/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/eca-rers2012/Problem15_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 13:12:57,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 13:12:57,939 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 13:12:57,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 13:12:57,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 13:12:57,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 13:12:57,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 13:12:57,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 13:12:57,978 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 13:12:57,979 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 13:12:57,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 13:12:57,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 13:12:57,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 13:12:57,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 13:12:57,988 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 13:12:57,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 13:12:57,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 13:12:57,990 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 13:12:57,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 13:12:57,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 13:12:57,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 13:12:57,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 13:12:57,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 13:12:57,991 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 13:12:57,991 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 13:12:57,992 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 13:12:57,992 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 13:12:57,992 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 13:12:57,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 13:12:57,992 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 13:12:57,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 13:12:57,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 13:12:57,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 13:12:57,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 13:12:57,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 13:12:57,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 13:12:57,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 13:12:57,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 13:12:57,995 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 13:12:57,995 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 13:12:57,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 13:12:57,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 13:12:57,996 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 13:12:57,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 13:12:57,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 13:12:57,996 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 13:12:57,996 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 13:12:58,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 13:12:58,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 13:12:58,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 13:12:58,224 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 13:12:58,224 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 13:12:58,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label22.c [2023-12-22 13:12:59,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 13:12:59,797 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 13:12:59,798 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label22.c [2023-12-22 13:12:59,828 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/071d9f10a/655cd15caea847ff97c3d71b1b1fb9f6/FLAGda4bd1fce [2023-12-22 13:12:59,845 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/071d9f10a/655cd15caea847ff97c3d71b1b1fb9f6 [2023-12-22 13:12:59,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 13:12:59,850 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 13:12:59,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 13:12:59,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 13:12:59,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 13:12:59,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:12:59" (1/1) ... [2023-12-22 13:12:59,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e4820f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:12:59, skipping insertion in model container [2023-12-22 13:12:59,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:12:59" (1/1) ... [2023-12-22 13:12:59,924 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 13:13:00,146 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label22.c[2348,2361] [2023-12-22 13:13:00,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 13:13:00,616 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 13:13:00,637 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label22.c[2348,2361] [2023-12-22 13:13:00,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 13:13:00,957 INFO L206 MainTranslator]: Completed translation [2023-12-22 13:13:00,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00 WrapperNode [2023-12-22 13:13:00,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 13:13:00,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 13:13:00,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 13:13:00,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 13:13:00,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,099 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1757 [2023-12-22 13:13:01,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 13:13:01,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 13:13:01,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 13:13:01,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 13:13:01,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,125 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,170 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 13:13:01,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,247 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,277 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 13:13:01,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 13:13:01,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 13:13:01,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 13:13:01,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (1/1) ... [2023-12-22 13:13:01,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 13:13:01,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 13:13:01,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 13:13:01,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 13:13:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 13:13:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 13:13:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 13:13:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 13:13:01,432 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 13:13:01,434 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 13:13:19,500 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 13:13:19,541 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 13:13:19,542 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 13:13:19,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:13:19 BoogieIcfgContainer [2023-12-22 13:13:19,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 13:13:19,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 13:13:19,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 13:13:19,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 13:13:19,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:12:59" (1/3) ... [2023-12-22 13:13:19,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9ea5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:13:19, skipping insertion in model container [2023-12-22 13:13:19,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:00" (2/3) ... [2023-12-22 13:13:19,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9ea5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:13:19, skipping insertion in model container [2023-12-22 13:13:19,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:13:19" (3/3) ... [2023-12-22 13:13:19,550 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label22.c [2023-12-22 13:13:19,566 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 13:13:19,566 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 13:13:19,626 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 13:13:19,632 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;@62ba91a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 13:13:19,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 13:13:19,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 360 states have (on average 1.9111111111111112) internal successors, (688), 361 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:13:19,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-22 13:13:19,647 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:13:19,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:13:19,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:13:19,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:13:19,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1662195112, now seen corresponding path program 1 times [2023-12-22 13:13:19,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:13:19,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280339297] [2023-12-22 13:13:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:13:19,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:13:19,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:13:19,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:13:19,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 13:13:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:13:19,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 13:13:19,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:13:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:13:19,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:13:19,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:13:19,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280339297] [2023-12-22 13:13:19,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280339297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:13:19,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:13:19,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 13:13:19,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568800505] [2023-12-22 13:13:19,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:13:19,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 13:13:19,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:13:19,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 13:13:19,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 13:13:19,823 INFO L87 Difference]: Start difference. First operand has 362 states, 360 states have (on average 1.9111111111111112) internal successors, (688), 361 states have internal predecessors, (688), 0 states have call successors, (0), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:13:19,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:13:19,893 INFO L93 Difference]: Finished difference Result 723 states and 1375 transitions. [2023-12-22 13:13:19,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 13:13:19,896 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-12-22 13:13:19,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:13:19,906 INFO L225 Difference]: With dead ends: 723 [2023-12-22 13:13:19,906 INFO L226 Difference]: Without dead ends: 360 [2023-12-22 13:13:19,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 13:13:19,914 INFO L413 NwaCegarLoop]: 623 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, 623 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 [2023-12-22 13:13:19,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 623 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 13:13:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-12-22 13:13:19,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2023-12-22 13:13:19,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.7353760445682451) internal successors, (623), 359 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:13:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 623 transitions. [2023-12-22 13:13:19,973 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 623 transitions. Word has length 17 [2023-12-22 13:13:19,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:13:19,974 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 623 transitions. [2023-12-22 13:13:19,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:13:19,974 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 623 transitions. [2023-12-22 13:13:19,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-22 13:13:19,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:13:19,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:13:19,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 13:13:20,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:13:20,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:13:20,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:13:20,177 INFO L85 PathProgramCache]: Analyzing trace with hash -2100552192, now seen corresponding path program 1 times [2023-12-22 13:13:20,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:13:20,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840664010] [2023-12-22 13:13:20,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:13:20,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:13:20,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:13:20,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:13:20,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 13:13:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:13:20,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 13:13:20,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:13:20,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:13:20,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:13:20,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:13:20,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840664010] [2023-12-22 13:13:20,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840664010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:13:20,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:13:20,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 13:13:20,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664936548] [2023-12-22 13:13:20,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:13:20,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:13:20,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:13:20,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:13:20,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:13:20,315 INFO L87 Difference]: Start difference. First operand 360 states and 623 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:13:38,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:13:38,318 INFO L93 Difference]: Finished difference Result 1034 states and 1810 transitions. [2023-12-22 13:13:38,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:13:38,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-12-22 13:13:38,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:13:38,323 INFO L225 Difference]: With dead ends: 1034 [2023-12-22 13:13:38,323 INFO L226 Difference]: Without dead ends: 675 [2023-12-22 13:13:38,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:13:38,326 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 303 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2023-12-22 13:13:38,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 224 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2023-12-22 13:13:38,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2023-12-22 13:13:38,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 667. [2023-12-22 13:13:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 666 states have (on average 1.578078078078078) internal successors, (1051), 666 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:13:38,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1051 transitions. [2023-12-22 13:13:38,354 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1051 transitions. Word has length 17 [2023-12-22 13:13:38,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:13:38,354 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1051 transitions. [2023-12-22 13:13:38,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:13:38,355 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1051 transitions. [2023-12-22 13:13:38,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-22 13:13:38,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:13:38,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:13:38,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 13:13:38,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:13:38,560 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:13:38,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:13:38,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1739783764, now seen corresponding path program 1 times [2023-12-22 13:13:38,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:13:38,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453180032] [2023-12-22 13:13:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:13:38,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:13:38,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:13:38,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:13:38,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 13:13:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:13:38,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 13:13:38,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:13:38,911 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:13:38,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:13:38,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:13:38,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453180032] [2023-12-22 13:13:38,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453180032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:13:38,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:13:38,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 13:13:38,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138704308] [2023-12-22 13:13:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:13:38,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:13:38,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:13:38,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:13:38,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:13:38,914 INFO L87 Difference]: Start difference. First operand 667 states and 1051 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:14:02,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:14:02,183 INFO L93 Difference]: Finished difference Result 1629 states and 2634 transitions. [2023-12-22 13:14:02,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:14:02,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-22 13:14:02,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:14:02,207 INFO L225 Difference]: With dead ends: 1629 [2023-12-22 13:14:02,207 INFO L226 Difference]: Without dead ends: 963 [2023-12-22 13:14:02,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:14:02,210 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 248 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2023-12-22 13:14:02,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 345 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 23.2s Time] [2023-12-22 13:14:02,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-12-22 13:14:02,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 961. [2023-12-22 13:14:02,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 960 states have (on average 1.3635416666666667) internal successors, (1309), 960 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:14:02,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1309 transitions. [2023-12-22 13:14:02,237 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1309 transitions. Word has length 83 [2023-12-22 13:14:02,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:14:02,238 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1309 transitions. [2023-12-22 13:14:02,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:14:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1309 transitions. [2023-12-22 13:14:02,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 13:14:02,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:14:02,243 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:14:02,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 13:14:02,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:14:02,453 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:14:02,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:14:02,454 INFO L85 PathProgramCache]: Analyzing trace with hash -987339958, now seen corresponding path program 1 times [2023-12-22 13:14:02,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:14:02,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206763008] [2023-12-22 13:14:02,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:14:02,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:14:02,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:14:02,457 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:14:02,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 13:14:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:14:02,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 13:14:02,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:14:02,740 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:14:02,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:14:02,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:14:02,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206763008] [2023-12-22 13:14:02,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206763008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:14:02,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:14:02,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 13:14:02,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892100495] [2023-12-22 13:14:02,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:14:02,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:14:02,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:14:02,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:14:02,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:14:02,743 INFO L87 Difference]: Start difference. First operand 961 states and 1309 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 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) [2023-12-22 13:14:27,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:14:27,799 INFO L93 Difference]: Finished difference Result 1927 states and 2830 transitions. [2023-12-22 13:14:27,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:14:27,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 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 87 [2023-12-22 13:14:27,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:14:27,805 INFO L225 Difference]: With dead ends: 1927 [2023-12-22 13:14:27,805 INFO L226 Difference]: Without dead ends: 1266 [2023-12-22 13:14:27,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:14:27,807 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 258 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2023-12-22 13:14:27,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 314 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 25.0s Time] [2023-12-22 13:14:27,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2023-12-22 13:14:27,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1264. [2023-12-22 13:14:27,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1263 states have (on average 1.3056215360253365) internal successors, (1649), 1263 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:14:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1649 transitions. [2023-12-22 13:14:27,830 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1649 transitions. Word has length 87 [2023-12-22 13:14:27,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:14:27,831 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 1649 transitions. [2023-12-22 13:14:27,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 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) [2023-12-22 13:14:27,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1649 transitions. [2023-12-22 13:14:27,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-22 13:14:27,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:14:27,832 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:14:27,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 13:14:28,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:14:28,036 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:14:28,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:14:28,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1153156032, now seen corresponding path program 1 times [2023-12-22 13:14:28,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:14:28,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322514928] [2023-12-22 13:14:28,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:14:28,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:14:28,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:14:28,040 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:14:28,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 13:14:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:14:28,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 13:14:28,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:14:29,585 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:14:29,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 13:14:31,001 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:14:31,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:14:31,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322514928] [2023-12-22 13:14:31,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322514928] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 13:14:31,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 13:14:31,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 13:14:31,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6873187] [2023-12-22 13:14:31,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 13:14:31,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 13:14:31,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:14:31,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 13:14:31,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 13:14:31,004 INFO L87 Difference]: Start difference. First operand 1264 states and 1649 transitions. Second operand has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 5 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:16:29,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:18:20,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:18:20,845 INFO L93 Difference]: Finished difference Result 4988 states and 6824 transitions. [2023-12-22 13:18:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 13:18:20,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 5 states have internal predecessors, (215), 0 states have call successors, (0), 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 108 [2023-12-22 13:18:20,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:18:20,883 INFO L225 Difference]: With dead ends: 4988 [2023-12-22 13:18:20,883 INFO L226 Difference]: Without dead ends: 4024 [2023-12-22 13:18:20,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 13:18:20,887 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 1909 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 3605 mSolverCounterSat, 1096 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 219.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1909 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 4701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1096 IncrementalHoareTripleChecker+Valid, 3605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.5s IncrementalHoareTripleChecker+Time [2023-12-22 13:18:20,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1909 Valid, 184 Invalid, 4701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1096 Valid, 3605 Invalid, 0 Unknown, 0 Unchecked, 229.5s Time] [2023-12-22 13:18:20,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2023-12-22 13:18:20,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3387. [2023-12-22 13:18:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3387 states, 3386 states have (on average 1.3148257531010041) internal successors, (4452), 3386 states have internal predecessors, (4452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:18:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3387 states to 3387 states and 4452 transitions. [2023-12-22 13:18:20,950 INFO L78 Accepts]: Start accepts. Automaton has 3387 states and 4452 transitions. Word has length 108 [2023-12-22 13:18:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:18:20,953 INFO L495 AbstractCegarLoop]: Abstraction has 3387 states and 4452 transitions. [2023-12-22 13:18:20,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 5 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:18:20,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3387 states and 4452 transitions. [2023-12-22 13:18:20,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-22 13:18:20,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:18:20,963 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:18:20,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 13:18:21,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:18:21,164 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:18:21,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:18:21,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1128953103, now seen corresponding path program 1 times [2023-12-22 13:18:21,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:18:21,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347188114] [2023-12-22 13:18:21,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:18:21,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:18:21,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:18:21,166 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:18:21,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 13:18:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:18:21,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 13:18:21,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:18:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 31 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:18:26,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 13:18:31,041 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 31 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:18:31,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:18:31,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347188114] [2023-12-22 13:18:31,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347188114] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 13:18:31,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 13:18:31,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 13:18:31,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28071908] [2023-12-22 13:18:31,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 13:18:31,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 13:18:31,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:18:31,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 13:18:31,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 13:18:31,044 INFO L87 Difference]: Start difference. First operand 3387 states and 4452 transitions. Second operand has 7 states, 7 states have (on average 42.857142857142854) internal successors, (300), 6 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:20:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:20:25,341 INFO L93 Difference]: Finished difference Result 9306 states and 12581 transitions. [2023-12-22 13:20:25,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 13:20:25,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.857142857142854) internal successors, (300), 6 states have internal predecessors, (300), 0 states have call successors, (0), 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 176 [2023-12-22 13:20:25,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:20:25,355 INFO L225 Difference]: With dead ends: 9306 [2023-12-22 13:20:25,355 INFO L226 Difference]: Without dead ends: 4889 [2023-12-22 13:20:25,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-22 13:20:25,361 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 2949 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 4428 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2949 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 5228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 4428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.5s IncrementalHoareTripleChecker+Time [2023-12-22 13:20:25,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2949 Valid, 283 Invalid, 5228 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [800 Valid, 4428 Invalid, 0 Unknown, 0 Unchecked, 113.5s Time] [2023-12-22 13:20:25,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4889 states. [2023-12-22 13:20:25,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4889 to 3683. [2023-12-22 13:20:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3683 states, 3682 states have (on average 1.1876697447039652) internal successors, (4373), 3682 states have internal predecessors, (4373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:20:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3683 states to 3683 states and 4373 transitions. [2023-12-22 13:20:25,429 INFO L78 Accepts]: Start accepts. Automaton has 3683 states and 4373 transitions. Word has length 176 [2023-12-22 13:20:25,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:20:25,429 INFO L495 AbstractCegarLoop]: Abstraction has 3683 states and 4373 transitions. [2023-12-22 13:20:25,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.857142857142854) internal successors, (300), 6 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:20:25,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3683 states and 4373 transitions. [2023-12-22 13:20:25,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-22 13:20:25,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:20:25,435 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:20:25,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 13:20:25,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:20:25,643 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:20:25,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:20:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash -766321392, now seen corresponding path program 1 times [2023-12-22 13:20:25,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:20:25,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001399141] [2023-12-22 13:20:25,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:20:25,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:20:25,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:20:25,649 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:20:25,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 13:20:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:20:25,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 13:20:25,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:20:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-22 13:20:30,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:20:30,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:20:30,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001399141] [2023-12-22 13:20:30,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001399141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:20:30,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:20:30,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 13:20:30,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954198731] [2023-12-22 13:20:30,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:20:30,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:20:30,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:20:30,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:20:30,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:20:30,989 INFO L87 Difference]: Start difference. First operand 3683 states and 4373 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:20:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:20:50,342 INFO L93 Difference]: Finished difference Result 7066 states and 8442 transitions. [2023-12-22 13:20:50,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:20:50,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 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 373 [2023-12-22 13:20:50,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:20:50,359 INFO L225 Difference]: With dead ends: 7066 [2023-12-22 13:20:50,359 INFO L226 Difference]: Without dead ends: 3683 [2023-12-22 13:20:50,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:20:50,364 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2023-12-22 13:20:50,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 312 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2023-12-22 13:20:50,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3683 states. [2023-12-22 13:20:50,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3683 to 3683. [2023-12-22 13:20:50,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3683 states, 3682 states have (on average 1.1871265616512765) internal successors, (4371), 3682 states have internal predecessors, (4371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:20:50,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3683 states to 3683 states and 4371 transitions. [2023-12-22 13:20:50,420 INFO L78 Accepts]: Start accepts. Automaton has 3683 states and 4371 transitions. Word has length 373 [2023-12-22 13:20:50,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:20:50,421 INFO L495 AbstractCegarLoop]: Abstraction has 3683 states and 4371 transitions. [2023-12-22 13:20:50,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:20:50,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3683 states and 4371 transitions. [2023-12-22 13:20:50,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-12-22 13:20:50,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:20:50,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:20:50,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 13:20:50,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:20:50,639 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:20:50,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:20:50,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1129254271, now seen corresponding path program 1 times [2023-12-22 13:20:50,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:20:50,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945643808] [2023-12-22 13:20:50,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:20:50,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:20:50,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:20:50,642 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:20:50,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 13:20:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:20:50,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 13:20:50,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:20:52,269 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:20:52,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:20:52,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:20:52,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945643808] [2023-12-22 13:20:52,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945643808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:20:52,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:20:52,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 13:20:52,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491661368] [2023-12-22 13:20:52,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:20:52,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:20:52,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:20:52,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:20:52,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:20:52,276 INFO L87 Difference]: Start difference. First operand 3683 states and 4371 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:21:17,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:21:17,141 INFO L93 Difference]: Finished difference Result 8569 states and 10467 transitions. [2023-12-22 13:21:17,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:21:17,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 418 [2023-12-22 13:21:17,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:21:17,175 INFO L225 Difference]: With dead ends: 8569 [2023-12-22 13:21:17,175 INFO L226 Difference]: Without dead ends: 5186 [2023-12-22 13:21:17,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:21:17,180 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 197 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2023-12-22 13:21:17,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 24.8s Time] [2023-12-22 13:21:17,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2023-12-22 13:21:17,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5178. [2023-12-22 13:21:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5178 states, 5177 states have (on average 1.1639945914622367) internal successors, (6026), 5177 states have internal predecessors, (6026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:21:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5178 states to 5178 states and 6026 transitions. [2023-12-22 13:21:17,250 INFO L78 Accepts]: Start accepts. Automaton has 5178 states and 6026 transitions. Word has length 418 [2023-12-22 13:21:17,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:21:17,251 INFO L495 AbstractCegarLoop]: Abstraction has 5178 states and 6026 transitions. [2023-12-22 13:21:17,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:21:17,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5178 states and 6026 transitions. [2023-12-22 13:21:17,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-22 13:21:17,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:21:17,260 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:21:17,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-22 13:21:17,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:21:17,466 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:21:17,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:21:17,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1804033326, now seen corresponding path program 1 times [2023-12-22 13:21:17,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:21:17,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451523062] [2023-12-22 13:21:17,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:21:17,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:21:17,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:21:17,469 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:21:17,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 13:21:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:21:17,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 13:21:17,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:21:23,644 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 247 proven. 106 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-22 13:21:23,645 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 13:21:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 247 proven. 106 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-22 13:21:43,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:21:43,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451523062] [2023-12-22 13:21:43,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451523062] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 13:21:43,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 13:21:43,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 13:21:43,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599926134] [2023-12-22 13:21:43,651 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 13:21:43,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 13:21:43,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:21:43,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 13:21:43,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 13:21:43,654 INFO L87 Difference]: Start difference. First operand 5178 states and 6026 transitions. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:22:01,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:22:03,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:22:06,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:22:14,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:22:23,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:22:24,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:22:25,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:22:45,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:22:59,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:23:05,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:23:13,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:23:22,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:23:25,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:23:27,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:23:34,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:23:35,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:23:47,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:23:52,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:24:11,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:24:14,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:24:22,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:24:34,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:24:46,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:24:47,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:24:55,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:25:17,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:25:21,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:25:29,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:25:33,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:25:38,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:25:44,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:25:46,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:25:51,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:26:00,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:26:01,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:26:01,928 INFO L93 Difference]: Finished difference Result 17280 states and 20662 transitions. [2023-12-22 13:26:01,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 13:26:01,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 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 504 [2023-12-22 13:26:01,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:26:01,969 INFO L225 Difference]: With dead ends: 17280 [2023-12-22 13:26:01,970 INFO L226 Difference]: Without dead ends: 12402 [2023-12-22 13:26:01,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 1002 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 13:26:01,975 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 821 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 245.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 3412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 257.7s IncrementalHoareTripleChecker+Time [2023-12-22 13:26:01,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 160 Invalid, 3412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 257.7s Time] [2023-12-22 13:26:01,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12402 states. [2023-12-22 13:26:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12402 to 11170. [2023-12-22 13:26:02,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11170 states, 11169 states have (on average 1.2072701226609366) internal successors, (13484), 11169 states have internal predecessors, (13484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:26:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11170 states to 11170 states and 13484 transitions. [2023-12-22 13:26:02,127 INFO L78 Accepts]: Start accepts. Automaton has 11170 states and 13484 transitions. Word has length 504 [2023-12-22 13:26:02,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:26:02,127 INFO L495 AbstractCegarLoop]: Abstraction has 11170 states and 13484 transitions. [2023-12-22 13:26:02,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 5 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:26:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 11170 states and 13484 transitions. [2023-12-22 13:26:02,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2023-12-22 13:26:02,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:26:02,134 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:26:02,142 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 (10)] Ended with exit code 0 [2023-12-22 13:26:02,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:26:02,337 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:26:02,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:26:02,338 INFO L85 PathProgramCache]: Analyzing trace with hash -439527764, now seen corresponding path program 1 times [2023-12-22 13:26:02,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:26:02,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140626522] [2023-12-22 13:26:02,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:26:02,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:26:02,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:26:02,342 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:26:02,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 13:26:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:26:02,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 13:26:02,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:26:03,967 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-22 13:26:03,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 13:26:03,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:26:03,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140626522] [2023-12-22 13:26:03,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140626522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 13:26:03,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 13:26:03,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 13:26:03,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026732432] [2023-12-22 13:26:03,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:26:03,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:26:03,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:26:03,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:26:03,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:26:03,969 INFO L87 Difference]: Start difference. First operand 11170 states and 13484 transitions. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:26:26,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:26:26,236 INFO L93 Difference]: Finished difference Result 24733 states and 30396 transitions. [2023-12-22 13:26:26,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:26:26,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 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 516 [2023-12-22 13:26:26,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:26:26,280 INFO L225 Difference]: With dead ends: 24733 [2023-12-22 13:26:26,280 INFO L226 Difference]: Without dead ends: 13863 [2023-12-22 13:26:26,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 13:26:26,293 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 216 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2023-12-22 13:26:26,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 571 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 22.1s Time] [2023-12-22 13:26:26,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2023-12-22 13:26:26,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13858. [2023-12-22 13:26:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13858 states, 13857 states have (on average 1.1619398138125134) internal successors, (16101), 13857 states have internal predecessors, (16101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:26:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13858 states to 13858 states and 16101 transitions. [2023-12-22 13:26:26,477 INFO L78 Accepts]: Start accepts. Automaton has 13858 states and 16101 transitions. Word has length 516 [2023-12-22 13:26:26,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:26:26,477 INFO L495 AbstractCegarLoop]: Abstraction has 13858 states and 16101 transitions. [2023-12-22 13:26:26,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:26:26,478 INFO L276 IsEmpty]: Start isEmpty. Operand 13858 states and 16101 transitions. [2023-12-22 13:26:26,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2023-12-22 13:26:26,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:26:26,483 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:26:26,493 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 [2023-12-22 13:26:26,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:26:26,692 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:26:26,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:26:26,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1725040893, now seen corresponding path program 1 times [2023-12-22 13:26:26,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:26:26,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864419851] [2023-12-22 13:26:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:26:26,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:26:26,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:26:26,697 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:26:26,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 13:26:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:26:26,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 13:26:26,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:26:32,940 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 47 proven. 226 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-22 13:26:32,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 13:26:34,674 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-22 13:26:34,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 13:26:34,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864419851] [2023-12-22 13:26:34,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864419851] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 13:26:34,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 13:26:34,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 13:26:34,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478232328] [2023-12-22 13:26:34,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 13:26:34,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 13:26:34,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 13:26:34,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 13:26:34,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 13:26:34,676 INFO L87 Difference]: Start difference. First operand 13858 states and 16101 transitions. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:26:51,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:26:59,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 13:27:03,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 13:27:03,885 INFO L93 Difference]: Finished difference Result 33694 states and 39504 transitions. [2023-12-22 13:27:03,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 13:27:03,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 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 528 [2023-12-22 13:27:03,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 13:27:03,928 INFO L225 Difference]: With dead ends: 33694 [2023-12-22 13:27:03,928 INFO L226 Difference]: Without dead ends: 20136 [2023-12-22 13:27:03,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1054 GetRequests, 1051 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 13:27:03,942 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 278 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2023-12-22 13:27:03,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 462 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 29.0s Time] [2023-12-22 13:27:03,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20136 states. [2023-12-22 13:27:04,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20136 to 12354. [2023-12-22 13:27:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12354 states, 12353 states have (on average 1.1538087913867077) internal successors, (14253), 12353 states have internal predecessors, (14253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:27:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 14253 transitions. [2023-12-22 13:27:04,124 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 14253 transitions. Word has length 528 [2023-12-22 13:27:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 13:27:04,124 INFO L495 AbstractCegarLoop]: Abstraction has 12354 states and 14253 transitions. [2023-12-22 13:27:04,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 13:27:04,125 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 14253 transitions. [2023-12-22 13:27:04,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2023-12-22 13:27:04,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 13:27:04,132 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:27:04,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 13:27:04,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:27:04,343 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 13:27:04,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 13:27:04,344 INFO L85 PathProgramCache]: Analyzing trace with hash 703716076, now seen corresponding path program 1 times [2023-12-22 13:27:04,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 13:27:04,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703038784] [2023-12-22 13:27:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 13:27:04,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:27:04,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 13:27:04,347 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 13:27:04,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 13:27:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 13:27:04,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-22 13:27:04,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 13:27:23,687 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 13:27:23,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-22 13:27:25,787 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 (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 13:27:25,813 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 13:27:25,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 13:27:25,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 13:27:26,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 13:27:26,163 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 552 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. [2023-12-22 13:27:26,167 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 13:27:26,169 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 13:27:26,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:27:26 BoogieIcfgContainer [2023-12-22 13:27:26,171 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 13:27:26,172 INFO L158 Benchmark]: Toolchain (without parser) took 866321.86ms. Allocated memory was 268.4MB in the beginning and 352.3MB in the end (delta: 83.9MB). Free memory was 216.1MB in the beginning and 208.3MB in the end (delta: 7.8MB). Peak memory consumption was 92.9MB. Max. memory is 8.0GB. [2023-12-22 13:27:26,172 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 194.0MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 13:27:26,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1105.95ms. Allocated memory is still 268.4MB. Free memory was 216.1MB in the beginning and 219.0MB in the end (delta: -2.9MB). Peak memory consumption was 101.7MB. Max. memory is 8.0GB. [2023-12-22 13:27:26,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 140.40ms. Allocated memory is still 268.4MB. Free memory was 219.0MB in the beginning and 203.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-22 13:27:26,173 INFO L158 Benchmark]: Boogie Preprocessor took 192.10ms. Allocated memory is still 268.4MB. Free memory was 203.8MB in the beginning and 186.5MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-22 13:27:26,173 INFO L158 Benchmark]: RCFGBuilder took 18248.52ms. Allocated memory is still 268.4MB. Free memory was 186.5MB in the beginning and 194.8MB in the end (delta: -8.3MB). Peak memory consumption was 109.1MB. Max. memory is 8.0GB. [2023-12-22 13:27:26,173 INFO L158 Benchmark]: TraceAbstraction took 846627.01ms. Allocated memory was 268.4MB in the beginning and 352.3MB in the end (delta: 83.9MB). Free memory was 193.8MB in the beginning and 208.3MB in the end (delta: -14.5MB). Peak memory consumption was 69.1MB. Max. memory is 8.0GB. [2023-12-22 13:27:26,174 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 194.0MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1105.95ms. Allocated memory is still 268.4MB. Free memory was 216.1MB in the beginning and 219.0MB in the end (delta: -2.9MB). Peak memory consumption was 101.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 140.40ms. Allocated memory is still 268.4MB. Free memory was 219.0MB in the beginning and 203.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 192.10ms. Allocated memory is still 268.4MB. Free memory was 203.8MB in the beginning and 186.5MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * RCFGBuilder took 18248.52ms. Allocated memory is still 268.4MB. Free memory was 186.5MB in the beginning and 194.8MB in the end (delta: -8.3MB). Peak memory consumption was 109.1MB. Max. memory is 8.0GB. * TraceAbstraction took 846627.01ms. Allocated memory was 268.4MB in the beginning and 352.3MB in the end (delta: 83.9MB). Free memory was 193.8MB in the beginning and 208.3MB in the end (delta: -14.5MB). Peak memory consumption was 69.1MB. 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: 71]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 71). Cancelled while NwaCegarLoop was analyzing trace of length 552 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 362 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 846.6s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 764.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7284 SdHoareTripleChecker+Valid, 761.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7284 mSDsluCounter, 4087 SdHoareTripleChecker+Invalid, 703.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 660 mSDsCounter, 3689 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16945 IncrementalHoareTripleChecker+Invalid, 20634 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3689 mSolverCounterUnsat, 3427 mSDtfsCounter, 16945 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4135 GetRequests, 4106 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13858occurred in iteration=10, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 10882 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 55.1s InterpolantComputationTime, 2827 NumberOfCodeBlocks, 2827 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4128 ConstructedInterpolants, 0 QuantifiedInterpolants, 19807 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3318 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 1938/2540 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