:00,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:49:00,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826175187] [2023-12-25 07:49:00,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:00,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:49:00,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:00,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:49:00,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:49:00,894 INFO L87 Difference]: Start difference. First operand 3380 states and 4437 transitions. Second operand has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 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) [2023-12-25 07:49:01,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:01,734 INFO L93 Difference]: Finished difference Result 9618 states and 12560 transitions. [2023-12-25 07:49:01,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:49:01,734 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 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 84 [2023-12-25 07:49:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:01,739 INFO L225 Difference]: With dead ends: 9618 [2023-12-25 07:49:01,739 INFO L226 Difference]: Without dead ends: 6288 [2023-12-25 07:49:01,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-25 07:49:01,743 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 458 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:01,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 785 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:49:01,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6288 states. [2023-12-25 07:49:01,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6288 to 5758. [2023-12-25 07:49:01,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5758 states, 5757 states have (on average 1.2940767760986625) internal successors, (7450), 5757 states have internal predecessors, (7450), 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) [2023-12-25 07:49:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5758 states to 5758 states and 7450 transitions. [2023-12-25 07:49:01,935 INFO L78 Accepts]: Start accepts. Automaton has 5758 states and 7450 transitions. Word has length 84 [2023-12-25 07:49:01,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:01,935 INFO L495 AbstractCegarLoop]: Abstraction has 5758 states and 7450 transitions. [2023-12-25 07:49:01,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 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) [2023-12-25 07:49:01,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5758 states and 7450 transitions. [2023-12-25 07:49:01,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 07:49:01,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:01,936 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:01,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 07:49:02,139 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 [2023-12-25 07:49:02,139 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:02,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:02,140 INFO L85 PathProgramCache]: Analyzing trace with hash 266457861, now seen corresponding path program 1 times [2023-12-25 07:49:02,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:02,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424559383] [2023-12-25 07:49:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:02,140 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 [2023-12-25 07:49:02,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:02,141 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) [2023-12-25 07:49:02,156 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 (22)] Waiting until timeout for monitored process [2023-12-25 07:49:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:02,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:49:02,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:02,264 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 07:49:02,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:02,334 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 07:49:02,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:02,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424559383] [2023-12-25 07:49:02,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424559383] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:02,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:02,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 07:49:02,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243200614] [2023-12-25 07:49:02,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:02,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 07:49:02,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:02,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 07:49:02,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:49:02,336 INFO L87 Difference]: Start difference. First operand 5758 states and 7450 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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) [2023-12-25 07:49:02,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:02,714 INFO L93 Difference]: Finished difference Result 22082 states and 28206 transitions. [2023-12-25 07:49:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 07:49:02,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 86 [2023-12-25 07:49:02,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:02,729 INFO L225 Difference]: With dead ends: 22082 [2023-12-25 07:49:02,730 INFO L226 Difference]: Without dead ends: 16374 [2023-12-25 07:49:02,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:49:02,735 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 137 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:02,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 378 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:49:02,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16374 states. [2023-12-25 07:49:03,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16374 to 15952. [2023-12-25 07:49:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15952 states, 15951 states have (on average 1.2320230706538775) internal successors, (19652), 15951 states have internal predecessors, (19652), 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) [2023-12-25 07:49:03,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 19652 transitions. [2023-12-25 07:49:03,195 INFO L78 Accepts]: Start accepts. Automaton has 15952 states and 19652 transitions. Word has length 86 [2023-12-25 07:49:03,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:03,195 INFO L495 AbstractCegarLoop]: Abstraction has 15952 states and 19652 transitions. [2023-12-25 07:49:03,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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) [2023-12-25 07:49:03,195 INFO L276 IsEmpty]: Start isEmpty. Operand 15952 states and 19652 transitions. [2023-12-25 07:49:03,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 07:49:03,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:03,201 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:03,206 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 [2023-12-25 07:49:03,403 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 [2023-12-25 07:49:03,404 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:03,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:03,404 INFO L85 PathProgramCache]: Analyzing trace with hash 632869156, now seen corresponding path program 1 times [2023-12-25 07:49:03,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:03,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869826486] [2023-12-25 07:49:03,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:03,405 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 [2023-12-25 07:49:03,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:03,406 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) [2023-12-25 07:49:03,406 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 [2023-12-25 07:49:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:03,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:49:03,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:04,340 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 46 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:04,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:04,725 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 46 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:04,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:04,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869826486] [2023-12-25 07:49:04,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869826486] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:04,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:04,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:49:04,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310108174] [2023-12-25 07:49:04,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:04,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:49:04,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:04,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:49:04,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:49:04,728 INFO L87 Difference]: Start difference. First operand 15952 states and 19652 transitions. Second operand has 26 states, 26 states have (on average 9.153846153846153) internal successors, (238), 25 states have internal predecessors, (238), 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) [2023-12-25 07:49:06,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:06,182 INFO L93 Difference]: Finished difference Result 26604 states and 32923 transitions. [2023-12-25 07:49:06,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 07:49:06,183 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.153846153846153) internal successors, (238), 25 states have internal predecessors, (238), 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 131 [2023-12-25 07:49:06,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:06,200 INFO L225 Difference]: With dead ends: 26604 [2023-12-25 07:49:06,200 INFO L226 Difference]: Without dead ends: 16170 [2023-12-25 07:49:06,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=358, Invalid=1364, Unknown=0, NotChecked=0, Total=1722 [2023-12-25 07:49:06,209 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 716 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:06,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 773 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:49:06,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16170 states. [2023-12-25 07:49:06,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16170 to 15952. [2023-12-25 07:49:06,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15952 states, 15951 states have (on average 1.2181681399285311) internal successors, (19431), 15951 states have internal predecessors, (19431), 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) [2023-12-25 07:49:06,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 19431 transitions. [2023-12-25 07:49:06,744 INFO L78 Accepts]: Start accepts. Automaton has 15952 states and 19431 transitions. Word has length 131 [2023-12-25 07:49:06,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:06,745 INFO L495 AbstractCegarLoop]: Abstraction has 15952 states and 19431 transitions. [2023-12-25 07:49:06,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.153846153846153) internal successors, (238), 25 states have internal predecessors, (238), 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) [2023-12-25 07:49:06,745 INFO L276 IsEmpty]: Start isEmpty. Operand 15952 states and 19431 transitions. [2023-12-25 07:49:06,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 07:49:06,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:06,750 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:06,753 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 [2023-12-25 07:49:06,953 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 [2023-12-25 07:49:06,953 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:06,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:06,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1436289269, now seen corresponding path program 1 times [2023-12-25 07:49:06,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:06,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604219186] [2023-12-25 07:49:06,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:06,954 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 [2023-12-25 07:49:06,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:06,955 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) [2023-12-25 07:49:06,981 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 [2023-12-25 07:49:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:07,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:49:07,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 38 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:07,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:08,264 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 38 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:08,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:08,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604219186] [2023-12-25 07:49:08,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604219186] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:08,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:08,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:49:08,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898404853] [2023-12-25 07:49:08,265 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:08,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:49:08,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:08,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:49:08,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:49:08,267 INFO L87 Difference]: Start difference. First operand 15952 states and 19431 transitions. Second operand has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 25 states have internal predecessors, (244), 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) [2023-12-25 07:49:09,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:09,827 INFO L93 Difference]: Finished difference Result 25612 states and 31446 transitions. [2023-12-25 07:49:09,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:49:09,827 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 25 states have internal predecessors, (244), 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 132 [2023-12-25 07:49:09,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:09,840 INFO L225 Difference]: With dead ends: 25612 [2023-12-25 07:49:09,840 INFO L226 Difference]: Without dead ends: 18738 [2023-12-25 07:49:09,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=392, Invalid=1500, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:49:09,844 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 751 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:09,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 794 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:49:09,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18738 states. [2023-12-25 07:49:10,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18738 to 15952. [2023-12-25 07:49:10,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15952 states, 15951 states have (on average 1.211648172528368) internal successors, (19327), 15951 states have internal predecessors, (19327), 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) [2023-12-25 07:49:10,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 19327 transitions. [2023-12-25 07:49:10,390 INFO L78 Accepts]: Start accepts. Automaton has 15952 states and 19327 transitions. Word has length 132 [2023-12-25 07:49:10,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:10,390 INFO L495 AbstractCegarLoop]: Abstraction has 15952 states and 19327 transitions. [2023-12-25 07:49:10,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 25 states have internal predecessors, (244), 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) [2023-12-25 07:49:10,390 INFO L276 IsEmpty]: Start isEmpty. Operand 15952 states and 19327 transitions. [2023-12-25 07:49:10,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-25 07:49:10,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:10,395 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:10,397 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 [2023-12-25 07:49:10,597 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 [2023-12-25 07:49:10,598 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:10,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:10,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1285607124, now seen corresponding path program 1 times [2023-12-25 07:49:10,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:10,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801839713] [2023-12-25 07:49:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:10,598 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 [2023-12-25 07:49:10,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:10,599 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:49:10,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 07:49:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:10,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:49:10,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:11,581 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 30 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:11,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 30 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:11,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:11,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801839713] [2023-12-25 07:49:11,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801839713] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:11,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:11,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:49:11,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212968441] [2023-12-25 07:49:11,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:11,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:49:11,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:11,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:49:11,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:49:11,869 INFO L87 Difference]: Start difference. First operand 15952 states and 19327 transitions. Second operand has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 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) [2023-12-25 07:49:13,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:13,588 INFO L93 Difference]: Finished difference Result 24580 states and 29978 transitions. [2023-12-25 07:49:13,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:49:13,588 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 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 133 [2023-12-25 07:49:13,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:13,604 INFO L225 Difference]: With dead ends: 24580 [2023-12-25 07:49:13,605 INFO L226 Difference]: Without dead ends: 17946 [2023-12-25 07:49:13,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=391, Invalid=1501, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:49:13,612 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 932 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:13,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 901 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:49:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17946 states. [2023-12-25 07:49:14,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17946 to 15952. [2023-12-25 07:49:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15952 states, 15951 states have (on average 1.2048774371512758) internal successors, (19219), 15951 states have internal predecessors, (19219), 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) [2023-12-25 07:49:14,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 19219 transitions. [2023-12-25 07:49:14,158 INFO L78 Accepts]: Start accepts. Automaton has 15952 states and 19219 transitions. Word has length 133 [2023-12-25 07:49:14,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:14,158 INFO L495 AbstractCegarLoop]: Abstraction has 15952 states and 19219 transitions. [2023-12-25 07:49:14,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 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) [2023-12-25 07:49:14,158 INFO L276 IsEmpty]: Start isEmpty. Operand 15952 states and 19219 transitions. [2023-12-25 07:49:14,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 07:49:14,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:14,163 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:14,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 07:49:14,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:49:14,365 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:14,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:14,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1201270683, now seen corresponding path program 1 times [2023-12-25 07:49:14,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:14,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354223632] [2023-12-25 07:49:14,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:14,366 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 [2023-12-25 07:49:14,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:14,367 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:49:14,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 07:49:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:14,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:49:14,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:15,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:15,618 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:15,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:15,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354223632] [2023-12-25 07:49:15,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [354223632] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:15,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:15,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:49:15,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491263921] [2023-12-25 07:49:15,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:15,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:49:15,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:15,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:49:15,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:49:15,620 INFO L87 Difference]: Start difference. First operand 15952 states and 19219 transitions. Second operand has 26 states, 26 states have (on average 9.846153846153847) internal successors, (256), 25 states have internal predecessors, (256), 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) [2023-12-25 07:49:17,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:17,187 INFO L93 Difference]: Finished difference Result 23434 states and 28361 transitions. [2023-12-25 07:49:17,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:49:17,187 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.846153846153847) internal successors, (256), 25 states have internal predecessors, (256), 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 134 [2023-12-25 07:49:17,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:17,202 INFO L225 Difference]: With dead ends: 23434 [2023-12-25 07:49:17,202 INFO L226 Difference]: Without dead ends: 17070 [2023-12-25 07:49:17,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=391, Invalid=1501, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:49:17,206 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 682 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:17,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 722 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:49:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17070 states. [2023-12-25 07:49:17,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17070 to 15952. [2023-12-25 07:49:17,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15952 states, 15951 states have (on average 1.1979813177857188) internal successors, (19109), 15951 states have internal predecessors, (19109), 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) [2023-12-25 07:49:17,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 19109 transitions. [2023-12-25 07:49:17,796 INFO L78 Accepts]: Start accepts. Automaton has 15952 states and 19109 transitions. Word has length 134 [2023-12-25 07:49:17,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:17,797 INFO L495 AbstractCegarLoop]: Abstraction has 15952 states and 19109 transitions. [2023-12-25 07:49:17,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.846153846153847) internal successors, (256), 25 states have internal predecessors, (256), 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) [2023-12-25 07:49:17,797 INFO L276 IsEmpty]: Start isEmpty. Operand 15952 states and 19109 transitions. [2023-12-25 07:49:17,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:49:17,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:17,801 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:17,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 07:49:18,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:49:18,004 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:18,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:18,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1385075844, now seen corresponding path program 1 times [2023-12-25 07:49:18,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:18,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849678895] [2023-12-25 07:49:18,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:18,005 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 [2023-12-25 07:49:18,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:18,006 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:49:18,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 07:49:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:18,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:49:18,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:19,114 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 13 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:19,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:19,566 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 13 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:19,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:19,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849678895] [2023-12-25 07:49:19,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849678895] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:19,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:19,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:49:19,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297841521] [2023-12-25 07:49:19,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:19,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:49:19,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:19,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:49:19,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:49:19,568 INFO L87 Difference]: Start difference. First operand 15952 states and 19109 transitions. Second operand has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 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) [2023-12-25 07:49:23,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:23,783 INFO L93 Difference]: Finished difference Result 26768 states and 31957 transitions. [2023-12-25 07:49:23,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-25 07:49:23,783 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 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 135 [2023-12-25 07:49:23,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:23,800 INFO L225 Difference]: With dead ends: 26768 [2023-12-25 07:49:23,801 INFO L226 Difference]: Without dead ends: 19412 [2023-12-25 07:49:23,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-25 07:49:23,809 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 880 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:23,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 2090 Invalid, 2196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 07:49:23,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19412 states. [2023-12-25 07:49:24,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19412 to 9924. [2023-12-25 07:49:24,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9924 states, 9923 states have (on average 1.193892975914542) internal successors, (11847), 9923 states have internal predecessors, (11847), 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) [2023-12-25 07:49:24,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9924 states to 9924 states and 11847 transitions. [2023-12-25 07:49:24,258 INFO L78 Accepts]: Start accepts. Automaton has 9924 states and 11847 transitions. Word has length 135 [2023-12-25 07:49:24,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:24,259 INFO L495 AbstractCegarLoop]: Abstraction has 9924 states and 11847 transitions. [2023-12-25 07:49:24,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 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) [2023-12-25 07:49:24,259 INFO L276 IsEmpty]: Start isEmpty. Operand 9924 states and 11847 transitions. [2023-12-25 07:49:24,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:49:24,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:24,261 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:24,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 07:49:24,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:49:24,464 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:24,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:24,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1739781416, now seen corresponding path program 1 times [2023-12-25 07:49:24,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:24,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968416347] [2023-12-25 07:49:24,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:24,465 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 [2023-12-25 07:49:24,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:24,466 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:49:24,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 07:49:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:24,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:49:24,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:25,603 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:25,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:26,026 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:26,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:26,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968416347] [2023-12-25 07:49:26,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968416347] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:26,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:26,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:49:26,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840862078] [2023-12-25 07:49:26,026 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:26,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:49:26,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:26,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:49:26,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:49:26,028 INFO L87 Difference]: Start difference. First operand 9924 states and 11847 transitions. Second operand has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 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) [2023-12-25 07:49:30,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:30,755 INFO L93 Difference]: Finished difference Result 17574 states and 21026 transitions. [2023-12-25 07:49:30,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:49:30,755 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 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 135 [2023-12-25 07:49:30,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:30,769 INFO L225 Difference]: With dead ends: 17574 [2023-12-25 07:49:30,769 INFO L226 Difference]: Without dead ends: 15380 [2023-12-25 07:49:30,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:49:30,772 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 659 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 2835 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 2849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:30,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 2823 Invalid, 2849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2835 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 07:49:30,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15380 states. [2023-12-25 07:49:31,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15380 to 12734. [2023-12-25 07:49:31,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12734 states, 12733 states have (on average 1.1922563417890522) internal successors, (15181), 12733 states have internal predecessors, (15181), 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) [2023-12-25 07:49:31,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12734 states to 12734 states and 15181 transitions. [2023-12-25 07:49:31,323 INFO L78 Accepts]: Start accepts. Automaton has 12734 states and 15181 transitions. Word has length 135 [2023-12-25 07:49:31,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:31,324 INFO L495 AbstractCegarLoop]: Abstraction has 12734 states and 15181 transitions. [2023-12-25 07:49:31,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 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) [2023-12-25 07:49:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 12734 states and 15181 transitions. [2023-12-25 07:49:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:49:31,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:31,326 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:31,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-25 07:49:31,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:49:31,527 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:31,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:31,527 INFO L85 PathProgramCache]: Analyzing trace with hash -769303804, now seen corresponding path program 1 times [2023-12-25 07:49:31,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:31,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970510847] [2023-12-25 07:49:31,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:31,528 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 [2023-12-25 07:49:31,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:31,529 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:49:31,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 07:49:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:31,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:49:31,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:32,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:32,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:32,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970510847] [2023-12-25 07:49:32,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970510847] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:32,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:32,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:49:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404183390] [2023-12-25 07:49:32,987 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:32,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:49:32,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:32,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:49:32,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:49:32,988 INFO L87 Difference]: Start difference. First operand 12734 states and 15181 transitions. Second operand has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 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) [2023-12-25 07:49:37,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:37,091 INFO L93 Difference]: Finished difference Result 22619 states and 27023 transitions. [2023-12-25 07:49:37,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:49:37,092 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 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 135 [2023-12-25 07:49:37,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:37,109 INFO L225 Difference]: With dead ends: 22619 [2023-12-25 07:49:37,109 INFO L226 Difference]: Without dead ends: 19633 [2023-12-25 07:49:37,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:49:37,116 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 747 mSDsluCounter, 1865 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:37,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 2064 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 07:49:37,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19633 states. [2023-12-25 07:49:37,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19633 to 15937. [2023-12-25 07:49:37,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15937 states, 15936 states have (on average 1.1903237951807228) internal successors, (18969), 15936 states have internal predecessors, (18969), 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) [2023-12-25 07:49:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15937 states to 15937 states and 18969 transitions. [2023-12-25 07:49:37,869 INFO L78 Accepts]: Start accepts. Automaton has 15937 states and 18969 transitions. Word has length 135 [2023-12-25 07:49:37,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:37,870 INFO L495 AbstractCegarLoop]: Abstraction has 15937 states and 18969 transitions. [2023-12-25 07:49:37,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 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) [2023-12-25 07:49:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 15937 states and 18969 transitions. [2023-12-25 07:49:37,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:49:37,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:37,873 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:37,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-25 07:49:38,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:49:38,073 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:38,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:38,074 INFO L85 PathProgramCache]: Analyzing trace with hash -271303000, now seen corresponding path program 1 times [2023-12-25 07:49:38,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:38,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480291149] [2023-12-25 07:49:38,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:38,074 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 [2023-12-25 07:49:38,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:38,075 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:49:38,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 07:49:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:38,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:49:38,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 40 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:39,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:39,415 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 40 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:39,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:39,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480291149] [2023-12-25 07:49:39,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480291149] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:39,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:39,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:49:39,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924936079] [2023-12-25 07:49:39,416 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:39,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:49:39,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:39,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:49:39,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:49:39,417 INFO L87 Difference]: Start difference. First operand 15937 states and 18969 transitions. Second operand has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 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) [2023-12-25 07:49:44,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:44,165 INFO L93 Difference]: Finished difference Result 28839 states and 34329 transitions. [2023-12-25 07:49:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-25 07:49:44,166 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 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 135 [2023-12-25 07:49:44,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:44,188 INFO L225 Difference]: With dead ends: 28839 [2023-12-25 07:49:44,188 INFO L226 Difference]: Without dead ends: 24761 [2023-12-25 07:49:44,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-25 07:49:44,193 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 702 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:44,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 2395 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 07:49:44,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24761 states. [2023-12-25 07:49:45,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24761 to 19275. [2023-12-25 07:49:45,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19275 states, 19274 states have (on average 1.1871951852236173) internal successors, (22882), 19274 states have internal predecessors, (22882), 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) [2023-12-25 07:49:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19275 states to 19275 states and 22882 transitions. [2023-12-25 07:49:45,079 INFO L78 Accepts]: Start accepts. Automaton has 19275 states and 22882 transitions. Word has length 135 [2023-12-25 07:49:45,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:45,080 INFO L495 AbstractCegarLoop]: Abstraction has 19275 states and 22882 transitions. [2023-12-25 07:49:45,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 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) [2023-12-25 07:49:45,080 INFO L276 IsEmpty]: Start isEmpty. Operand 19275 states and 22882 transitions. [2023-12-25 07:49:45,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:49:45,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:45,083 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:45,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-25 07:49:45,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:49:45,283 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:45,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:45,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1563033212, now seen corresponding path program 1 times [2023-12-25 07:49:45,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:45,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718807562] [2023-12-25 07:49:45,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:49:45,284 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 [2023-12-25 07:49:45,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:45,285 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:49:45,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 07:49:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:49:45,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:49:45,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 49 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:46,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 49 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:49:46,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:46,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718807562] [2023-12-25 07:49:46,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718807562] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:46,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:46,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:49:46,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745212763] [2023-12-25 07:49:46,772 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:46,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:49:46,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:46,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:49:46,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:49:46,773 INFO L87 Difference]: Start difference. First operand 19275 states and 22882 transitions. Second operand has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 26 states have internal predecessors, (244), 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) [2023-12-25 07:49:53,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:53,608 INFO L93 Difference]: Finished difference Result 56600 states and 66434 transitions. [2023-12-25 07:49:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 07:49:53,609 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 26 states have internal predecessors, (244), 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 135 [2023-12-25 07:49:53,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:53,660 INFO L225 Difference]: With dead ends: 56600 [2023-12-25 07:49:53,660 INFO L226 Difference]: Without dead ends: 50863 [2023-12-25 07:49:53,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-25 07:49:53,668 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 995 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 2767 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 2787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:53,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 2747 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2767 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 07:49:53,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50863 states. [2023-12-25 07:49:55,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50863 to 37148. [2023-12-25 07:49:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37148 states, 37147 states have (on average 1.1783993323821573) internal successors, (43774), 37147 states have internal predecessors, (43774), 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) [2023-12-25 07:49:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37148 states to 37148 states and 43774 transitions. [2023-12-25 07:49:55,642 INFO L78 Accepts]: Start accepts. Automaton has 37148 states and 43774 transitions. Word has length 135 [2023-12-25 07:49:55,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:55,642 INFO L495 AbstractCegarLoop]: Abstraction has 37148 states and 43774 transitions. [2023-12-25 07:49:55,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 26 states have internal predecessors, (244), 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) [2023-12-25 07:49:55,642 INFO L276 IsEmpty]: Start isEmpty. Operand 37148 states and 43774 transitions. [2023-12-25 07:49:55,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 07:49:55,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:55,658 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:55,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-25 07:49:55,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:49:55,859 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:55,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:55,859 INFO L85 PathProgramCache]: Analyzing trace with hash 79489549, now seen corresponding path program 2 times [2023-12-25 07:49:55,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:55,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029875482] [2023-12-25 07:49:55,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:49:55,859 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 [2023-12-25 07:49:55,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:55,860 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:49:55,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-25 07:49:55,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:49:55,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:49:55,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:49:55,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:57,017 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-12-25 07:49:57,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:49:57,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:57,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029875482] [2023-12-25 07:49:57,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029875482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:49:57,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:49:57,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:49:57,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004254924] [2023-12-25 07:49:57,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:49:57,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:49:57,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:57,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:49:57,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:49:57,018 INFO L87 Difference]: Start difference. First operand 37148 states and 43774 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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) [2023-12-25 07:49:59,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:59,116 INFO L93 Difference]: Finished difference Result 51087 states and 61008 transitions. [2023-12-25 07:49:59,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:49:59,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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 186 [2023-12-25 07:49:59,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:59,155 INFO L225 Difference]: With dead ends: 51087 [2023-12-25 07:49:59,156 INFO L226 Difference]: Without dead ends: 42785 [2023-12-25 07:49:59,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:49:59,166 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 310 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:59,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 450 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:49:59,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42785 states. [2023-12-25 07:50:01,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42785 to 37080. [2023-12-25 07:50:01,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37080 states, 37079 states have (on average 1.17047385312441) internal successors, (43400), 37079 states have internal predecessors, (43400), 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) [2023-12-25 07:50:01,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37080 states to 37080 states and 43400 transitions. [2023-12-25 07:50:01,106 INFO L78 Accepts]: Start accepts. Automaton has 37080 states and 43400 transitions. Word has length 186 [2023-12-25 07:50:01,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:50:01,106 INFO L495 AbstractCegarLoop]: Abstraction has 37080 states and 43400 transitions. [2023-12-25 07:50:01,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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) [2023-12-25 07:50:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 37080 states and 43400 transitions. [2023-12-25 07:50:01,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 07:50:01,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:50:01,122 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:50:01,124 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 (32)] Ended with exit code 0 [2023-12-25 07:50:01,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:50:01,324 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:50:01,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:50:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash 434195121, now seen corresponding path program 2 times [2023-12-25 07:50:01,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:50:01,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293176737] [2023-12-25 07:50:01,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:50:01,325 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 [2023-12-25 07:50:01,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:50:01,326 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:50:01,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-25 07:50:01,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:50:01,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:50:01,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:50:01,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:50:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2023-12-25 07:50:02,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:50:02,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:50:02,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293176737] [2023-12-25 07:50:02,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293176737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:50:02,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:50:02,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:50:02,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554768901] [2023-12-25 07:50:02,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:50:02,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:50:02,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:50:02,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:50:02,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:50:02,499 INFO L87 Difference]: Start difference. First operand 37080 states and 43400 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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) [2023-12-25 07:50:04,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:50:04,491 INFO L93 Difference]: Finished difference Result 46922 states and 55740 transitions. [2023-12-25 07:50:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:50:04,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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 186 [2023-12-25 07:50:04,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:50:04,532 INFO L225 Difference]: With dead ends: 46922 [2023-12-25 07:50:04,532 INFO L226 Difference]: Without dead ends: 43836 [2023-12-25 07:50:04,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:50:04,542 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 253 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:50:04,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 507 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:50:04,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43836 states. [2023-12-25 07:50:06,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43836 to 39508. [2023-12-25 07:50:06,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39508 states, 39507 states have (on average 1.1688814640443466) internal successors, (46179), 39507 states have internal predecessors, (46179), 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) [2023-12-25 07:50:06,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39508 states to 39508 states and 46179 transitions. [2023-12-25 07:50:06,703 INFO L78 Accepts]: Start accepts. Automaton has 39508 states and 46179 transitions. Word has length 186 [2023-12-25 07:50:06,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:50:06,704 INFO L495 AbstractCegarLoop]: Abstraction has 39508 states and 46179 transitions. [2023-12-25 07:50:06,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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) [2023-12-25 07:50:06,704 INFO L276 IsEmpty]: Start isEmpty. Operand 39508 states and 46179 transitions. [2023-12-25 07:50:06,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 07:50:06,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:50:06,718 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:50:06,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2023-12-25 07:50:06,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:50:06,919 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:50:06,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:50:06,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2074890099, now seen corresponding path program 2 times [2023-12-25 07:50:06,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:50:06,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161808449] [2023-12-25 07:50:06,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:50:06,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:50:06,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:50:06,921 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:50:06,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-25 07:50:06,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:50:06,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:50:06,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:50:06,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:50:08,170 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2023-12-25 07:50:08,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:50:08,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:50:08,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161808449] [2023-12-25 07:50:08,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161808449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:50:08,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:50:08,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:50:08,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727305186] [2023-12-25 07:50:08,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:50:08,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:50:08,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:50:08,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:50:08,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:50:08,171 INFO L87 Difference]: Start difference. First operand 39508 states and 46179 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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) [2023-12-25 07:50:10,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:50:10,149 INFO L93 Difference]: Finished difference Result 48549 states and 57517 transitions. [2023-12-25 07:50:10,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:50:10,150 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 186 [2023-12-25 07:50:10,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:50:10,190 INFO L225 Difference]: With dead ends: 48549 [2023-12-25 07:50:10,190 INFO L226 Difference]: Without dead ends: 45443 [2023-12-25 07:50:10,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:50:10,201 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 279 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:50:10,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 476 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:50:10,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45443 states. [2023-12-25 07:50:12,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45443 to 42117. [2023-12-25 07:50:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42117 states, 42116 states have (on average 1.1676322537752872) internal successors, (49176), 42116 states have internal predecessors, (49176), 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) [2023-12-25 07:50:12,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42117 states to 42117 states and 49176 transitions. [2023-12-25 07:50:12,404 INFO L78 Accepts]: Start accepts. Automaton has 42117 states and 49176 transitions. Word has length 186 [2023-12-25 07:50:12,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:50:12,405 INFO L495 AbstractCegarLoop]: Abstraction has 42117 states and 49176 transitions. [2023-12-25 07:50:12,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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) [2023-12-25 07:50:12,405 INFO L276 IsEmpty]: Start isEmpty. Operand 42117 states and 49176 transitions. [2023-12-25 07:50:12,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 07:50:12,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:50:12,419 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:50:12,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-25 07:50:12,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:50:12,620 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:50:12,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:50:12,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1576889295, now seen corresponding path program 2 times [2023-12-25 07:50:12,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:50:12,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686381983] [2023-12-25 07:50:12,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:50:12,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:50:12,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:50:12,622 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:50:12,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-25 07:50:12,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:50:12,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:50:12,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:50:12,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:50:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-12-25 07:50:13,721 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:50:13,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:50:13,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686381983] [2023-12-25 07:50:13,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686381983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:50:13,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:50:13,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:50:13,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968558726] [2023-12-25 07:50:13,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:50:13,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:50:13,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:50:13,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:50:13,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:50:13,722 INFO L87 Difference]: Start difference. First operand 42117 states and 49176 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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) [2023-12-25 07:50:15,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:50:15,760 INFO L93 Difference]: Finished difference Result 50742 states and 59996 transitions. [2023-12-25 07:50:15,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:50:15,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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 186 [2023-12-25 07:50:15,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:50:15,799 INFO L225 Difference]: With dead ends: 50742 [2023-12-25 07:50:15,799 INFO L226 Difference]: Without dead ends: 47594 [2023-12-25 07:50:15,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:50:15,806 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 255 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:50:15,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 497 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:50:15,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47594 states. [2023-12-25 07:50:17,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47594 to 44886. [2023-12-25 07:50:17,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44886 states, 44885 states have (on average 1.1666703798596414) internal successors, (52366), 44885 states have internal predecessors, (52366), 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) [2023-12-25 07:50:18,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44886 states to 44886 states and 52366 transitions. [2023-12-25 07:50:18,012 INFO L78 Accepts]: Start accepts. Automaton has 44886 states and 52366 transitions. Word has length 186 [2023-12-25 07:50:18,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:50:18,013 INFO L495 AbstractCegarLoop]: Abstraction has 44886 states and 52366 transitions. [2023-12-25 07:50:18,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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) [2023-12-25 07:50:18,013 INFO L276 IsEmpty]: Start isEmpty. Operand 44886 states and 52366 transitions. [2023-12-25 07:50:18,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 07:50:18,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:50:18,028 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:50:18,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-25 07:50:18,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:50:18,230 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:50:18,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:50:18,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1426347789, now seen corresponding path program 2 times [2023-12-25 07:50:18,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:50:18,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577123081] [2023-12-25 07:50:18,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:50:18,231 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 [2023-12-25 07:50:18,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:50:18,232 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:50:18,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-25 07:50:18,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:50:18,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:50:18,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:50:18,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:50:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2023-12-25 07:50:19,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:50:19,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:50:19,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577123081] [2023-12-25 07:50:19,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577123081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:50:19,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:50:19,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:50:19,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511645784] [2023-12-25 07:50:19,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:50:19,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:50:19,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:50:19,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:50:19,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:50:19,468 INFO L87 Difference]: Start difference. First operand 44886 states and 52366 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 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) [2023-12-25 07:50:21,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:50:21,635 INFO L93 Difference]: Finished difference Result 53598 states and 63287 transitions. [2023-12-25 07:50:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:50:21,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 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 186 [2023-12-25 07:50:21,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:50:21,684 INFO L225 Difference]: With dead ends: 53598 [2023-12-25 07:50:21,684 INFO L226 Difference]: Without dead ends: 50372 [2023-12-25 07:50:21,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:50:21,696 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 317 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:50:21,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 436 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:50:21,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50372 states. [2023-12-25 07:50:24,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50372 to 47664. [2023-12-25 07:50:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47664 states, 47663 states have (on average 1.1658099574093113) internal successors, (55566), 47663 states have internal predecessors, (55566), 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) [2023-12-25 07:50:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47664 states to 47664 states and 55566 transitions. [2023-12-25 07:50:24,207 INFO L78 Accepts]: Start accepts. Automaton has 47664 states and 55566 transitions. Word has length 186 [2023-12-25 07:50:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:50:24,207 INFO L495 AbstractCegarLoop]: Abstraction has 47664 states and 55566 transitions. [2023-12-25 07:50:24,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 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) [2023-12-25 07:50:24,208 INFO L276 IsEmpty]: Start isEmpty. Operand 47664 states and 55566 transitions. [2023-12-25 07:50:24,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:50:24,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:50:24,224 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:50:24,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-25 07:50:24,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:50:24,426 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:50:24,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:50:24,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1973477554, now seen corresponding path program 1 times [2023-12-25 07:50:24,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:50:24,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551078196] [2023-12-25 07:50:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:50:24,427 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 [2023-12-25 07:50:24,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:50:24,428 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:50:24,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-25 07:50:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:50:24,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:50:24,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:50:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 38 proven. 257 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:50:26,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:50:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 38 proven. 257 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:50:26,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:50:26,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551078196] [2023-12-25 07:50:26,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551078196] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:50:26,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:50:26,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:50:26,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090363063] [2023-12-25 07:50:26,996 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:50:26,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:50:26,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:50:26,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:50:26,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:50:26,997 INFO L87 Difference]: Start difference. First operand 47664 states and 55566 transitions. Second operand has 36 states, 36 states have (on average 10.055555555555555) internal successors, (362), 36 states have internal predecessors, (362), 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) [2023-12-25 07:50:40,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:50:40,993 INFO L93 Difference]: Finished difference Result 63502 states and 74078 transitions. [2023-12-25 07:50:40,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-25 07:50:40,993 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.055555555555555) internal successors, (362), 36 states have internal predecessors, (362), 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 187 [2023-12-25 07:50:40,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:50:41,053 INFO L225 Difference]: With dead ends: 63502 [2023-12-25 07:50:41,053 INFO L226 Difference]: Without dead ends: 57648 [2023-12-25 07:50:41,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4412 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-25 07:50:41,069 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 1473 mSDsluCounter, 4699 mSDsCounter, 0 mSdLazyCounter, 5890 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 4999 SdHoareTripleChecker+Invalid, 5913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 5890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:50:41,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 4999 Invalid, 5913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 5890 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-25 07:50:41,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57648 states. [2023-12-25 07:50:42,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57648 to 25898. [2023-12-25 07:50:42,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25898 states, 25897 states have (on average 1.1681661968567787) internal successors, (30252), 25897 states have internal predecessors, (30252), 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) [2023-12-25 07:50:42,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25898 states to 25898 states and 30252 transitions. [2023-12-25 07:50:42,798 INFO L78 Accepts]: Start accepts. Automaton has 25898 states and 30252 transitions. Word has length 187 [2023-12-25 07:50:42,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:50:42,798 INFO L495 AbstractCegarLoop]: Abstraction has 25898 states and 30252 transitions. [2023-12-25 07:50:42,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.055555555555555) internal successors, (362), 36 states have internal predecessors, (362), 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) [2023-12-25 07:50:42,798 INFO L276 IsEmpty]: Start isEmpty. Operand 25898 states and 30252 transitions. [2023-12-25 07:50:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:50:42,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:50:42,805 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:50:42,807 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 (37)] Ended with exit code 0 [2023-12-25 07:50:43,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:50:43,006 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:50:43,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:50:43,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1501247062, now seen corresponding path program 1 times [2023-12-25 07:50:43,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:50:43,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785663113] [2023-12-25 07:50:43,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:50:43,006 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 [2023-12-25 07:50:43,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:50:43,008 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:50:43,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-25 07:50:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:50:43,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:50:43,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:50:44,831 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 54 proven. 241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:50:44,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:50:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 54 proven. 241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:50:45,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:50:45,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785663113] [2023-12-25 07:50:45,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785663113] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:50:45,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:50:45,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:50:45,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695880442] [2023-12-25 07:50:45,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:50:45,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:50:45,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:50:45,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:50:45,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:50:45,475 INFO L87 Difference]: Start difference. First operand 25898 states and 30252 transitions. Second operand has 36 states, 36 states have (on average 9.916666666666666) internal successors, (357), 36 states have internal predecessors, (357), 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) [2023-12-25 07:50:59,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:50:59,687 INFO L93 Difference]: Finished difference Result 40043 states and 46823 transitions. [2023-12-25 07:50:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-25 07:50:59,688 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.916666666666666) internal successors, (357), 36 states have internal predecessors, (357), 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 187 [2023-12-25 07:50:59,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:50:59,718 INFO L225 Difference]: With dead ends: 40043 [2023-12-25 07:50:59,718 INFO L226 Difference]: Without dead ends: 34127 [2023-12-25 07:50:59,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4491 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=2331, Invalid=14961, Unknown=0, NotChecked=0, Total=17292 [2023-12-25 07:50:59,727 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1362 mSDsluCounter, 4626 mSDsCounter, 0 mSdLazyCounter, 5892 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 4931 SdHoareTripleChecker+Invalid, 5919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 5892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:50:59,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 4931 Invalid, 5919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 5892 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-25 07:50:59,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34127 states. [2023-12-25 07:51:01,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34127 to 27721. [2023-12-25 07:51:01,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27721 states, 27720 states have (on average 1.1665945165945166) internal successors, (32338), 27720 states have internal predecessors, (32338), 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) [2023-12-25 07:51:01,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27721 states to 27721 states and 32338 transitions. [2023-12-25 07:51:01,430 INFO L78 Accepts]: Start accepts. Automaton has 27721 states and 32338 transitions. Word has length 187 [2023-12-25 07:51:01,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:51:01,430 INFO L495 AbstractCegarLoop]: Abstraction has 27721 states and 32338 transitions. [2023-12-25 07:51:01,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.916666666666666) internal successors, (357), 36 states have internal predecessors, (357), 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) [2023-12-25 07:51:01,431 INFO L276 IsEmpty]: Start isEmpty. Operand 27721 states and 32338 transitions. [2023-12-25 07:51:01,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:51:01,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:51:01,437 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:51:01,440 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 (38)] Ended with exit code 0 [2023-12-25 07:51:01,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:51:01,639 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:51:01,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:51:01,639 INFO L85 PathProgramCache]: Analyzing trace with hash -240597198, now seen corresponding path program 1 times [2023-12-25 07:51:01,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:51:01,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26651467] [2023-12-25 07:51:01,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:51:01,640 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 [2023-12-25 07:51:01,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:51:01,641 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:51:01,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-25 07:51:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:51:01,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:51:01,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:51:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 70 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:51:03,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:51:04,014 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 70 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:51:04,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:51:04,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26651467] [2023-12-25 07:51:04,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [26651467] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:51:04,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:51:04,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:51:04,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526642525] [2023-12-25 07:51:04,014 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:51:04,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:51:04,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:51:04,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:51:04,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:51:04,016 INFO L87 Difference]: Start difference. First operand 27721 states and 32338 transitions. Second operand has 36 states, 36 states have (on average 9.777777777777779) internal successors, (352), 36 states have internal predecessors, (352), 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) [2023-12-25 07:51:21,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:51:21,609 INFO L93 Difference]: Finished difference Result 43042 states and 50176 transitions. [2023-12-25 07:51:21,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-25 07:51:21,610 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.777777777777779) internal successors, (352), 36 states have internal predecessors, (352), 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 187 [2023-12-25 07:51:21,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:51:21,645 INFO L225 Difference]: With dead ends: 43042 [2023-12-25 07:51:21,646 INFO L226 Difference]: Without dead ends: 36936 [2023-12-25 07:51:21,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6252 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=2857, Invalid=19195, Unknown=0, NotChecked=0, Total=22052 [2023-12-25 07:51:21,657 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1371 mSDsluCounter, 5732 mSDsCounter, 0 mSdLazyCounter, 7198 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 6055 SdHoareTripleChecker+Invalid, 7230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 7198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:51:21,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 6055 Invalid, 7230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 7198 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-25 07:51:21,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36936 states. [2023-12-25 07:51:23,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36936 to 29238. [2023-12-25 07:51:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29238 states, 29237 states have (on average 1.1653384410165202) internal successors, (34071), 29237 states have internal predecessors, (34071), 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) [2023-12-25 07:51:23,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29238 states to 29238 states and 34071 transitions. [2023-12-25 07:51:23,657 INFO L78 Accepts]: Start accepts. Automaton has 29238 states and 34071 transitions. Word has length 187 [2023-12-25 07:51:23,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:51:23,657 INFO L495 AbstractCegarLoop]: Abstraction has 29238 states and 34071 transitions. [2023-12-25 07:51:23,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.777777777777779) internal successors, (352), 36 states have internal predecessors, (352), 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) [2023-12-25 07:51:23,657 INFO L276 IsEmpty]: Start isEmpty. Operand 29238 states and 34071 transitions. [2023-12-25 07:51:23,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:51:23,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:51:23,664 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:51:23,667 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 (39)] Ended with exit code 0 [2023-12-25 07:51:23,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:51:23,864 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:51:23,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:51:23,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1629528106, now seen corresponding path program 1 times [2023-12-25 07:51:23,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:51:23,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216482281] [2023-12-25 07:51:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:51:23,865 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 [2023-12-25 07:51:23,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:51:23,866 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:51:23,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-25 07:51:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:51:23,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:51:23,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:51:25,491 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 86 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:51:25,491 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:51:26,211 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 86 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:51:26,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:51:26,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216482281] [2023-12-25 07:51:26,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216482281] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:51:26,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:51:26,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:51:26,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209613618] [2023-12-25 07:51:26,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:51:26,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:51:26,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:51:26,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:51:26,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:51:26,213 INFO L87 Difference]: Start difference. First operand 29238 states and 34071 transitions. Second operand has 36 states, 36 states have (on average 9.63888888888889) internal successors, (347), 36 states have internal predecessors, (347), 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) [2023-12-25 07:51:45,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:51:45,714 INFO L93 Difference]: Finished difference Result 46255 states and 53679 transitions. [2023-12-25 07:51:45,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-25 07:51:45,715 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.63888888888889) internal successors, (347), 36 states have internal predecessors, (347), 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 187 [2023-12-25 07:51:45,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:51:45,748 INFO L225 Difference]: With dead ends: 46255 [2023-12-25 07:51:45,748 INFO L226 Difference]: Without dead ends: 39665 [2023-12-25 07:51:45,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6979 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-25 07:51:45,757 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 989 mSDsluCounter, 6324 mSDsCounter, 0 mSdLazyCounter, 8319 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 6662 SdHoareTripleChecker+Invalid, 8344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 8319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:51:45,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 6662 Invalid, 8344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 8319 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-25 07:51:45,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39665 states. [2023-12-25 07:51:47,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39665 to 30059. [2023-12-25 07:51:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30059 states, 30058 states have (on average 1.1639164282387384) internal successors, (34985), 30058 states have internal predecessors, (34985), 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) [2023-12-25 07:51:47,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30059 states to 30059 states and 34985 transitions. [2023-12-25 07:51:47,726 INFO L78 Accepts]: Start accepts. Automaton has 30059 states and 34985 transitions. Word has length 187 [2023-12-25 07:51:47,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:51:47,727 INFO L495 AbstractCegarLoop]: Abstraction has 30059 states and 34985 transitions. [2023-12-25 07:51:47,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.63888888888889) internal successors, (347), 36 states have internal predecessors, (347), 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) [2023-12-25 07:51:47,727 INFO L276 IsEmpty]: Start isEmpty. Operand 30059 states and 34985 transitions. [2023-12-25 07:51:47,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-25 07:51:47,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:51:47,733 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:51:47,736 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 (40)] Ended with exit code 0 [2023-12-25 07:51:47,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:51:47,933 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:51:47,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:51:47,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1677512587, now seen corresponding path program 1 times [2023-12-25 07:51:47,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:51:47,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458210539] [2023-12-25 07:51:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:51:47,934 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 [2023-12-25 07:51:47,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:51:47,935 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:51:47,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-25 07:51:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:51:48,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:51:48,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:51:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 32 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:51:49,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:51:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 32 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:51:50,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:51:50,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458210539] [2023-12-25 07:51:50,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458210539] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:51:50,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:51:50,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:51:50,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721332924] [2023-12-25 07:51:50,481 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:51:50,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:51:50,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:51:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:51:50,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:51:50,482 INFO L87 Difference]: Start difference. First operand 30059 states and 34985 transitions. Second operand has 36 states, 36 states have (on average 10.222222222222221) internal successors, (368), 36 states have internal predecessors, (368), 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) [2023-12-25 07:52:05,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:52:05,970 INFO L93 Difference]: Finished difference Result 75356 states and 87243 transitions. [2023-12-25 07:52:05,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-25 07:52:05,970 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.222222222222221) internal successors, (368), 36 states have internal predecessors, (368), 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 188 [2023-12-25 07:52:05,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:52:06,029 INFO L225 Difference]: With dead ends: 75356 [2023-12-25 07:52:06,030 INFO L226 Difference]: Without dead ends: 69218 [2023-12-25 07:52:06,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-25 07:52:06,039 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 820 mSDsluCounter, 4486 mSDsCounter, 0 mSdLazyCounter, 5802 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 4769 SdHoareTripleChecker+Invalid, 5820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 5802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-25 07:52:06,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 4769 Invalid, 5820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 5802 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-25 07:52:06,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69218 states. [2023-12-25 07:52:10,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69218 to 60555. [2023-12-25 07:52:10,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60555 states, 60554 states have (on average 1.1596261188360801) internal successors, (70220), 60554 states have internal predecessors, (70220), 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) [2023-12-25 07:52:10,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60555 states to 60555 states and 70220 transitions. [2023-12-25 07:52:10,179 INFO L78 Accepts]: Start accepts. Automaton has 60555 states and 70220 transitions. Word has length 188 [2023-12-25 07:52:10,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:52:10,179 INFO L495 AbstractCegarLoop]: Abstraction has 60555 states and 70220 transitions. [2023-12-25 07:52:10,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.222222222222221) internal successors, (368), 36 states have internal predecessors, (368), 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) [2023-12-25 07:52:10,180 INFO L276 IsEmpty]: Start isEmpty. Operand 60555 states and 70220 transitions. [2023-12-25 07:52:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-25 07:52:10,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:52:10,211 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:52:10,214 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 (41)] Ended with exit code 0 [2023-12-25 07:52:10,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:52:10,412 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:52:10,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:52:10,412 INFO L85 PathProgramCache]: Analyzing trace with hash 505918395, now seen corresponding path program 2 times [2023-12-25 07:52:10,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:52:10,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666873087] [2023-12-25 07:52:10,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:52:10,413 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 [2023-12-25 07:52:10,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:52:10,414 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:52:10,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-25 07:52:10,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 07:52:10,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:52:10,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:52:10,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:52:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 54 proven. 512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:52:13,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:52:14,011 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 54 proven. 512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:52:14,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:52:14,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666873087] [2023-12-25 07:52:14,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666873087] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:52:14,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:52:14,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:52:14,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682691207] [2023-12-25 07:52:14,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:52:14,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:52:14,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:52:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:52:14,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:52:14,013 INFO L87 Difference]: Start difference. First operand 60555 states and 70220 transitions. Second operand has 46 states, 46 states have (on average 10.08695652173913) internal successors, (464), 46 states have internal predecessors, (464), 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) [2023-12-25 07:52:51,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:52:51,212 INFO L93 Difference]: Finished difference Result 76817 states and 89141 transitions. [2023-12-25 07:52:51,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2023-12-25 07:52:51,212 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.08695652173913) internal successors, (464), 46 states have internal predecessors, (464), 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 238 [2023-12-25 07:52:51,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:52:51,282 INFO L225 Difference]: With dead ends: 76817 [2023-12-25 07:52:51,282 INFO L226 Difference]: Without dead ends: 70782 [2023-12-25 07:52:51,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13783 ImplicationChecksByTransitivity, 23.1s TimeCoverageRelationStatistics Valid=5103, Invalid=41337, Unknown=0, NotChecked=0, Total=46440 [2023-12-25 07:52:51,293 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 1119 mSDsluCounter, 9275 mSDsCounter, 0 mSdLazyCounter, 14071 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 9678 SdHoareTripleChecker+Invalid, 14101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 14071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:52:51,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 9678 Invalid, 14101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 14071 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-12-25 07:52:51,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70782 states. [2023-12-25 07:52:54,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70782 to 31491. [2023-12-25 07:52:54,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31491 states, 31490 states have (on average 1.1635757383296284) internal successors, (36641), 31490 states have internal predecessors, (36641), 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) [2023-12-25 07:52:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31491 states to 31491 states and 36641 transitions. [2023-12-25 07:52:54,227 INFO L78 Accepts]: Start accepts. Automaton has 31491 states and 36641 transitions. Word has length 238 [2023-12-25 07:52:54,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:52:54,227 INFO L495 AbstractCegarLoop]: Abstraction has 31491 states and 36641 transitions. [2023-12-25 07:52:54,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.08695652173913) internal successors, (464), 46 states have internal predecessors, (464), 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) [2023-12-25 07:52:54,228 INFO L276 IsEmpty]: Start isEmpty. Operand 31491 states and 36641 transitions. [2023-12-25 07:52:54,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-25 07:52:54,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:52:54,241 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:52:54,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-12-25 07:52:54,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:52:54,443 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:52:54,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:52:54,443 INFO L85 PathProgramCache]: Analyzing trace with hash 33687903, now seen corresponding path program 2 times [2023-12-25 07:52:54,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:52:54,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455642080] [2023-12-25 07:52:54,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:52:54,444 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 [2023-12-25 07:52:54,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:52:54,450 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:52:54,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-25 07:52:54,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 07:52:54,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:52:54,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:52:54,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:52:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 31 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:52:56,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:52:57,929 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 31 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:52:57,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:52:57,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455642080] [2023-12-25 07:52:57,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455642080] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:52:57,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:52:57,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:52:57,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910255549] [2023-12-25 07:52:57,929 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:52:57,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:52:57,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:52:57,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:52:57,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:52:57,931 INFO L87 Difference]: Start difference. First operand 31491 states and 36641 transitions. Second operand has 46 states, 46 states have (on average 10.217391304347826) internal successors, (470), 46 states have internal predecessors, (470), 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) [2023-12-25 07:53:35,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:53:35,490 INFO L93 Difference]: Finished difference Result 74680 states and 86299 transitions. [2023-12-25 07:53:35,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2023-12-25 07:53:35,491 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.217391304347826) internal successors, (470), 46 states have internal predecessors, (470), 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 238 [2023-12-25 07:53:35,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:53:35,566 INFO L225 Difference]: With dead ends: 74680 [2023-12-25 07:53:35,566 INFO L226 Difference]: Without dead ends: 71854 [2023-12-25 07:53:35,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13085 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=4703, Invalid=39607, Unknown=0, NotChecked=0, Total=44310 [2023-12-25 07:53:35,583 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 1701 mSDsluCounter, 9060 mSDsCounter, 0 mSdLazyCounter, 13215 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 9462 SdHoareTripleChecker+Invalid, 13242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 13215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:53:35,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 9462 Invalid, 13242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 13215 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2023-12-25 07:53:35,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71854 states. [2023-12-25 07:53:39,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71854 to 32795. [2023-12-25 07:53:39,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32795 states, 32794 states have (on average 1.1628956516435933) internal successors, (38136), 32794 states have internal predecessors, (38136), 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) [2023-12-25 07:53:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32795 states to 32795 states and 38136 transitions. [2023-12-25 07:53:39,165 INFO L78 Accepts]: Start accepts. Automaton has 32795 states and 38136 transitions. Word has length 238 [2023-12-25 07:53:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:53:39,166 INFO L495 AbstractCegarLoop]: Abstraction has 32795 states and 38136 transitions. [2023-12-25 07:53:39,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.217391304347826) internal successors, (470), 46 states have internal predecessors, (470), 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) [2023-12-25 07:53:39,166 INFO L276 IsEmpty]: Start isEmpty. Operand 32795 states and 38136 transitions. [2023-12-25 07:53:39,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-25 07:53:39,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:53:39,181 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:53:39,184 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 (43)] Ended with exit code 0 [2023-12-25 07:53:39,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:53:39,381 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:53:39,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:53:39,382 INFO L85 PathProgramCache]: Analyzing trace with hash 432431291, now seen corresponding path program 1 times [2023-12-25 07:53:39,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:53:39,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692506939] [2023-12-25 07:53:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:53:39,382 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 [2023-12-25 07:53:39,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:53:39,383 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2023-12-25 07:53:39,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-25 07:53:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:53:39,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:53:39,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:53:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 100 proven. 466 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:53:41,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:53:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 100 proven. 466 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:53:42,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:53:42,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692506939] [2023-12-25 07:53:42,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692506939] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:53:42,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:53:42,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:53:42,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24740426] [2023-12-25 07:53:42,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:53:42,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:53:42,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:53:42,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:53:42,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:53:42,856 INFO L87 Difference]: Start difference. First operand 32795 states and 38136 transitions. Second operand has 46 states, 46 states have (on average 9.869565217391305) internal successors, (454), 46 states have internal predecessors, (454), 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) [2023-12-25 07:54:29,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:29,038 INFO L93 Difference]: Finished difference Result 45163 states and 52454 transitions. [2023-12-25 07:54:29,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2023-12-25 07:54:29,039 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 9.869565217391305) internal successors, (454), 46 states have internal predecessors, (454), 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 238 [2023-12-25 07:54:29,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:29,078 INFO L225 Difference]: With dead ends: 45163 [2023-12-25 07:54:29,079 INFO L226 Difference]: Without dead ends: 41103 [2023-12-25 07:54:29,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22401 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=7202, Invalid=61180, Unknown=0, NotChecked=0, Total=68382 [2023-12-25 07:54:29,087 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 1722 mSDsluCounter, 9554 mSDsCounter, 0 mSdLazyCounter, 13766 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 10016 SdHoareTripleChecker+Invalid, 13802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 13766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:29,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 10016 Invalid, 13802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 13766 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2023-12-25 07:54:29,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41103 states. [2023-12-25 07:54:31,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41103 to 16321. [2023-12-25 07:54:31,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16321 states, 16320 states have (on average 1.1665441176470588) internal successors, (19038), 16320 states have internal predecessors, (19038), 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) [2023-12-25 07:54:31,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16321 states to 16321 states and 19038 transitions. [2023-12-25 07:54:31,327 INFO L78 Accepts]: Start accepts. Automaton has 16321 states and 19038 transitions. Word has length 238 [2023-12-25 07:54:31,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:31,328 INFO L495 AbstractCegarLoop]: Abstraction has 16321 states and 19038 transitions. [2023-12-25 07:54:31,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.869565217391305) internal successors, (454), 46 states have internal predecessors, (454), 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) [2023-12-25 07:54:31,328 INFO L276 IsEmpty]: Start isEmpty. Operand 16321 states and 19038 transitions. [2023-12-25 07:54:31,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-25 07:54:31,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:31,334 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:31,338 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 (44)] Ended with exit code 0 [2023-12-25 07:54:31,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:31,535 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:31,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:31,535 INFO L85 PathProgramCache]: Analyzing trace with hash -956499617, now seen corresponding path program 1 times [2023-12-25 07:54:31,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:31,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434199578] [2023-12-25 07:54:31,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:31,536 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 [2023-12-25 07:54:31,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:31,537 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2023-12-25 07:54:31,543 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 (45)] Waiting until timeout for monitored process [2023-12-25 07:54:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:31,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:54:31,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:34,086 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 123 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:34,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:54:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 123 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:35,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:35,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434199578] [2023-12-25 07:54:35,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434199578] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:54:35,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:54:35,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:54:35,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992429127] [2023-12-25 07:54:35,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:54:35,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:54:35,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:35,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:54:35,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:54:35,120 INFO L87 Difference]: Start difference. First operand 16321 states and 19038 transitions. Second operand has 46 states, 46 states have (on average 9.76086956521739) internal successors, (449), 46 states have internal predecessors, (449), 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) [2023-12-25 07:55:26,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:55:26,110 INFO L93 Difference]: Finished difference Result 51386 states and 59311 transitions. [2023-12-25 07:55:26,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2023-12-25 07:55:26,111 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 9.76086956521739) internal successors, (449), 46 states have internal predecessors, (449), 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 238 [2023-12-25 07:55:26,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:55:26,157 INFO L225 Difference]: With dead ends: 51386 [2023-12-25 07:55:26,157 INFO L226 Difference]: Without dead ends: 47898 [2023-12-25 07:55:26,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23297 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=7432, Invalid=64124, Unknown=0, NotChecked=0, Total=71556 [2023-12-25 07:55:26,167 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 1434 mSDsluCounter, 11748 mSDsCounter, 0 mSdLazyCounter, 17106 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 12239 SdHoareTripleChecker+Invalid, 17141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 17106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:26,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 12239 Invalid, 17141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 17106 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2023-12-25 07:55:26,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47898 states. [2023-12-25 07:55:30,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47898 to 35307. [2023-12-25 07:55:30,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35307 states, 35306 states have (on average 1.1619554749900867) internal successors, (41024), 35306 states have internal predecessors, (41024), 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) [2023-12-25 07:55:30,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35307 states to 35307 states and 41024 transitions. [2023-12-25 07:55:30,877 INFO L78 Accepts]: Start accepts. Automaton has 35307 states and 41024 transitions. Word has length 238 [2023-12-25 07:55:30,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:55:30,877 INFO L495 AbstractCegarLoop]: Abstraction has 35307 states and 41024 transitions. [2023-12-25 07:55:30,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.76086956521739) internal successors, (449), 46 states have internal predecessors, (449), 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) [2023-12-25 07:55:30,877 INFO L276 IsEmpty]: Start isEmpty. Operand 35307 states and 41024 transitions. [2023-12-25 07:55:30,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-25 07:55:30,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:55:30,891 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:55:30,896 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 (45)] Forceful destruction successful, exit code 0 [2023-12-25 07:55:31,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:55:31,092 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:55:31,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:55:31,092 INFO L85 PathProgramCache]: Analyzing trace with hash -715688004, now seen corresponding path program 2 times [2023-12-25 07:55:31,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:55:31,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611023521] [2023-12-25 07:55:31,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:55:31,093 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 [2023-12-25 07:55:31,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:55:31,094 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2023-12-25 07:55:31,094 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 (46)] Waiting until timeout for monitored process [2023-12-25 07:55:31,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 07:55:31,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:55:31,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:55:31,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:55:31,475 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 14 proven. 510 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-25 07:55:31,475 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:55:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 14 proven. 510 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-25 07:55:31,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:55:31,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611023521] [2023-12-25 07:55:31,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611023521] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:55:31,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:55:31,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-25 07:55:31,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089131141] [2023-12-25 07:55:31,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:55:31,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 07:55:31,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:55:31,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 07:55:31,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:55:31,765 INFO L87 Difference]: Start difference. First operand 35307 states and 41024 transitions. Second operand has 12 states, 12 states have (on average 32.75) internal successors, (393), 12 states have internal predecessors, (393), 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) [2023-12-25 07:55:40,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:55:40,871 INFO L93 Difference]: Finished difference Result 79202 states and 91230 transitions. [2023-12-25 07:55:40,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:55:40,871 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 32.75) internal successors, (393), 12 states have internal predecessors, (393), 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 239 [2023-12-25 07:55:40,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:55:40,932 INFO L225 Difference]: With dead ends: 79202 [2023-12-25 07:55:40,932 INFO L226 Difference]: Without dead ends: 50218 [2023-12-25 07:55:40,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:55:40,943 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 80 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:40,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1621 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:55:40,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50218 states. [2023-12-25 07:55:47,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50218 to 44103. [2023-12-25 07:55:47,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44103 states, 44102 states have (on average 1.1526234637884902) internal successors, (50833), 44102 states have internal predecessors, (50833), 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) [2023-12-25 07:55:47,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44103 states to 44103 states and 50833 transitions. [2023-12-25 07:55:47,457 INFO L78 Accepts]: Start accepts. Automaton has 44103 states and 50833 transitions. Word has length 239 [2023-12-25 07:55:47,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:55:47,457 INFO L495 AbstractCegarLoop]: Abstraction has 44103 states and 50833 transitions. [2023-12-25 07:55:47,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 32.75) internal successors, (393), 12 states have internal predecessors, (393), 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) [2023-12-25 07:55:47,457 INFO L276 IsEmpty]: Start isEmpty. Operand 44103 states and 50833 transitions. [2023-12-25 07:55:47,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-25 07:55:47,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:55:47,470 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:55:47,474 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 (46)] Ended with exit code 0 [2023-12-25 07:55:47,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:55:47,671 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:55:47,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:55:47,672 INFO L85 PathProgramCache]: Analyzing trace with hash -111811316, now seen corresponding path program 1 times [2023-12-25 07:55:47,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:55:47,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137388822] [2023-12-25 07:55:47,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:55:47,672 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 [2023-12-25 07:55:47,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:55:47,674 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2023-12-25 07:55:47,674 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 (47)] Waiting until timeout for monitored process [2023-12-25 07:55:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:55:47,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:55:47,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:55:50,286 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 91 proven. 489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:50,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:55:51,363 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 91 proven. 489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:51,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:55:51,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137388822] [2023-12-25 07:55:51,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137388822] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:55:51,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:55:51,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:55:51,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044178471] [2023-12-25 07:55:51,364 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:55:51,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:55:51,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:55:51,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:55:51,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:55:51,365 INFO L87 Difference]: Start difference. First operand 44103 states and 50833 transitions. Second operand has 46 states, 46 states have (on average 10.0) internal successors, (460), 46 states have internal predecessors, (460), 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) [2023-12-25 07:56:43,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:56:43,733 INFO L93 Difference]: Finished difference Result 114988 states and 132163 transitions. [2023-12-25 07:56:43,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2023-12-25 07:56:43,734 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.0) internal successors, (460), 46 states have internal predecessors, (460), 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 239 [2023-12-25 07:56:43,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:56:43,853 INFO L225 Difference]: With dead ends: 114988 [2023-12-25 07:56:43,853 INFO L226 Difference]: Without dead ends: 108407 [2023-12-25 07:56:43,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17864 ImplicationChecksByTransitivity, 29.0s TimeCoverageRelationStatistics Valid=6041, Invalid=50841, Unknown=0, NotChecked=0, Total=56882 [2023-12-25 07:56:43,866 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 1483 mSDsluCounter, 9143 mSDsCounter, 0 mSdLazyCounter, 13368 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 9578 SdHoareTripleChecker+Invalid, 13403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 13368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:56:43,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 9578 Invalid, 13403 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 13368 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2023-12-25 07:56:43,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108407 states. [2023-12-25 07:56:57,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108407 to 92622. [2023-12-25 07:56:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92622 states, 92621 states have (on average 1.149372172617441) internal successors, (106456), 92621 states have internal predecessors, (106456), 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) [2023-12-25 07:56:57,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92622 states to 92622 states and 106456 transitions. [2023-12-25 07:56:57,315 INFO L78 Accepts]: Start accepts. Automaton has 92622 states and 106456 transitions. Word has length 239 [2023-12-25 07:56:57,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:56:57,315 INFO L495 AbstractCegarLoop]: Abstraction has 92622 states and 106456 transitions. [2023-12-25 07:56:57,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.0) internal successors, (460), 46 states have internal predecessors, (460), 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) [2023-12-25 07:56:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 92622 states and 106456 transitions. [2023-12-25 07:56:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-12-25 07:56:57,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:56:57,389 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:56:57,392 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 (47)] Ended with exit code 0 [2023-12-25 07:56:57,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:56:57,589 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:56:57,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:56:57,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1740336658, now seen corresponding path program 3 times [2023-12-25 07:56:57,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:56:57,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331597728] [2023-12-25 07:56:57,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-25 07:56:57,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:56:57,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:56:57,591 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2023-12-25 07:56:57,593 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 (48)] Waiting until timeout for monitored process [2023-12-25 07:56:57,845 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2023-12-25 07:56:57,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:56:57,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-25 07:56:57,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:57:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 236 proven. 678 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 07:57:03,058 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:57:07,268 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 320 proven. 594 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 07:57:07,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:57:07,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331597728] [2023-12-25 07:57:07,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331597728] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:57:07,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:57:07,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 55 [2023-12-25 07:57:07,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779260612] [2023-12-25 07:57:07,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:57:07,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-12-25 07:57:07,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:57:07,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-12-25 07:57:07,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=2738, Unknown=0, NotChecked=0, Total=2970 [2023-12-25 07:57:07,271 INFO L87 Difference]: Start difference. First operand 92622 states and 106456 transitions. Second operand has 55 states, 55 states have (on average 10.218181818181819) internal successors, (562), 55 states have internal predecessors, (562), 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) Received shutdown request... [2023-12-25 08:02:54,484 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 [2023-12-25 08:02:54,484 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 (48)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 08:02:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 452 states. [2023-12-25 08:02:55,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1138 GetRequests, 636 SyntacticMatches, 2 SemanticMatches, 499 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98354 ImplicationChecksByTransitivity, 321.5s TimeCoverageRelationStatistics Valid=23621, Invalid=226879, Unknown=0, NotChecked=0, Total=250500 [2023-12-25 08:02:55,449 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 2521 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 5608 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 5746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 5608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2023-12-25 08:02:55,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2521 Valid, 2504 Invalid, 5746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 5608 Invalid, 0 Unknown, 0 Unchecked, 21.4s Time] [2023-12-25 08:02:55,450 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 08:02:55,456 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 (48)] Forceful destruction successful, exit code 0 [2023-12-25 08:02:55,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 08:02:55,651 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (92622states) and FLOYD_HOARE automaton (currently 452 states, 55 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 501 known predicates. [2023-12-25 08:02:55,655 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 08:02:55,656 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 08:02:55,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 08:02:55 BoogieIcfgContainer [2023-12-25 08:02:55,658 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 08:02:55,658 INFO L158 Benchmark]: Toolchain (without parser) took 852447.21ms. Allocated memory was 205.5MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 165.8MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-25 08:02:55,658 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 205.5MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 08:02:55,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.09ms. Allocated memory is still 205.5MB. Free memory was 165.8MB in the beginning and 149.5MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-25 08:02:55,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.71ms. Allocated memory is still 205.5MB. Free memory was 149.5MB in the beginning and 147.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-25 08:02:55,658 INFO L158 Benchmark]: Boogie Preprocessor took 53.00ms. Allocated memory is still 205.5MB. Free memory was 147.1MB in the beginning and 144.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-25 08:02:55,658 INFO L158 Benchmark]: RCFGBuilder took 527.61ms. Allocated memory is still 205.5MB. Free memory was 144.0MB in the beginning and 115.3MB in the end (delta: 28.7MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-25 08:02:55,659 INFO L158 Benchmark]: TraceAbstraction took 851572.73ms. Allocated memory was 278.9MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 248.8MB in the beginning and 1.6GB in the end (delta: -1.3GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-25 08:02:55,659 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 205.5MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.09ms. Allocated memory is still 205.5MB. Free memory was 165.8MB in the beginning and 149.5MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.71ms. Allocated memory is still 205.5MB. Free memory was 149.5MB in the beginning and 147.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 53.00ms. Allocated memory is still 205.5MB. Free memory was 147.1MB in the beginning and 144.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 527.61ms. Allocated memory is still 205.5MB. Free memory was 144.0MB in the beginning and 115.3MB in the end (delta: 28.7MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 851572.73ms. Allocated memory was 278.9MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 248.8MB in the beginning and 1.6GB in the end (delta: -1.3GB). Peak memory consumption was 2.3GB. 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: 426]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 426). Cancelled while NwaCegarLoop was constructing difference of abstraction (92622states) and FLOYD_HOARE automaton (currently 452 states, 55 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 501 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 851.5s, OverallIterations: 47, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.3s, AutomataDifference: 711.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28263 SdHoareTripleChecker+Valid, 117.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28263 mSDsluCounter, 108876 SdHoareTripleChecker+Invalid, 106.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100174 mSDsCounter, 678 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130569 IncrementalHoareTripleChecker+Invalid, 131247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 678 mSolverCounterUnsat, 8702 mSDtfsCounter, 130569 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12785 GetRequests, 9704 SyntacticMatches, 2 SemanticMatches, 3078 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222450 ImplicationChecksByTransitivity, 522.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92622occurred in iteration=46, InterpolantAutomatonStates: 2050, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 64.9s AutomataMinimizationTime, 46 MinimizatonAttempts, 270532 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 60.9s InterpolantComputationTime, 6117 NumberOfCodeBlocks, 5487 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 10379 ConstructedInterpolants, 3420 QuantifiedInterpolants, 164875 SizeOfPredicates, 286 NumberOfNonLiveVariables, 11575 ConjunctsInSsa, 497 ConjunctsInUnsatCore, 74 InterpolantComputations, 20 PerfectInterpolantSequences, 4299/15369 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