/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-industry-pattern/array_single_elem_init.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:53:21,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:53:21,479 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 06:53:21,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:53:21,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:53:21,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:53:21,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:53:21,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:53:21,504 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:53:21,506 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:53:21,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:53:21,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:53:21,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:53:21,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:53:21,509 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:53:21,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:53:21,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:53:21,509 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:53:21,509 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:53:21,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:53:21,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:53:21,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:53:21,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:53:21,510 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 06:53:21,510 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 06:53:21,510 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:53:21,511 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 06:53:21,511 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:53:21,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:53:21,511 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:53:21,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:53:21,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:53:21,512 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:53:21,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:53:21,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:53:21,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:53:21,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:53:21,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:53:21,513 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 06:53:21,513 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 06:53:21,513 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:53:21,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:53:21,513 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:53:21,513 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:53:21,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:53:21,513 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 06:53:21,514 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 06:53:21,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:53:21,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:53:21,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:53:21,734 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:53:21,734 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:53:21,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_single_elem_init.i [2023-12-16 06:53:22,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:53:22,917 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:53:22,918 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_single_elem_init.i [2023-12-16 06:53:22,922 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a63bdcf7/e574f6e513fa4c58a2d7602f733e50dd/FLAG1cd2d083f [2023-12-16 06:53:22,934 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a63bdcf7/e574f6e513fa4c58a2d7602f733e50dd [2023-12-16 06:53:22,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:53:22,936 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:53:22,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:53:22,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:53:22,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:53:22,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:53:22" (1/1) ... [2023-12-16 06:53:22,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8cdaf5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:22, skipping insertion in model container [2023-12-16 06:53:22,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:53:22" (1/1) ... [2023-12-16 06:53:22,958 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:53:23,094 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-industry-pattern/array_single_elem_init.i[815,828] [2023-12-16 06:53:23,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:53:23,125 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:53:23,136 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-industry-pattern/array_single_elem_init.i[815,828] [2023-12-16 06:53:23,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:53:23,157 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:53:23,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23 WrapperNode [2023-12-16 06:53:23,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:53:23,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:53:23,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:53:23,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:53:23,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,190 INFO L138 Inliner]: procedures = 18, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2023-12-16 06:53:23,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:53:23,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:53:23,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:53:23,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:53:23,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,200 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,208 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 4, 2, 3]. 36 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 6 writes are split as follows [0, 3, 1, 2]. [2023-12-16 06:53:23,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:53:23,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:53:23,220 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:53:23,220 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:53:23,220 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (1/1) ... [2023-12-16 06:53:23,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:53:23,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:53:23,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 06:53:23,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 06:53:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:53:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 06:53:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 06:53:23,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 06:53:23,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 06:53:23,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 06:53:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 06:53:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 06:53:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 06:53:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-16 06:53:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:53:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:53:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 06:53:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 06:53:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 06:53:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 06:53:23,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-16 06:53:23,343 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:53:23,344 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:53:23,469 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:53:23,506 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:53:23,506 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 06:53:23,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:53:23 BoogieIcfgContainer [2023-12-16 06:53:23,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:53:23,512 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:53:23,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:53:23,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:53:23,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:53:22" (1/3) ... [2023-12-16 06:53:23,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666ba784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:53:23, skipping insertion in model container [2023-12-16 06:53:23,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:53:23" (2/3) ... [2023-12-16 06:53:23,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666ba784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:53:23, skipping insertion in model container [2023-12-16 06:53:23,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:53:23" (3/3) ... [2023-12-16 06:53:23,517 INFO L112 eAbstractionObserver]: Analyzing ICFG array_single_elem_init.i [2023-12-16 06:53:23,530 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:53:23,530 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:53:23,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:53:23,572 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;@685c7d4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:53:23,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:53:23,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 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) [2023-12-16 06:53:23,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 06:53:23,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:23,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:23,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:23,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:23,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1382620246, now seen corresponding path program 1 times [2023-12-16 06:53:23,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:23,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657737609] [2023-12-16 06:53:23,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:53:23,596 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:23,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:23,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:23,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 06:53:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:53:23,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 06:53:23,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:53:23,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:53:23,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:23,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657737609] [2023-12-16 06:53:23,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657737609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:53:23,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:53:23,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 06:53:23,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497585781] [2023-12-16 06:53:23,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:53:23,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 06:53:23,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:23,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 06:53:23,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 06:53:23,731 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-12-16 06:53:23,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:23,753 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2023-12-16 06:53:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 06:53:23,755 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-12-16 06:53:23,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:23,760 INFO L225 Difference]: With dead ends: 27 [2023-12-16 06:53:23,760 INFO L226 Difference]: Without dead ends: 15 [2023-12-16 06:53:23,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 06:53:23,765 INFO L413 NwaCegarLoop]: 20 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, 20 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 [2023-12-16 06:53:23,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:53:23,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-16 06:53:23,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-16 06:53:23,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:23,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2023-12-16 06:53:23,788 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 20 transitions. Word has length 7 [2023-12-16 06:53:23,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:23,789 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-12-16 06:53:23,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-12-16 06:53:23,789 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2023-12-16 06:53:23,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 06:53:23,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:23,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:23,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:23,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:23,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:23,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:23,993 INFO L85 PathProgramCache]: Analyzing trace with hash -2069719870, now seen corresponding path program 1 times [2023-12-16 06:53:23,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:23,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568171177] [2023-12-16 06:53:23,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:53:23,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:23,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:23,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:23,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 06:53:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:53:24,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 06:53:24,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:53:24,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:53:24,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:24,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568171177] [2023-12-16 06:53:24,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568171177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:53:24,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:53:24,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 06:53:24,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212210319] [2023-12-16 06:53:24,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:53:24,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:53:24,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:24,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:53:24,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:53:24,071 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-12-16 06:53:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:24,136 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2023-12-16 06:53:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:53:24,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-12-16 06:53:24,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:24,138 INFO L225 Difference]: With dead ends: 32 [2023-12-16 06:53:24,138 INFO L226 Difference]: Without dead ends: 24 [2023-12-16 06:53:24,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:53:24,140 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:24,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 15 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:53:24,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-16 06:53:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2023-12-16 06:53:24,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 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) [2023-12-16 06:53:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2023-12-16 06:53:24,150 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2023-12-16 06:53:24,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:24,150 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2023-12-16 06:53:24,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-12-16 06:53:24,151 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-12-16 06:53:24,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-16 06:53:24,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:24,151 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:24,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:24,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:24,354 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:24,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:24,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1677809430, now seen corresponding path program 1 times [2023-12-16 06:53:24,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:24,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975922993] [2023-12-16 06:53:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:53:24,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:24,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:24,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:24,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 06:53:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:53:24,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 06:53:24,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:24,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-16 06:53:24,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:53:24,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:53:24,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:24,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975922993] [2023-12-16 06:53:24,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975922993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:53:24,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:53:24,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:53:24,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840909439] [2023-12-16 06:53:24,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:53:24,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:53:24,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:24,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:53:24,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:53:24,456 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-12-16 06:53:24,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:24,534 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2023-12-16 06:53:24,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:53:24,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 15 [2023-12-16 06:53:24,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:24,536 INFO L225 Difference]: With dead ends: 38 [2023-12-16 06:53:24,536 INFO L226 Difference]: Without dead ends: 22 [2023-12-16 06:53:24,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:53:24,537 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:24,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 35 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:53:24,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-16 06:53:24,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2023-12-16 06:53:24,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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) [2023-12-16 06:53:24,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2023-12-16 06:53:24,541 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 15 [2023-12-16 06:53:24,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:24,541 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-12-16 06:53:24,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-12-16 06:53:24,542 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-12-16 06:53:24,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-16 06:53:24,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:24,542 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:24,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:24,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:24,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:24,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:24,746 INFO L85 PathProgramCache]: Analyzing trace with hash 2030351852, now seen corresponding path program 1 times [2023-12-16 06:53:24,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:24,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802956077] [2023-12-16 06:53:24,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:53:24,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:24,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:24,748 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:24,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 06:53:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:53:24,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 06:53:24,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:53:24,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:24,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:53:24,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:24,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802956077] [2023-12-16 06:53:24,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802956077] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:24,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:24,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-16 06:53:24,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460826482] [2023-12-16 06:53:24,871 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:24,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:53:24,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:24,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:53:24,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:53:24,872 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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) [2023-12-16 06:53:24,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:24,986 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2023-12-16 06:53:24,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:53:24,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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 15 [2023-12-16 06:53:24,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:24,987 INFO L225 Difference]: With dead ends: 62 [2023-12-16 06:53:24,987 INFO L226 Difference]: Without dead ends: 52 [2023-12-16 06:53:24,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:53:24,988 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 69 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:24,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 24 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:53:24,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-12-16 06:53:24,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2023-12-16 06:53:24,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 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) [2023-12-16 06:53:24,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2023-12-16 06:53:24,993 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 15 [2023-12-16 06:53:24,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:24,993 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2023-12-16 06:53:24,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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) [2023-12-16 06:53:24,993 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2023-12-16 06:53:24,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-16 06:53:24,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:24,994 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:24,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 06:53:25,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:25,195 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:25,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:25,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1681832322, now seen corresponding path program 2 times [2023-12-16 06:53:25,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:25,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475203264] [2023-12-16 06:53:25,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:53:25,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:25,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:25,197 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:25,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 06:53:25,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 06:53:25,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:53:25,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 06:53:25,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 06:53:25,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:25,459 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 06:53:25,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:25,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475203264] [2023-12-16 06:53:25,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475203264] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:25,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:25,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-16 06:53:25,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765561592] [2023-12-16 06:53:25,460 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:25,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 06:53:25,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:25,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 06:53:25,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:53:25,461 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 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) [2023-12-16 06:53:25,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:25,908 INFO L93 Difference]: Finished difference Result 131 states and 177 transitions. [2023-12-16 06:53:25,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 06:53:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 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 33 [2023-12-16 06:53:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:25,911 INFO L225 Difference]: With dead ends: 131 [2023-12-16 06:53:25,911 INFO L226 Difference]: Without dead ends: 118 [2023-12-16 06:53:25,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-12-16 06:53:25,912 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 245 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:25,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 84 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:53:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-16 06:53:25,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 104. [2023-12-16 06:53:25,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 103 states have internal predecessors, (136), 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) [2023-12-16 06:53:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2023-12-16 06:53:25,921 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 136 transitions. Word has length 33 [2023-12-16 06:53:25,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:25,921 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 136 transitions. [2023-12-16 06:53:25,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 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) [2023-12-16 06:53:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 136 transitions. [2023-12-16 06:53:25,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 06:53:25,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:25,922 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:25,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:26,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:26,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:26,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:26,124 INFO L85 PathProgramCache]: Analyzing trace with hash 600957812, now seen corresponding path program 3 times [2023-12-16 06:53:26,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:26,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317409815] [2023-12-16 06:53:26,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 06:53:26,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:26,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:26,125 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:26,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 06:53:26,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-16 06:53:26,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:53:26,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 06:53:26,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-16 06:53:26,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:26,335 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-16 06:53:26,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:26,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317409815] [2023-12-16 06:53:26,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317409815] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:26,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:26,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-16 06:53:26,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863960849] [2023-12-16 06:53:26,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:26,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 06:53:26,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:26,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 06:53:26,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-12-16 06:53:26,337 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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) [2023-12-16 06:53:26,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:26,812 INFO L93 Difference]: Finished difference Result 156 states and 207 transitions. [2023-12-16 06:53:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:53:26,812 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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) Word has length 72 [2023-12-16 06:53:26,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:26,813 INFO L225 Difference]: With dead ends: 156 [2023-12-16 06:53:26,813 INFO L226 Difference]: Without dead ends: 149 [2023-12-16 06:53:26,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=235, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:53:26,814 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 374 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:26,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 98 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:53:26,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-16 06:53:26,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 125. [2023-12-16 06:53:26,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.2661290322580645) internal successors, (157), 124 states have internal predecessors, (157), 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) [2023-12-16 06:53:26,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 157 transitions. [2023-12-16 06:53:26,832 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 157 transitions. Word has length 72 [2023-12-16 06:53:26,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:26,833 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 157 transitions. [2023-12-16 06:53:26,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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) [2023-12-16 06:53:26,833 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 157 transitions. [2023-12-16 06:53:26,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 06:53:26,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:26,838 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:26,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:27,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:27,045 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:27,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:27,045 INFO L85 PathProgramCache]: Analyzing trace with hash 219020866, now seen corresponding path program 4 times [2023-12-16 06:53:27,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:27,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602619017] [2023-12-16 06:53:27,046 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-16 06:53:27,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:27,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:27,047 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:27,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 06:53:27,119 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-16 06:53:27,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:53:27,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 06:53:27,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:27,225 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-12-16 06:53:27,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-12-16 06:53:27,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:27,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602619017] [2023-12-16 06:53:27,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602619017] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:27,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:27,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-16 06:53:27,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569984056] [2023-12-16 06:53:27,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:27,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 06:53:27,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:27,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 06:53:27,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-12-16 06:53:27,583 INFO L87 Difference]: Start difference. First operand 125 states and 157 transitions. Second operand has 24 states, 24 states have (on average 4.625) internal successors, (111), 23 states have internal predecessors, (111), 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) [2023-12-16 06:53:29,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:29,222 INFO L93 Difference]: Finished difference Result 308 states and 398 transitions. [2023-12-16 06:53:29,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 06:53:29,223 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.625) internal successors, (111), 23 states have internal predecessors, (111), 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 93 [2023-12-16 06:53:29,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:29,224 INFO L225 Difference]: With dead ends: 308 [2023-12-16 06:53:29,224 INFO L226 Difference]: Without dead ends: 265 [2023-12-16 06:53:29,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2023-12-16 06:53:29,225 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 931 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:29,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 312 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 06:53:29,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-16 06:53:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 221. [2023-12-16 06:53:29,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.3136363636363637) internal successors, (289), 220 states have internal predecessors, (289), 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) [2023-12-16 06:53:29,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 289 transitions. [2023-12-16 06:53:29,238 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 289 transitions. Word has length 93 [2023-12-16 06:53:29,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:29,238 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 289 transitions. [2023-12-16 06:53:29,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.625) internal successors, (111), 23 states have internal predecessors, (111), 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) [2023-12-16 06:53:29,239 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 289 transitions. [2023-12-16 06:53:29,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 06:53:29,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:29,240 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 13, 12, 12, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:29,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:29,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:29,445 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:29,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:29,446 INFO L85 PathProgramCache]: Analyzing trace with hash -604595134, now seen corresponding path program 5 times [2023-12-16 06:53:29,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:29,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011755431] [2023-12-16 06:53:29,446 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-16 06:53:29,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:29,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:29,447 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:29,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 06:53:29,648 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-12-16 06:53:29,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:53:29,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 06:53:29,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:29,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1399 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2023-12-16 06:53:29,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1399 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2023-12-16 06:53:30,047 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:30,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011755431] [2023-12-16 06:53:30,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011755431] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:30,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:30,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-12-16 06:53:30,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571207935] [2023-12-16 06:53:30,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:30,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-16 06:53:30,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:30,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-16 06:53:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2023-12-16 06:53:30,049 INFO L87 Difference]: Start difference. First operand 221 states and 289 transitions. Second operand has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 28 states have internal predecessors, (87), 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) [2023-12-16 06:53:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:31,713 INFO L93 Difference]: Finished difference Result 339 states and 441 transitions. [2023-12-16 06:53:31,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-16 06:53:31,714 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 28 states have internal predecessors, (87), 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 153 [2023-12-16 06:53:31,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:31,715 INFO L225 Difference]: With dead ends: 339 [2023-12-16 06:53:31,715 INFO L226 Difference]: Without dead ends: 317 [2023-12-16 06:53:31,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=586, Invalid=1054, Unknown=0, NotChecked=0, Total=1640 [2023-12-16 06:53:31,716 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 1408 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:31,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 414 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 06:53:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-12-16 06:53:31,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 263. [2023-12-16 06:53:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 1.2633587786259541) internal successors, (331), 262 states have internal predecessors, (331), 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) [2023-12-16 06:53:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 331 transitions. [2023-12-16 06:53:31,737 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 331 transitions. Word has length 153 [2023-12-16 06:53:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:31,737 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 331 transitions. [2023-12-16 06:53:31,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 28 states have internal predecessors, (87), 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) [2023-12-16 06:53:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 331 transitions. [2023-12-16 06:53:31,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-16 06:53:31,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:31,739 INFO L195 NwaCegarLoop]: trace histogram [27, 26, 26, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:31,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:31,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:31,947 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:31,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash 591931266, now seen corresponding path program 6 times [2023-12-16 06:53:31,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:31,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143426778] [2023-12-16 06:53:31,948 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-16 06:53:31,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:31,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:31,949 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:31,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 06:53:32,247 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2023-12-16 06:53:32,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:53:32,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 06:53:32,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:32,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2023-12-16 06:53:32,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2023-12-16 06:53:33,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:33,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143426778] [2023-12-16 06:53:33,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143426778] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:33,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:33,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 56 [2023-12-16 06:53:33,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965875929] [2023-12-16 06:53:33,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:33,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-12-16 06:53:33,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:33,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-12-16 06:53:33,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=838, Invalid=2242, Unknown=0, NotChecked=0, Total=3080 [2023-12-16 06:53:33,488 INFO L87 Difference]: Start difference. First operand 263 states and 331 transitions. Second operand has 56 states, 56 states have (on average 3.0535714285714284) internal successors, (171), 56 states have internal predecessors, (171), 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) [2023-12-16 06:53:39,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:39,650 INFO L93 Difference]: Finished difference Result 731 states and 959 transitions. [2023-12-16 06:53:39,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-16 06:53:39,650 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 3.0535714285714284) internal successors, (171), 56 states have internal predecessors, (171), 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 195 [2023-12-16 06:53:39,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:39,652 INFO L225 Difference]: With dead ends: 731 [2023-12-16 06:53:39,652 INFO L226 Difference]: Without dead ends: 646 [2023-12-16 06:53:39,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2350, Invalid=4456, Unknown=0, NotChecked=0, Total=6806 [2023-12-16 06:53:39,656 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 6799 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 7653 mSolverCounterSat, 1197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6799 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 8850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1197 IncrementalHoareTripleChecker+Valid, 7653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:39,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6799 Valid, 1562 Invalid, 8850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1197 Valid, 7653 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-16 06:53:39,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-16 06:53:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 387. [2023-12-16 06:53:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.217616580310881) internal successors, (470), 386 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:53:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 470 transitions. [2023-12-16 06:53:39,678 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 470 transitions. Word has length 195 [2023-12-16 06:53:39,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:39,678 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 470 transitions. [2023-12-16 06:53:39,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 3.0535714285714284) internal successors, (171), 56 states have internal predecessors, (171), 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) [2023-12-16 06:53:39,678 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 470 transitions. [2023-12-16 06:53:39,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-12-16 06:53:39,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:39,681 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:39,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:39,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:39,886 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:39,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:39,887 INFO L85 PathProgramCache]: Analyzing trace with hash 8852234, now seen corresponding path program 7 times [2023-12-16 06:53:39,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:39,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7445447] [2023-12-16 06:53:39,887 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-16 06:53:39,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:39,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:39,888 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:39,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 06:53:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:53:40,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-16 06:53:40,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:40,520 INFO L134 CoverageAnalysis]: Checked inductivity of 6183 backedges. 0 proven. 1782 refuted. 0 times theorem prover too weak. 4401 trivial. 0 not checked. [2023-12-16 06:53:40,521 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:53:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6183 backedges. 0 proven. 1782 refuted. 0 times theorem prover too weak. 4401 trivial. 0 not checked. [2023-12-16 06:53:42,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:53:42,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7445447] [2023-12-16 06:53:42,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7445447] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:53:42,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:53:42,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 57 [2023-12-16 06:53:42,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306966515] [2023-12-16 06:53:42,362 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:53:42,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-16 06:53:42,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:53:42,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-16 06:53:42,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=2409, Unknown=0, NotChecked=0, Total=3306 [2023-12-16 06:53:42,365 INFO L87 Difference]: Start difference. First operand 387 states and 470 transitions. Second operand has 58 states, 58 states have (on average 4.844827586206897) internal successors, (281), 57 states have internal predecessors, (281), 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) [2023-12-16 06:53:56,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:53:56,131 INFO L93 Difference]: Finished difference Result 871 states and 1072 transitions. [2023-12-16 06:53:56,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-16 06:53:56,131 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 4.844827586206897) internal successors, (281), 57 states have internal predecessors, (281), 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 304 [2023-12-16 06:53:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:53:56,133 INFO L225 Difference]: With dead ends: 871 [2023-12-16 06:53:56,133 INFO L226 Difference]: Without dead ends: 702 [2023-12-16 06:53:56,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=2463, Invalid=4677, Unknown=0, NotChecked=0, Total=7140 [2023-12-16 06:53:56,135 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 5347 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 8226 mSolverCounterSat, 908 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5347 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 9134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 908 IncrementalHoareTripleChecker+Valid, 8226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-16 06:53:56,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5347 Valid, 1740 Invalid, 9134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [908 Valid, 8226 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-16 06:53:56,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-12-16 06:53:56,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 619. [2023-12-16 06:53:56,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 618 states have (on average 1.2766990291262137) internal successors, (789), 618 states have internal predecessors, (789), 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) [2023-12-16 06:53:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 789 transitions. [2023-12-16 06:53:56,156 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 789 transitions. Word has length 304 [2023-12-16 06:53:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:53:56,157 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 789 transitions. [2023-12-16 06:53:56,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 4.844827586206897) internal successors, (281), 57 states have internal predecessors, (281), 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) [2023-12-16 06:53:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 789 transitions. [2023-12-16 06:53:56,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2023-12-16 06:53:56,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:53:56,161 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 56, 56, 55, 54, 54, 1, 1, 1, 1, 1, 1] [2023-12-16 06:53:56,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 06:53:56,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:56,367 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:53:56,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:53:56,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1908833534, now seen corresponding path program 8 times [2023-12-16 06:53:56,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:53:56,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619730053] [2023-12-16 06:53:56,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:53:56,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:53:56,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:53:56,369 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:53:56,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 06:53:56,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 06:53:56,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:53:56,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-16 06:53:56,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:53:58,074 INFO L134 CoverageAnalysis]: Checked inductivity of 12157 backedges. 0 proven. 7756 refuted. 0 times theorem prover too weak. 4401 trivial. 0 not checked. [2023-12-16 06:53:58,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:54:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12157 backedges. 0 proven. 7756 refuted. 0 times theorem prover too weak. 4401 trivial. 0 not checked. [2023-12-16 06:54:04,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:54:04,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619730053] [2023-12-16 06:54:04,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619730053] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:54:04,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:54:04,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 115 [2023-12-16 06:54:04,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247046907] [2023-12-16 06:54:04,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:54:04,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2023-12-16 06:54:04,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:54:04,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2023-12-16 06:54:04,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3478, Invalid=9862, Unknown=0, NotChecked=0, Total=13340 [2023-12-16 06:54:04,896 INFO L87 Difference]: Start difference. First operand 619 states and 789 transitions. Second operand has 116 states, 116 states have (on average 4.922413793103448) internal successors, (571), 115 states have internal predecessors, (571), 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... [2023-12-16 06:54:35,522 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:54:35,522 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 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:54:35,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-12-16 06:54:35,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 908 GetRequests, 782 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 25.5s TimeCoverageRelationStatistics Valid=4754, Invalid=11248, Unknown=0, NotChecked=0, Total=16002 [2023-12-16 06:54:35,556 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 9972 mSDsluCounter, 6404 mSDsCounter, 0 mSdLazyCounter, 22872 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9972 SdHoareTripleChecker+Valid, 6518 SdHoareTripleChecker+Invalid, 22873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:54:35,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9972 Valid, 6518 Invalid, 22873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 22872 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2023-12-16 06:54:35,562 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:54:35,568 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 (12)] Ended with exit code 0 [2023-12-16 06:54:35,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:54:35,762 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (619states) and FLOYD_HOARE automaton (currently 70 states, 116 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-46-1 term,while PolyPacSimplificationTermWalker was simplifying a ∧-46-1 term,while PolyPacSimplificationTermWalker was simplifying 46 xjuncts wrt. a ATOM-1 context. [2023-12-16 06:54:35,766 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1] [2023-12-16 06:54:35,767 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:54:35,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:54:35 BoogieIcfgContainer [2023-12-16 06:54:35,769 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:54:35,769 INFO L158 Benchmark]: Toolchain (without parser) took 72832.79ms. Allocated memory is still 288.4MB. Free memory was 239.1MB in the beginning and 222.7MB in the end (delta: 16.4MB). Peak memory consumption was 162.1MB. Max. memory is 8.0GB. [2023-12-16 06:54:35,769 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 197.1MB. Free memory was 143.0MB in the beginning and 142.9MB in the end (delta: 129.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:54:35,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.21ms. Allocated memory is still 288.4MB. Free memory was 239.1MB in the beginning and 227.4MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 06:54:35,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.45ms. Allocated memory is still 288.4MB. Free memory was 227.4MB in the beginning and 226.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 06:54:35,770 INFO L158 Benchmark]: Boogie Preprocessor took 28.17ms. Allocated memory is still 288.4MB. Free memory was 226.0MB in the beginning and 223.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 06:54:35,770 INFO L158 Benchmark]: RCFGBuilder took 286.96ms. Allocated memory is still 288.4MB. Free memory was 223.9MB in the beginning and 208.7MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 06:54:35,770 INFO L158 Benchmark]: TraceAbstraction took 72257.00ms. Allocated memory is still 288.4MB. Free memory was 208.1MB in the beginning and 222.7MB in the end (delta: -14.6MB). Peak memory consumption was 131.7MB. Max. memory is 8.0GB. [2023-12-16 06:54:35,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 197.1MB. Free memory was 143.0MB in the beginning and 142.9MB in the end (delta: 129.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 221.21ms. Allocated memory is still 288.4MB. Free memory was 239.1MB in the beginning and 227.4MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.45ms. Allocated memory is still 288.4MB. Free memory was 227.4MB in the beginning and 226.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.17ms. Allocated memory is still 288.4MB. Free memory was 226.0MB in the beginning and 223.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 286.96ms. Allocated memory is still 288.4MB. Free memory was 223.9MB in the beginning and 208.7MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 72257.00ms. Allocated memory is still 288.4MB. Free memory was 208.1MB in the beginning and 222.7MB in the end (delta: -14.6MB). Peak memory consumption was 131.7MB. 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: 13]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 13). Cancelled while NwaCegarLoop was constructing difference of abstraction (619states) and FLOYD_HOARE automaton (currently 70 states, 116 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-46-1 term,while PolyPacSimplificationTermWalker was simplifying a ∧-46-1 term,while PolyPacSimplificationTermWalker was simplifying 46 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.2s, OverallIterations: 11, TraceHistogramMax: 56, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 55.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25159 SdHoareTripleChecker+Valid, 22.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25159 mSDsluCounter, 10822 SdHoareTripleChecker+Invalid, 18.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10438 mSDsCounter, 2656 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42854 IncrementalHoareTripleChecker+Invalid, 45510 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2656 mSolverCounterUnsat, 384 mSDtfsCounter, 42854 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2782 GetRequests, 2380 SyntacticMatches, 0 SemanticMatches, 401 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 41.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=619occurred in iteration=10, InterpolantAutomatonStates: 210, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 491 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 13.1s InterpolantComputationTime, 1343 NumberOfCodeBlocks, 1318 NumberOfCodeBlocksAsserted, 66 NumberOfCheckSat, 2638 ConstructedInterpolants, 0 QuantifiedInterpolants, 6287 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2164 ConjunctsInSsa, 164 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 23247/45441 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