/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/array-multidimensional/max-3-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 19:09:56,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 19:09:56,641 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 19:09:56,646 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 19:09:56,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 19:09:56,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 19:09:56,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 19:09:56,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 19:09:56,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 19:09:56,680 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 19:09:56,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 19:09:56,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 19:09:56,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 19:09:56,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 19:09:56,681 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 19:09:56,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 19:09:56,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 19:09:56,682 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 19:09:56,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 19:09:56,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 19:09:56,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 19:09:56,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 19:09:56,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 19:09:56,684 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 19:09:56,684 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 19:09:56,684 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 19:09:56,685 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 19:09:56,685 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 19:09:56,685 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 19:09:56,685 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 19:09:56,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 19:09:56,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 19:09:56,686 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 19:09:56,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 19:09:56,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 19:09:56,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 19:09:56,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 19:09:56,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 19:09:56,687 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 19:09:56,687 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 19:09:56,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 19:09:56,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 19:09:56,687 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 19:09:56,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 19:09:56,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 19:09:56,688 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 19:09:56,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 19:09:56,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 19:09:56,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 19:09:56,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 19:09:56,855 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 19:09:56,856 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 19:09:56,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/max-3-n-u.c [2023-12-21 19:09:57,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 19:09:58,059 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 19:09:58,060 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/max-3-n-u.c [2023-12-21 19:09:58,064 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64bc75dde/846c7c9bb8ed4185814f00446fb4924c/FLAGb286fbf3e [2023-12-21 19:09:58,074 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64bc75dde/846c7c9bb8ed4185814f00446fb4924c [2023-12-21 19:09:58,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 19:09:58,076 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 19:09:58,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 19:09:58,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 19:09:58,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 19:09:58,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782aa537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58, skipping insertion in model container [2023-12-21 19:09:58,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,093 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 19:09:58,175 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/max-3-n-u.c[321,334] [2023-12-21 19:09:58,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 19:09:58,196 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 19:09:58,203 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/max-3-n-u.c[321,334] [2023-12-21 19:09:58,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 19:09:58,218 INFO L206 MainTranslator]: Completed translation [2023-12-21 19:09:58,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58 WrapperNode [2023-12-21 19:09:58,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 19:09:58,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 19:09:58,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 19:09:58,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 19:09:58,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,247 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2023-12-21 19:09:58,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 19:09:58,247 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 19:09:58,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 19:09:58,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 19:09:58,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,273 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2023-12-21 19:09:58,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 19:09:58,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 19:09:58,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 19:09:58,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 19:09:58,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (1/1) ... [2023-12-21 19:09:58,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 19:09:58,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 19:09:58,345 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) [2023-12-21 19:09:58,402 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 [2023-12-21 19:09:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 19:09:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 19:09:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-21 19:09:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-21 19:09:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-21 19:09:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-21 19:09:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 19:09:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 19:09:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 19:09:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-21 19:09:58,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-21 19:09:58,496 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 19:09:58,497 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 19:09:58,814 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 19:09:58,851 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 19:09:58,852 INFO L309 CfgBuilder]: Removed 9 assume(true) statements. [2023-12-21 19:09:58,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 07:09:58 BoogieIcfgContainer [2023-12-21 19:09:58,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 19:09:58,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 19:09:58,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 19:09:58,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 19:09:58,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 07:09:58" (1/3) ... [2023-12-21 19:09:58,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78274828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 07:09:58, skipping insertion in model container [2023-12-21 19:09:58,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:09:58" (2/3) ... [2023-12-21 19:09:58,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78274828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 07:09:58, skipping insertion in model container [2023-12-21 19:09:58,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 07:09:58" (3/3) ... [2023-12-21 19:09:58,867 INFO L112 eAbstractionObserver]: Analyzing ICFG max-3-n-u.c [2023-12-21 19:09:58,878 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 19:09:58,879 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 19:09:58,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 19:09:58,915 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;@54729dfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 19:09:58,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 19:09:58,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.875) internal successors, (45), 25 states have internal predecessors, (45), 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) [2023-12-21 19:09:58,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-21 19:09:58,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:09:58,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:09:58,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:09:58,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:09:58,927 INFO L85 PathProgramCache]: Analyzing trace with hash -930939884, now seen corresponding path program 1 times [2023-12-21 19:09:58,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:09:58,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536329369] [2023-12-21 19:09:58,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:09:58,936 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 [2023-12-21 19:09:58,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:09:58,938 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) [2023-12-21 19:09:58,939 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 [2023-12-21 19:09:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:09:59,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 19:09:59,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:09:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:09:59,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:09:59,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:09:59,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536329369] [2023-12-21 19:09:59,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536329369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:09:59,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:09:59,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 19:09:59,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160536828] [2023-12-21 19:09:59,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:09:59,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 19:09:59,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:09:59,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 19:09:59,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 19:09:59,159 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.875) internal successors, (45), 25 states have internal predecessors, (45), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-12-21 19:09:59,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:09:59,178 INFO L93 Difference]: Finished difference Result 51 states and 89 transitions. [2023-12-21 19:09:59,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 19:09:59,180 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2023-12-21 19:09:59,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:09:59,185 INFO L225 Difference]: With dead ends: 51 [2023-12-21 19:09:59,185 INFO L226 Difference]: Without dead ends: 24 [2023-12-21 19:09:59,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 19:09:59,189 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 19:09:59,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 19:09:59,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-21 19:09:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-12-21 19:09:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.434782608695652) internal successors, (33), 23 states have internal predecessors, (33), 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) [2023-12-21 19:09:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2023-12-21 19:09:59,209 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 33 transitions. Word has length 10 [2023-12-21 19:09:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:09:59,209 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 33 transitions. [2023-12-21 19:09:59,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-12-21 19:09:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-12-21 19:09:59,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-21 19:09:59,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:09:59,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:09:59,216 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 [2023-12-21 19:09:59,413 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 [2023-12-21 19:09:59,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:09:59,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:09:59,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1753086454, now seen corresponding path program 1 times [2023-12-21 19:09:59,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:09:59,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416784059] [2023-12-21 19:09:59,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:09:59,417 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 [2023-12-21 19:09:59,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:09:59,418 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) [2023-12-21 19:09:59,426 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 [2023-12-21 19:09:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:09:59,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 19:09:59,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:09:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:09:59,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:09:59,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:09:59,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416784059] [2023-12-21 19:09:59,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416784059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:09:59,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:09:59,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 19:09:59,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468052326] [2023-12-21 19:09:59,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:09:59,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 19:09:59,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:09:59,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 19:09:59,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 19:09:59,504 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-12-21 19:09:59,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:09:59,685 INFO L93 Difference]: Finished difference Result 47 states and 65 transitions. [2023-12-21 19:09:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 19:09:59,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2023-12-21 19:09:59,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:09:59,689 INFO L225 Difference]: With dead ends: 47 [2023-12-21 19:09:59,689 INFO L226 Difference]: Without dead ends: 29 [2023-12-21 19:09:59,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 19:09:59,691 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 19:09:59,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 47 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 19:09:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-12-21 19:09:59,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2023-12-21 19:09:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 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) [2023-12-21 19:09:59,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2023-12-21 19:09:59,696 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2023-12-21 19:09:59,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:09:59,696 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2023-12-21 19:09:59,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-12-21 19:09:59,696 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2023-12-21 19:09:59,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-21 19:09:59,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:09:59,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:09:59,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-21 19:09:59,897 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 [2023-12-21 19:09:59,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:09:59,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:09:59,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1762293580, now seen corresponding path program 1 times [2023-12-21 19:09:59,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:09:59,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962683174] [2023-12-21 19:09:59,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:09:59,899 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 [2023-12-21 19:09:59,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:09:59,901 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) [2023-12-21 19:09:59,902 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 [2023-12-21 19:09:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:09:59,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 19:09:59,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:09:59,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:09:59,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:09:59,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:09:59,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962683174] [2023-12-21 19:09:59,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962683174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:09:59,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:09:59,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 19:09:59,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217033541] [2023-12-21 19:09:59,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:09:59,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 19:09:59,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:09:59,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 19:09:59,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:09:59,964 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-12-21 19:10:00,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:10:00,303 INFO L93 Difference]: Finished difference Result 66 states and 92 transitions. [2023-12-21 19:10:00,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 19:10:00,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2023-12-21 19:10:00,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:10:00,304 INFO L225 Difference]: With dead ends: 66 [2023-12-21 19:10:00,304 INFO L226 Difference]: Without dead ends: 43 [2023-12-21 19:10:00,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:10:00,305 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 47 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 19:10:00,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 33 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 19:10:00,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-21 19:10:00,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2023-12-21 19:10:00,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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) [2023-12-21 19:10:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2023-12-21 19:10:00,310 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 13 [2023-12-21 19:10:00,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:10:00,310 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2023-12-21 19:10:00,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-12-21 19:10:00,311 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2023-12-21 19:10:00,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-21 19:10:00,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:10:00,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:10:00,316 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 [2023-12-21 19:10:00,514 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 [2023-12-21 19:10:00,514 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:10:00,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:10:00,515 INFO L85 PathProgramCache]: Analyzing trace with hash 501424532, now seen corresponding path program 1 times [2023-12-21 19:10:00,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:10:00,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153234698] [2023-12-21 19:10:00,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:10:00,516 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 [2023-12-21 19:10:00,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:10:00,519 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) [2023-12-21 19:10:00,523 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 [2023-12-21 19:10:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:10:00,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 19:10:00,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:10:00,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:10:00,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:10:00,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:10:00,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153234698] [2023-12-21 19:10:00,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153234698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:10:00,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:10:00,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 19:10:00,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599454241] [2023-12-21 19:10:00,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:10:00,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 19:10:00,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:10:00,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 19:10:00,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:10:00,591 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-12-21 19:10:00,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:10:00,892 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2023-12-21 19:10:00,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 19:10:00,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-12-21 19:10:00,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:10:00,893 INFO L225 Difference]: With dead ends: 66 [2023-12-21 19:10:00,893 INFO L226 Difference]: Without dead ends: 40 [2023-12-21 19:10:00,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:10:00,895 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 54 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 19:10:00,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 38 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 19:10:00,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-12-21 19:10:00,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2023-12-21 19:10:00,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 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) [2023-12-21 19:10:00,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2023-12-21 19:10:00,900 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 16 [2023-12-21 19:10:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:10:00,900 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2023-12-21 19:10:00,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-12-21 19:10:00,900 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2023-12-21 19:10:00,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-21 19:10:00,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:10:00,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:10:00,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-21 19:10:01,101 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 [2023-12-21 19:10:01,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:10:01,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:10:01,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1794806821, now seen corresponding path program 1 times [2023-12-21 19:10:01,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:10:01,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008922150] [2023-12-21 19:10:01,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:10:01,103 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 [2023-12-21 19:10:01,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:10:01,105 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) [2023-12-21 19:10:01,111 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 [2023-12-21 19:10:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:10:01,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 19:10:01,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:10:01,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:10:01,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:10:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:10:01,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:10:01,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008922150] [2023-12-21 19:10:01,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008922150] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:10:01,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:10:01,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-21 19:10:01,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001688041] [2023-12-21 19:10:01,277 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:10:01,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 19:10:01,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:10:01,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 19:10:01,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 19:10:01,278 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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) [2023-12-21 19:10:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:10:01,900 INFO L93 Difference]: Finished difference Result 90 states and 121 transitions. [2023-12-21 19:10:01,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 19:10:01,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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 17 [2023-12-21 19:10:01,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:10:01,901 INFO L225 Difference]: With dead ends: 90 [2023-12-21 19:10:01,901 INFO L226 Difference]: Without dead ends: 61 [2023-12-21 19:10:01,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-21 19:10:01,902 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 159 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 19:10:01,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 62 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 19:10:01,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-21 19:10:01,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2023-12-21 19:10:01,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 51 states have internal predecessors, (67), 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) [2023-12-21 19:10:01,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2023-12-21 19:10:01,912 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 17 [2023-12-21 19:10:01,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:10:01,912 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2023-12-21 19:10:01,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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) [2023-12-21 19:10:01,913 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2023-12-21 19:10:01,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-21 19:10:01,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:10:01,913 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:10:01,926 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 (6)] Forceful destruction successful, exit code 0 [2023-12-21 19:10:02,118 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 [2023-12-21 19:10:02,118 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:10:02,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:10:02,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1634975188, now seen corresponding path program 2 times [2023-12-21 19:10:02,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:10:02,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018174031] [2023-12-21 19:10:02,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 19:10:02,119 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 [2023-12-21 19:10:02,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:10:02,120 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) [2023-12-21 19:10:02,133 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 [2023-12-21 19:10:02,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 19:10:02,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:10:02,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 19:10:02,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:10:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 19:10:02,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:10:02,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:10:02,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018174031] [2023-12-21 19:10:02,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018174031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:10:02,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:10:02,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 19:10:02,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294768257] [2023-12-21 19:10:02,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:10:02,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 19:10:02,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:10:02,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 19:10:02,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:10:02,195 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-12-21 19:10:02,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:10:02,540 INFO L93 Difference]: Finished difference Result 120 states and 154 transitions. [2023-12-21 19:10:02,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 19:10:02,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 [2023-12-21 19:10:02,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:10:02,548 INFO L225 Difference]: With dead ends: 120 [2023-12-21 19:10:02,548 INFO L226 Difference]: Without dead ends: 99 [2023-12-21 19:10:02,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:10:02,549 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 49 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 19:10:02,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 38 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 19:10:02,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-21 19:10:02,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 53. [2023-12-21 19:10:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 52 states have internal predecessors, (68), 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) [2023-12-21 19:10:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2023-12-21 19:10:02,559 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 20 [2023-12-21 19:10:02,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:10:02,559 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2023-12-21 19:10:02,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-12-21 19:10:02,560 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2023-12-21 19:10:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-21 19:10:02,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:10:02,560 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 19:10:02,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-21 19:10:02,761 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 [2023-12-21 19:10:02,761 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:10:02,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:10:02,762 INFO L85 PathProgramCache]: Analyzing trace with hash 446762308, now seen corresponding path program 1 times [2023-12-21 19:10:02,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:10:02,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981619718] [2023-12-21 19:10:02,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:10:02,762 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 [2023-12-21 19:10:02,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:10:02,763 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) [2023-12-21 19:10:02,765 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 [2023-12-21 19:10:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:10:02,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 19:10:02,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:10:02,900 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 19:10:02,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:10:03,049 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 19:10:03,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:10:03,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981619718] [2023-12-21 19:10:03,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981619718] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:10:03,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:10:03,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-21 19:10:03,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871934019] [2023-12-21 19:10:03,050 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:10:03,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 19:10:03,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:10:03,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 19:10:03,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-12-21 19:10:03,051 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 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) [2023-12-21 19:10:04,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:10:04,894 INFO L93 Difference]: Finished difference Result 165 states and 216 transitions. [2023-12-21 19:10:04,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 19:10:04,894 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 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 38 [2023-12-21 19:10:04,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:10:04,895 INFO L225 Difference]: With dead ends: 165 [2023-12-21 19:10:04,895 INFO L226 Difference]: Without dead ends: 114 [2023-12-21 19:10:04,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2023-12-21 19:10:04,896 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 305 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 19:10:04,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 212 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 19:10:04,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-21 19:10:04,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 95. [2023-12-21 19:10:04,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.297872340425532) internal successors, (122), 94 states have internal predecessors, (122), 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) [2023-12-21 19:10:04,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2023-12-21 19:10:04,917 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 38 [2023-12-21 19:10:04,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:10:04,917 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2023-12-21 19:10:04,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 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) [2023-12-21 19:10:04,917 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2023-12-21 19:10:04,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 19:10:04,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:10:04,918 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:10:04,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-21 19:10:05,124 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 [2023-12-21 19:10:05,124 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:10:05,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:10:05,125 INFO L85 PathProgramCache]: Analyzing trace with hash 528775908, now seen corresponding path program 2 times [2023-12-21 19:10:05,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:10:05,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464427935] [2023-12-21 19:10:05,125 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 19:10:05,125 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 [2023-12-21 19:10:05,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:10:05,126 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) [2023-12-21 19:10:05,132 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 (9)] Waiting until timeout for monitored process [2023-12-21 19:10:05,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 19:10:05,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:10:05,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 19:10:05,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:10:05,426 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-12-21 19:10:05,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:10:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-12-21 19:10:05,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:10:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464427935] [2023-12-21 19:10:05,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464427935] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:10:05,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:10:05,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-21 19:10:05,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546752073] [2023-12-21 19:10:05,888 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:10:05,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 19:10:05,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:10:05,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 19:10:05,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-12-21 19:10:05,889 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. Second operand has 26 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 25 states have internal predecessors, (49), 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) [2023-12-21 19:10:10,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:10:10,794 INFO L93 Difference]: Finished difference Result 315 states and 408 transitions. [2023-12-21 19:10:10,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-21 19:10:10,794 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 25 states have internal predecessors, (49), 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 62 [2023-12-21 19:10:10,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:10:10,795 INFO L225 Difference]: With dead ends: 315 [2023-12-21 19:10:10,795 INFO L226 Difference]: Without dead ends: 222 [2023-12-21 19:10:10,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=479, Invalid=853, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 19:10:10,797 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 1421 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-21 19:10:10,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 664 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-21 19:10:10,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-12-21 19:10:10,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 179. [2023-12-21 19:10:10,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.2921348314606742) internal successors, (230), 178 states have internal predecessors, (230), 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) [2023-12-21 19:10:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 230 transitions. [2023-12-21 19:10:10,825 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 230 transitions. Word has length 62 [2023-12-21 19:10:10,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:10:10,825 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 230 transitions. [2023-12-21 19:10:10,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 25 states have internal predecessors, (49), 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) [2023-12-21 19:10:10,825 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 230 transitions. [2023-12-21 19:10:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 19:10:10,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:10:10,830 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:10:10,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-21 19:10:11,036 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 [2023-12-21 19:10:11,037 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:10:11,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:10:11,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1963556388, now seen corresponding path program 3 times [2023-12-21 19:10:11,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:10:11,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969379937] [2023-12-21 19:10:11,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 19:10:11,038 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 [2023-12-21 19:10:11,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:10:11,039 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) [2023-12-21 19:10:11,045 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 (10)] Waiting until timeout for monitored process [2023-12-21 19:10:11,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-21 19:10:11,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:10:11,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 19:10:11,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:10:11,429 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 971 trivial. 0 not checked. [2023-12-21 19:10:11,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:10:11,603 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 971 trivial. 0 not checked. [2023-12-21 19:10:11,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:10:11,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969379937] [2023-12-21 19:10:11,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969379937] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:10:11,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:10:11,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-21 19:10:11,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147307703] [2023-12-21 19:10:11,603 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:10:11,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 19:10:11,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:10:11,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 19:10:11,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 19:10:11,605 INFO L87 Difference]: Start difference. First operand 179 states and 230 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2023-12-21 19:10:12,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:10:12,227 INFO L93 Difference]: Finished difference Result 851 states and 1103 transitions. [2023-12-21 19:10:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 19:10:12,228 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 110 [2023-12-21 19:10:12,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:10:12,231 INFO L225 Difference]: With dead ends: 851 [2023-12-21 19:10:12,231 INFO L226 Difference]: Without dead ends: 702 [2023-12-21 19:10:12,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-21 19:10:12,236 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 181 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 19:10:12,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 92 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 19:10:12,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-12-21 19:10:12,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 479. [2023-12-21 19:10:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 478 states have (on average 1.2719665271966527) internal successors, (608), 478 states have internal predecessors, (608), 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) [2023-12-21 19:10:12,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 608 transitions. [2023-12-21 19:10:12,294 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 608 transitions. Word has length 110 [2023-12-21 19:10:12,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:10:12,295 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 608 transitions. [2023-12-21 19:10:12,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2023-12-21 19:10:12,295 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 608 transitions. [2023-12-21 19:10:12,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2023-12-21 19:10:12,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:10:12,299 INFO L195 NwaCegarLoop]: trace histogram [88, 88, 88, 88, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:10:12,314 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 [2023-12-21 19:10:12,503 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 [2023-12-21 19:10:12,503 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:10:12,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:10:12,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1962970286, now seen corresponding path program 4 times [2023-12-21 19:10:12,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:10:12,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483323657] [2023-12-21 19:10:12,505 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-21 19:10:12,505 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 [2023-12-21 19:10:12,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:10:12,525 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) [2023-12-21 19:10:12,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-21 19:10:13,030 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-21 19:10:13,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:10:13,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-21 19:10:13,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:10:13,490 INFO L134 CoverageAnalysis]: Checked inductivity of 16128 backedges. 1598 proven. 253 refuted. 0 times theorem prover too weak. 14277 trivial. 0 not checked. [2023-12-21 19:10:13,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:10:15,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16128 backedges. 1598 proven. 253 refuted. 0 times theorem prover too weak. 14277 trivial. 0 not checked. [2023-12-21 19:10:15,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:10:15,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483323657] [2023-12-21 19:10:15,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483323657] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:10:15,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:10:15,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 49 [2023-12-21 19:10:15,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559662404] [2023-12-21 19:10:15,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:10:15,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-21 19:10:15,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:10:15,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-21 19:10:15,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2023-12-21 19:10:15,079 INFO L87 Difference]: Start difference. First operand 479 states and 608 transitions. Second operand has 50 states, 50 states have (on average 1.54) internal successors, (77), 49 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) [2023-12-21 19:10:31,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:10:31,674 INFO L93 Difference]: Finished difference Result 1502 states and 2051 transitions. [2023-12-21 19:10:31,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-21 19:10:31,682 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 1.54) internal successors, (77), 49 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 410 [2023-12-21 19:10:31,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:10:31,685 INFO L225 Difference]: With dead ends: 1502 [2023-12-21 19:10:31,685 INFO L226 Difference]: Without dead ends: 1026 [2023-12-21 19:10:31,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1823, Invalid=3433, Unknown=0, NotChecked=0, Total=5256 [2023-12-21 19:10:31,690 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 5226 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 3583 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5226 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 4947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 3583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-12-21 19:10:31,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5226 Valid, 2476 Invalid, 4947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1364 Valid, 3583 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2023-12-21 19:10:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2023-12-21 19:10:31,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 935. [2023-12-21 19:10:31,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 934 states have (on average 1.2676659528907923) internal successors, (1184), 934 states have internal predecessors, (1184), 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) [2023-12-21 19:10:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1184 transitions. [2023-12-21 19:10:31,788 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1184 transitions. Word has length 410 [2023-12-21 19:10:31,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:10:31,788 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 1184 transitions. [2023-12-21 19:10:31,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 1.54) internal successors, (77), 49 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) [2023-12-21 19:10:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1184 transitions. [2023-12-21 19:10:31,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2023-12-21 19:10:31,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:10:31,800 INFO L195 NwaCegarLoop]: trace histogram [184, 184, 184, 184, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:10:31,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-21 19:10:32,021 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 [2023-12-21 19:10:32,021 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:10:32,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:10:32,022 INFO L85 PathProgramCache]: Analyzing trace with hash -932625746, now seen corresponding path program 5 times [2023-12-21 19:10:32,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:10:32,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865080176] [2023-12-21 19:10:32,023 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-21 19:10:32,023 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 [2023-12-21 19:10:32,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:10:32,025 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) [2023-12-21 19:10:32,025 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 [2023-12-21 19:14:12,118 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 189 check-sat command(s) [2023-12-21 19:14:12,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:14:12,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 1958 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 19:14:12,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:14:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 68928 backedges. 32239 proven. 1 refuted. 0 times theorem prover too weak. 36688 trivial. 0 not checked. [2023-12-21 19:14:12,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:14:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 68928 backedges. 25793 proven. 6447 refuted. 0 times theorem prover too weak. 36688 trivial. 0 not checked. [2023-12-21 19:14:14,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:14:14,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865080176] [2023-12-21 19:14:14,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865080176] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:14:14,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:14:14,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-12-21 19:14:14,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372772579] [2023-12-21 19:14:14,106 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:14:14,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 19:14:14,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:14:14,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 19:14:14,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 19:14:14,107 INFO L87 Difference]: Start difference. First operand 935 states and 1184 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 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) [2023-12-21 19:14:14,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:14:14,961 INFO L93 Difference]: Finished difference Result 4528 states and 5765 transitions. [2023-12-21 19:14:14,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 19:14:14,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 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 794 [2023-12-21 19:14:14,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:14:14,970 INFO L225 Difference]: With dead ends: 4528 [2023-12-21 19:14:14,970 INFO L226 Difference]: Without dead ends: 3645 [2023-12-21 19:14:14,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1589 GetRequests, 1579 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2023-12-21 19:14:14,971 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 129 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 19:14:14,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 79 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 19:14:14,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3645 states. [2023-12-21 19:14:15,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3645 to 3638. [2023-12-21 19:14:15,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 1.2658784712675282) internal successors, (4604), 3637 states have internal predecessors, (4604), 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) [2023-12-21 19:14:15,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 4604 transitions. [2023-12-21 19:14:15,276 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 4604 transitions. Word has length 794 [2023-12-21 19:14:15,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:14:15,277 INFO L495 AbstractCegarLoop]: Abstraction has 3638 states and 4604 transitions. [2023-12-21 19:14:15,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 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) [2023-12-21 19:14:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 4604 transitions. [2023-12-21 19:14:15,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3075 [2023-12-21 19:14:15,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:14:15,327 INFO L195 NwaCegarLoop]: trace histogram [736, 736, 736, 736, 16, 16, 16, 16, 16, 16, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:14:15,406 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 [2023-12-21 19:14:15,540 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 [2023-12-21 19:14:15,540 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:14:15,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:14:15,541 INFO L85 PathProgramCache]: Analyzing trace with hash 261749366, now seen corresponding path program 6 times [2023-12-21 19:14:15,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:14:15,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036162221] [2023-12-21 19:14:15,570 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-21 19:14:15,570 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 [2023-12-21 19:14:15,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:14:15,571 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) [2023-12-21 19:14:15,573 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 [2023-12-21 19:14:16,793 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2023-12-21 19:14:16,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:14:16,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 19:14:16,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:14:19,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-21 19:14:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1106364 backedges. 1509 proven. 0 refuted. 0 times theorem prover too weak. 1104855 trivial. 0 not checked. [2023-12-21 19:14:20,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:14:20,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:14:20,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036162221] [2023-12-21 19:14:20,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036162221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:14:20,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:14:20,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 19:14:20,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034397718] [2023-12-21 19:14:20,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:14:20,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 19:14:20,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:14:20,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 19:14:20,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 19:14:20,025 INFO L87 Difference]: Start difference. First operand 3638 states and 4604 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 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) [2023-12-21 19:14:20,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:14:20,614 INFO L93 Difference]: Finished difference Result 7033 states and 9130 transitions. [2023-12-21 19:14:20,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 19:14:20,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 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 3074 [2023-12-21 19:14:20,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:14:20,626 INFO L225 Difference]: With dead ends: 7033 [2023-12-21 19:14:20,626 INFO L226 Difference]: Without dead ends: 4198 [2023-12-21 19:14:20,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3074 GetRequests, 3068 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-21 19:14:20,629 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 46 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 19:14:20,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 39 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 19:14:20,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2023-12-21 19:14:21,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 3638. [2023-12-21 19:14:21,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 1.2656035193841078) internal successors, (4603), 3637 states have internal predecessors, (4603), 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) [2023-12-21 19:14:21,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 4603 transitions. [2023-12-21 19:14:21,017 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 4603 transitions. Word has length 3074 [2023-12-21 19:14:21,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:14:21,019 INFO L495 AbstractCegarLoop]: Abstraction has 3638 states and 4603 transitions. [2023-12-21 19:14:21,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 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) [2023-12-21 19:14:21,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 4603 transitions. [2023-12-21 19:14:21,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3075 [2023-12-21 19:14:21,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:14:21,080 INFO L195 NwaCegarLoop]: trace histogram [736, 736, 736, 735, 16, 16, 16, 16, 16, 16, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:14:21,088 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 [2023-12-21 19:14:21,288 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 [2023-12-21 19:14:21,288 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:14:21,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:14:21,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1019587124, now seen corresponding path program 1 times [2023-12-21 19:14:21,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:14:21,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703829399] [2023-12-21 19:14:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:14:21,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:14:21,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:14:21,302 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) [2023-12-21 19:14:21,302 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 [2023-12-21 19:14:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:14:26,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 7573 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-21 19:14:26,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:14:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1106364 backedges. 33158 proven. 1081 refuted. 0 times theorem prover too weak. 1072125 trivial. 0 not checked. [2023-12-21 19:14:27,577 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:14:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1106364 backedges. 33158 proven. 1081 refuted. 0 times theorem prover too weak. 1072125 trivial. 0 not checked. [2023-12-21 19:14:33,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:14:33,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703829399] [2023-12-21 19:14:33,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703829399] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:14:33,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:14:33,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 97 [2023-12-21 19:14:33,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898647614] [2023-12-21 19:14:33,471 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:14:33,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2023-12-21 19:14:33,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:14:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2023-12-21 19:14:33,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2497, Invalid=7009, Unknown=0, NotChecked=0, Total=9506 [2023-12-21 19:14:33,476 INFO L87 Difference]: Start difference. First operand 3638 states and 4603 transitions. Second operand has 98 states, 98 states have (on average 1.2857142857142858) internal successors, (126), 97 states have internal predecessors, (126), 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) [2023-12-21 19:15:55,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:15:55,619 INFO L93 Difference]: Finished difference Result 11061 states and 15585 transitions. [2023-12-21 19:15:55,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-21 19:15:55,620 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 1.2857142857142858) internal successors, (126), 97 states have internal predecessors, (126), 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 3074 [2023-12-21 19:15:55,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:15:55,663 INFO L225 Difference]: With dead ends: 11061 [2023-12-21 19:15:55,663 INFO L226 Difference]: Without dead ends: 7473 [2023-12-21 19:15:55,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6193 GetRequests, 6050 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3384 ImplicationChecksByTransitivity, 46.4s TimeCoverageRelationStatistics Valid=7103, Invalid=13777, Unknown=0, NotChecked=0, Total=20880 [2023-12-21 19:15:55,687 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 14905 mSDsluCounter, 9371 mSDsCounter, 0 mSdLazyCounter, 14101 mSolverCounterSat, 4346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14905 SdHoareTripleChecker+Valid, 9578 SdHoareTripleChecker+Invalid, 18447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4346 IncrementalHoareTripleChecker+Valid, 14101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.9s IncrementalHoareTripleChecker+Time [2023-12-21 19:15:55,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14905 Valid, 9578 Invalid, 18447 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4346 Valid, 14101 Invalid, 0 Unknown, 0 Unchecked, 40.9s Time] [2023-12-21 19:15:55,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7473 states. [2023-12-21 19:15:56,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7473 to 7286. [2023-12-21 19:15:56,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7286 states, 7285 states have (on average 1.264378860672615) internal successors, (9211), 7285 states have internal predecessors, (9211), 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) [2023-12-21 19:15:56,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7286 states to 7286 states and 9211 transitions. [2023-12-21 19:15:56,397 INFO L78 Accepts]: Start accepts. Automaton has 7286 states and 9211 transitions. Word has length 3074 [2023-12-21 19:15:56,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:15:56,397 INFO L495 AbstractCegarLoop]: Abstraction has 7286 states and 9211 transitions. [2023-12-21 19:15:56,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 1.2857142857142858) internal successors, (126), 97 states have internal predecessors, (126), 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) [2023-12-21 19:15:56,398 INFO L276 IsEmpty]: Start isEmpty. Operand 7286 states and 9211 transitions. [2023-12-21 19:15:56,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6147 [2023-12-21 19:15:56,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:15:56,617 INFO L195 NwaCegarLoop]: trace histogram [1504, 1504, 1504, 1503, 16, 16, 16, 16, 16, 16, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:15:56,767 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 [2023-12-21 19:15:56,824 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 [2023-12-21 19:15:56,825 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:15:56,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:15:56,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1129280972, now seen corresponding path program 2 times [2023-12-21 19:15:56,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:15:56,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775844353] [2023-12-21 19:15:56,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 19:15:56,834 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 [2023-12-21 19:15:56,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:15:56,836 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) [2023-12-21 19:15:56,836 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 [2023-12-21 19:16:07,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 19:16:07,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:16:09,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 15253 conjuncts, 97 conjunts are in the unsatisfiable core [2023-12-21 19:16:09,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:16:13,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4570044 backedges. 135398 proven. 4465 refuted. 0 times theorem prover too weak. 4430181 trivial. 0 not checked. [2023-12-21 19:16:13,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:16:35,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4570044 backedges. 135398 proven. 4465 refuted. 0 times theorem prover too weak. 4430181 trivial. 0 not checked. [2023-12-21 19:16:35,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:16:35,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775844353] [2023-12-21 19:16:35,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775844353] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:16:35,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:16:35,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2023-12-21 19:16:35,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482474347] [2023-12-21 19:16:35,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:16:35,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2023-12-21 19:16:35,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:16:35,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2023-12-21 19:16:35,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2023-12-21 19:16:35,953 INFO L87 Difference]: Start difference. First operand 7286 states and 9211 transitions. Second operand has 194 states, 194 states have (on average 1.1443298969072164) internal successors, (222), 193 states have internal predecessors, (222), 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... [2023-12-21 19:24:35,138 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 (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 19:24:35,138 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 [2023-12-21 19:24:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2023-12-21 19:24:35,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12385 GetRequests, 12098 SyntacticMatches, 0 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13680 ImplicationChecksByTransitivity, 404.2s TimeCoverageRelationStatistics Valid=28031, Invalid=55201, Unknown=0, NotChecked=0, Total=83232 [2023-12-21 19:24:35,158 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 24207 mSDsluCounter, 9373 mSDsCounter, 0 mSdLazyCounter, 36909 mSolverCounterSat, 8206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24207 SdHoareTripleChecker+Valid, 9477 SdHoareTripleChecker+Invalid, 45115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8206 IncrementalHoareTripleChecker+Valid, 36909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.8s IncrementalHoareTripleChecker+Time [2023-12-21 19:24:35,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24207 Valid, 9477 Invalid, 45115 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8206 Valid, 36909 Invalid, 0 Unknown, 0 Unchecked, 97.8s Time] [2023-12-21 19:24:35,159 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 19:24:35,360 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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)] Forcibly destroying the process [2023-12-21 19:24:35,445 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 137 [2023-12-21 19:24:35,445 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 [2023-12-21 19:24:35,446 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (7286states) and FLOYD_HOARE automaton (currently 193 states, 194 states before enhancement),while ReachableStatesComputation was computing reachable states (6971 states constructed, input type IntersectNwa). [2023-12-21 19:24:35,449 INFO L445 BasicCegarLoop]: Path program histogram: [6, 2, 2, 1, 1, 1, 1] [2023-12-21 19:24:35,450 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 19:24:35,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 07:24:35 BoogieIcfgContainer [2023-12-21 19:24:35,452 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 19:24:35,452 INFO L158 Benchmark]: Toolchain (without parser) took 877376.00ms. Allocated memory was 285.2MB in the beginning and 1.1GB in the end (delta: 782.2MB). Free memory was 242.9MB in the beginning and 406.0MB in the end (delta: -163.1MB). Peak memory consumption was 717.1MB. Max. memory is 8.0GB. [2023-12-21 19:24:35,452 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory is still 130.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 19:24:35,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 142.42ms. Allocated memory is still 285.2MB. Free memory was 242.9MB in the beginning and 231.0MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-21 19:24:35,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.60ms. Allocated memory is still 285.2MB. Free memory was 231.0MB in the beginning and 229.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 19:24:35,452 INFO L158 Benchmark]: Boogie Preprocessor took 40.10ms. Allocated memory is still 285.2MB. Free memory was 229.3MB in the beginning and 227.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 19:24:35,453 INFO L158 Benchmark]: RCFGBuilder took 562.00ms. Allocated memory is still 285.2MB. Free memory was 227.2MB in the beginning and 211.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 19:24:35,453 INFO L158 Benchmark]: TraceAbstraction took 876598.05ms. Allocated memory was 285.2MB in the beginning and 1.1GB in the end (delta: 782.2MB). Free memory was 210.9MB in the beginning and 406.0MB in the end (delta: -195.2MB). Peak memory consumption was 685.6MB. Max. memory is 8.0GB. [2023-12-21 19:24:35,454 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory is still 130.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 142.42ms. Allocated memory is still 285.2MB. Free memory was 242.9MB in the beginning and 231.0MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.60ms. Allocated memory is still 285.2MB. Free memory was 231.0MB in the beginning and 229.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.10ms. Allocated memory is still 285.2MB. Free memory was 229.3MB in the beginning and 227.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 562.00ms. Allocated memory is still 285.2MB. Free memory was 227.2MB in the beginning and 211.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 876598.05ms. Allocated memory was 285.2MB in the beginning and 1.1GB in the end (delta: 782.2MB). Free memory was 210.9MB in the beginning and 406.0MB in the end (delta: -195.2MB). Peak memory consumption was 685.6MB. 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: 7]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 7). Cancelled while NwaCegarLoop was constructing difference of abstraction (7286states) and FLOYD_HOARE automaton (currently 193 states, 194 states before enhancement),while ReachableStatesComputation was computing reachable states (6971 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 876.5s, OverallIterations: 14, TraceHistogramMax: 1504, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.4s, AutomataDifference: 588.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46735 SdHoareTripleChecker+Valid, 159.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46735 mSDsluCounter, 22868 SdHoareTripleChecker+Invalid, 140.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22112 mSDsCounter, 14565 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56134 IncrementalHoareTripleChecker+Invalid, 70699 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14565 mSolverCounterUnsat, 756 mSDtfsCounter, 56134 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24612 GetRequests, 24020 SyntacticMatches, 0 SemanticMatches, 592 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18170 ImplicationChecksByTransitivity, 458.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7286occurred in iteration=13, InterpolantAutomatonStates: 230, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 1213 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.1s SsaConstructionTime, 234.0s SatisfiabilityAnalysisTime, 44.4s InterpolantComputationTime, 13794 NumberOfCodeBlocks, 10660 NumberOfCodeBlocksAsserted, 213 NumberOfCheckSat, 24423 ConstructedInterpolants, 0 QuantifiedInterpolants, 39059 SizeOfPredicates, 8 NumberOfNonLiveVariables, 26524 ConjunctsInSsa, 226 ConjunctsInUnsatCore, 22 InterpolantComputations, 6 PerfectInterpolantSequences, 12613557/12631737 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