/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/Problem01_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:22:03,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:22:03,263 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 08:22:03,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:22:03,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:22:03,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:22:03,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:22:03,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:22:03,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:22:03,299 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:22:03,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:22:03,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:22:03,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:22:03,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:22:03,301 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:22:03,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:22:03,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:22:03,302 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:22:03,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:22:03,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:22:03,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:22:03,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:22:03,305 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:22:03,305 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:22:03,305 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:22:03,305 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:22:03,306 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:22:03,306 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:22:03,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:22:03,306 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:22:03,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:22:03,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:22:03,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:22:03,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:22:03,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:22:03,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:22:03,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:22:03,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:22:03,309 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:22:03,309 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:22:03,309 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:22:03,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:22:03,310 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:22:03,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:22:03,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:22:03,311 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:22:03,311 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:22:03,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:22:03,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:22:03,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:22:03,556 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:22:03,556 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:22:03,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label18.c [2023-12-16 08:22:04,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:22:04,963 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:22:04,964 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label18.c [2023-12-16 08:22:04,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4225834/3ae8d0fac78649978a55c3a260ac43ef/FLAG2adcaec89 [2023-12-16 08:22:04,996 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4225834/3ae8d0fac78649978a55c3a260ac43ef [2023-12-16 08:22:04,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:22:04,999 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:22:05,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:22:05,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:22:05,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:22:05,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:22:04" (1/1) ... [2023-12-16 08:22:05,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a8abe11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05, skipping insertion in model container [2023-12-16 08:22:05,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:22:04" (1/1) ... [2023-12-16 08:22:05,055 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:22:05,335 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/Problem01_label18.c[17985,17998] [2023-12-16 08:22:05,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:22:05,386 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:22:05,468 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/Problem01_label18.c[17985,17998] [2023-12-16 08:22:05,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:22:05,506 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:22:05,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05 WrapperNode [2023-12-16 08:22:05,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:22:05,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:22:05,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:22:05,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:22:05,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,592 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 656 [2023-12-16 08:22:05,592 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:22:05,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:22:05,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:22:05,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:22:05,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,611 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,631 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]. [2023-12-16 08:22:05,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,655 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:22:05,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:22:05,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:22:05,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:22:05,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (1/1) ... [2023-12-16 08:22:05,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:22:05,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:22:05,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 08:22:05,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 08:22:05,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:22:05,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:22:05,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:22:05,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:22:05,880 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:22:05,882 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:22:06,935 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:22:07,001 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:22:07,001 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 08:22:07,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:22:07 BoogieIcfgContainer [2023-12-16 08:22:07,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:22:07,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:22:07,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:22:07,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:22:07,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:22:04" (1/3) ... [2023-12-16 08:22:07,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d30618b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:22:07, skipping insertion in model container [2023-12-16 08:22:07,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:22:05" (2/3) ... [2023-12-16 08:22:07,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d30618b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:22:07, skipping insertion in model container [2023-12-16 08:22:07,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:22:07" (3/3) ... [2023-12-16 08:22:07,009 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label18.c [2023-12-16 08:22:07,022 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:22:07,022 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 08:22:07,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:22:07,072 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;@1f1a32d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:22:07,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 08:22:07,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 134 states have (on average 1.9776119402985075) internal successors, (265), 135 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:07,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 08:22:07,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:07,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:22:07,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:07,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:07,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1766058908, now seen corresponding path program 1 times [2023-12-16 08:22:07,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:07,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512990903] [2023-12-16 08:22:07,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:07,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:07,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:07,109 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:07,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 08:22:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:07,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 08:22:07,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:22:07,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:07,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:07,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512990903] [2023-12-16 08:22:07,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512990903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:07,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:07,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:22:07,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354439646] [2023-12-16 08:22:07,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:07,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 08:22:07,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:07,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 08:22:07,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:22:07,335 INFO L87 Difference]: Start difference. First operand has 136 states, 134 states have (on average 1.9776119402985075) internal successors, (265), 135 states have internal predecessors, (265), 0 states have call successors, (0), 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 49.5) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:07,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:07,386 INFO L93 Difference]: Finished difference Result 271 states and 529 transitions. [2023-12-16 08:22:07,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 08:22:07,391 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-16 08:22:07,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:07,399 INFO L225 Difference]: With dead ends: 271 [2023-12-16 08:22:07,399 INFO L226 Difference]: Without dead ends: 134 [2023-12-16 08:22:07,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:22:07,405 INFO L413 NwaCegarLoop]: 200 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, 200 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:07,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 200 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:22:07,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-12-16 08:22:07,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2023-12-16 08:22:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.5037593984962405) internal successors, (200), 133 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:07,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 200 transitions. [2023-12-16 08:22:07,436 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 200 transitions. Word has length 99 [2023-12-16 08:22:07,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:07,437 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 200 transitions. [2023-12-16 08:22:07,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:07,437 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 200 transitions. [2023-12-16 08:22:07,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 08:22:07,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:07,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:22:07,444 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 [2023-12-16 08:22:07,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:07,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:07,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:07,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1811613343, now seen corresponding path program 1 times [2023-12-16 08:22:07,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:07,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368724682] [2023-12-16 08:22:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:07,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:07,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:07,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:07,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:22:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:07,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 08:22:07,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:15,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:22:15,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:15,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:15,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368724682] [2023-12-16 08:22:15,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368724682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:15,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:15,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 08:22:15,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939495765] [2023-12-16 08:22:15,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:15,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 08:22:15,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:15,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 08:22:15,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:22:15,039 INFO L87 Difference]: Start difference. First operand 134 states and 200 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:16,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:16,578 INFO L93 Difference]: Finished difference Result 587 states and 909 transitions. [2023-12-16 08:22:16,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 08:22:16,579 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-16 08:22:16,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:16,583 INFO L225 Difference]: With dead ends: 587 [2023-12-16 08:22:16,583 INFO L226 Difference]: Without dead ends: 454 [2023-12-16 08:22:16,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-16 08:22:16,585 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 509 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:16,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 82 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 08:22:16,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-12-16 08:22:16,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2023-12-16 08:22:16,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 453 states have (on average 1.3178807947019868) internal successors, (597), 453 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:16,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 597 transitions. [2023-12-16 08:22:16,612 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 597 transitions. Word has length 99 [2023-12-16 08:22:16,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:16,613 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 597 transitions. [2023-12-16 08:22:16,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:16,613 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 597 transitions. [2023-12-16 08:22:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 08:22:16,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:16,617 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:22:16,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 08:22:16,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:16,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:16,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:16,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1057878231, now seen corresponding path program 1 times [2023-12-16 08:22:16,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:16,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305876379] [2023-12-16 08:22:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:16,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:16,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:16,841 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:16,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 08:22:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:16,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 08:22:16,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:19,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:22:19,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:19,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:19,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305876379] [2023-12-16 08:22:19,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305876379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:19,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:19,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 08:22:19,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432408926] [2023-12-16 08:22:19,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:19,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 08:22:19,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:19,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 08:22:19,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:22:19,473 INFO L87 Difference]: Start difference. First operand 454 states and 597 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:20,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:20,480 INFO L93 Difference]: Finished difference Result 1047 states and 1481 transitions. [2023-12-16 08:22:20,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 08:22:20,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2023-12-16 08:22:20,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:20,484 INFO L225 Difference]: With dead ends: 1047 [2023-12-16 08:22:20,485 INFO L226 Difference]: Without dead ends: 783 [2023-12-16 08:22:20,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:22:20,487 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 157 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:20,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 67 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 08:22:20,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-12-16 08:22:20,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 781. [2023-12-16 08:22:20,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 780 states have (on average 1.291025641025641) internal successors, (1007), 780 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:20,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1007 transitions. [2023-12-16 08:22:20,542 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1007 transitions. Word has length 103 [2023-12-16 08:22:20,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:20,542 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1007 transitions. [2023-12-16 08:22:20,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:20,542 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1007 transitions. [2023-12-16 08:22:20,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 08:22:20,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:20,548 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-12-16 08:22:20,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 08:22:20,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:20,749 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:20,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:20,750 INFO L85 PathProgramCache]: Analyzing trace with hash -634279146, now seen corresponding path program 1 times [2023-12-16 08:22:20,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:20,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799937450] [2023-12-16 08:22:20,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:20,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:20,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:20,753 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:20,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 08:22:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:20,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:22:20,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:22:20,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:20,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:20,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799937450] [2023-12-16 08:22:20,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799937450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:20,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:20,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:22:20,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564528605] [2023-12-16 08:22:20,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:20,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:22:20,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:20,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:22:20,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:20,862 INFO L87 Difference]: Start difference. First operand 781 states and 1007 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:21,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:21,338 INFO L93 Difference]: Finished difference Result 1765 states and 2314 transitions. [2023-12-16 08:22:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:22:21,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2023-12-16 08:22:21,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:21,345 INFO L225 Difference]: With dead ends: 1765 [2023-12-16 08:22:21,345 INFO L226 Difference]: Without dead ends: 1174 [2023-12-16 08:22:21,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:21,349 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 127 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:21,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 184 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:22:21,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2023-12-16 08:22:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1043. [2023-12-16 08:22:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1042 states have (on average 1.2466410748560461) internal successors, (1299), 1042 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1299 transitions. [2023-12-16 08:22:21,370 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1299 transitions. Word has length 118 [2023-12-16 08:22:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:21,370 INFO L495 AbstractCegarLoop]: Abstraction has 1043 states and 1299 transitions. [2023-12-16 08:22:21,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1299 transitions. [2023-12-16 08:22:21,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 08:22:21,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:21,382 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 08:22:21,388 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 [2023-12-16 08:22:21,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:21,586 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:21,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:21,586 INFO L85 PathProgramCache]: Analyzing trace with hash -596041872, now seen corresponding path program 1 times [2023-12-16 08:22:21,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:21,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99854432] [2023-12-16 08:22:21,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:21,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:21,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:21,589 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:21,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 08:22:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:21,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:22:21,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:21,693 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 08:22:21,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:21,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:21,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99854432] [2023-12-16 08:22:21,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99854432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:21,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:21,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:22:21,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468987369] [2023-12-16 08:22:21,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:21,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:22:21,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:21,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:22:21,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:21,696 INFO L87 Difference]: Start difference. First operand 1043 states and 1299 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:22,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:22,139 INFO L93 Difference]: Finished difference Result 2027 states and 2534 transitions. [2023-12-16 08:22:22,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:22:22,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-12-16 08:22:22,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:22,144 INFO L225 Difference]: With dead ends: 2027 [2023-12-16 08:22:22,144 INFO L226 Difference]: Without dead ends: 1174 [2023-12-16 08:22:22,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:22,146 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 159 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:22,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 27 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:22:22,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2023-12-16 08:22:22,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1043. [2023-12-16 08:22:22,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1042 states have (on average 1.2120921305182342) internal successors, (1263), 1042 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1263 transitions. [2023-12-16 08:22:22,166 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1263 transitions. Word has length 134 [2023-12-16 08:22:22,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:22,166 INFO L495 AbstractCegarLoop]: Abstraction has 1043 states and 1263 transitions. [2023-12-16 08:22:22,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:22,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1263 transitions. [2023-12-16 08:22:22,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 08:22:22,169 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:22,169 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 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] [2023-12-16 08:22:22,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 08:22:22,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:22,379 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:22,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:22,380 INFO L85 PathProgramCache]: Analyzing trace with hash -515880397, now seen corresponding path program 1 times [2023-12-16 08:22:22,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:22,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892709517] [2023-12-16 08:22:22,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:22,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:22,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:22,382 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:22,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 08:22:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:22,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:22:22,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:22,503 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-16 08:22:22,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:22,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:22,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892709517] [2023-12-16 08:22:22,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892709517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:22,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:22,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:22:22,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956550133] [2023-12-16 08:22:22,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:22,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:22:22,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:22,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:22:22,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:22,506 INFO L87 Difference]: Start difference. First operand 1043 states and 1263 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:22,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:22,983 INFO L93 Difference]: Finished difference Result 2289 states and 2766 transitions. [2023-12-16 08:22:22,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:22:22,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 145 [2023-12-16 08:22:22,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:22,988 INFO L225 Difference]: With dead ends: 2289 [2023-12-16 08:22:22,988 INFO L226 Difference]: Without dead ends: 1305 [2023-12-16 08:22:22,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:22,990 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 130 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:22,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 60 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:22:22,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2023-12-16 08:22:23,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1174. [2023-12-16 08:22:23,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 1173 states have (on average 1.1150895140664963) internal successors, (1308), 1173 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:23,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1308 transitions. [2023-12-16 08:22:23,012 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1308 transitions. Word has length 145 [2023-12-16 08:22:23,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:23,013 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 1308 transitions. [2023-12-16 08:22:23,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:23,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1308 transitions. [2023-12-16 08:22:23,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-16 08:22:23,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:23,016 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-16 08:22:23,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 08:22:23,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:23,219 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:23,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:23,219 INFO L85 PathProgramCache]: Analyzing trace with hash -909747062, now seen corresponding path program 1 times [2023-12-16 08:22:23,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:23,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255532267] [2023-12-16 08:22:23,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:23,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:23,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:23,221 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:23,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 08:22:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:23,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:22:23,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-16 08:22:23,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:23,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:23,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255532267] [2023-12-16 08:22:23,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255532267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:23,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:23,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:22:23,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022092215] [2023-12-16 08:22:23,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:23,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:22:23,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:23,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:22:23,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:23,457 INFO L87 Difference]: Start difference. First operand 1174 states and 1308 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:23,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:23,863 INFO L93 Difference]: Finished difference Result 2551 states and 2837 transitions. [2023-12-16 08:22:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:22:23,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 167 [2023-12-16 08:22:23,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:23,867 INFO L225 Difference]: With dead ends: 2551 [2023-12-16 08:22:23,868 INFO L226 Difference]: Without dead ends: 1305 [2023-12-16 08:22:23,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:23,870 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 104 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:23,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 47 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:22:23,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2023-12-16 08:22:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2023-12-16 08:22:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 1304 states have (on average 1.102760736196319) internal successors, (1438), 1304 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:23,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1438 transitions. [2023-12-16 08:22:23,893 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1438 transitions. Word has length 167 [2023-12-16 08:22:23,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:23,893 INFO L495 AbstractCegarLoop]: Abstraction has 1305 states and 1438 transitions. [2023-12-16 08:22:23,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:23,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1438 transitions. [2023-12-16 08:22:23,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-16 08:22:23,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:23,897 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2023-12-16 08:22:23,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 08:22:24,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:24,100 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:24,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:24,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1796382111, now seen corresponding path program 1 times [2023-12-16 08:22:24,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:24,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742649369] [2023-12-16 08:22:24,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:24,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:24,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:24,104 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:24,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 08:22:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:24,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:22:24,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:24,302 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 08:22:24,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:24,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:24,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742649369] [2023-12-16 08:22:24,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742649369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:24,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:24,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:22:24,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553306363] [2023-12-16 08:22:24,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:24,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:22:24,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:24,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:22:24,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:22:24,305 INFO L87 Difference]: Start difference. First operand 1305 states and 1438 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:24,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:24,842 INFO L93 Difference]: Finished difference Result 3337 states and 3700 transitions. [2023-12-16 08:22:24,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:22:24,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2023-12-16 08:22:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:24,848 INFO L225 Difference]: With dead ends: 3337 [2023-12-16 08:22:24,848 INFO L226 Difference]: Without dead ends: 2091 [2023-12-16 08:22:24,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:22:24,851 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 267 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:24,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 31 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:22:24,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2023-12-16 08:22:24,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2091. [2023-12-16 08:22:24,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 2090 states have (on average 1.0923444976076555) internal successors, (2283), 2090 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:24,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2283 transitions. [2023-12-16 08:22:24,882 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2283 transitions. Word has length 188 [2023-12-16 08:22:24,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:24,883 INFO L495 AbstractCegarLoop]: Abstraction has 2091 states and 2283 transitions. [2023-12-16 08:22:24,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:24,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2283 transitions. [2023-12-16 08:22:24,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-16 08:22:24,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:24,887 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-12-16 08:22:24,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 08:22:25,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:25,092 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:25,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:25,093 INFO L85 PathProgramCache]: Analyzing trace with hash 545620551, now seen corresponding path program 1 times [2023-12-16 08:22:25,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:25,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565600013] [2023-12-16 08:22:25,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:25,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:25,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:25,096 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:25,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 08:22:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:25,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:22:25,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-16 08:22:25,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:25,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:25,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565600013] [2023-12-16 08:22:25,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565600013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:25,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:25,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:22:25,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480324299] [2023-12-16 08:22:25,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:25,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:22:25,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:25,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:22:25,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:25,237 INFO L87 Difference]: Start difference. First operand 2091 states and 2283 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:25,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:25,599 INFO L93 Difference]: Finished difference Result 4647 states and 5075 transitions. [2023-12-16 08:22:25,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:22:25,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 223 [2023-12-16 08:22:25,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:25,604 INFO L225 Difference]: With dead ends: 4647 [2023-12-16 08:22:25,604 INFO L226 Difference]: Without dead ends: 2484 [2023-12-16 08:22:25,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:25,607 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 121 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:25,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 181 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:22:25,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2023-12-16 08:22:25,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 2222. [2023-12-16 08:22:25,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 2221 states have (on average 1.0895992796037821) internal successors, (2420), 2221 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:25,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 2420 transitions. [2023-12-16 08:22:25,641 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 2420 transitions. Word has length 223 [2023-12-16 08:22:25,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:25,641 INFO L495 AbstractCegarLoop]: Abstraction has 2222 states and 2420 transitions. [2023-12-16 08:22:25,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:25,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 2420 transitions. [2023-12-16 08:22:25,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-16 08:22:25,646 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:25,647 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 08:22:25,651 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 [2023-12-16 08:22:25,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:25,852 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:25,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:25,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1543135642, now seen corresponding path program 1 times [2023-12-16 08:22:25,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:25,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282291026] [2023-12-16 08:22:25,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:25,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:25,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:25,856 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:25,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 08:22:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:25,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 08:22:25,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:26,559 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 224 proven. 8 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-16 08:22:26,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 08:22:27,815 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 196 proven. 36 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-16 08:22:27,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:27,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282291026] [2023-12-16 08:22:27,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282291026] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 08:22:27,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 08:22:27,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 08:22:27,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620802717] [2023-12-16 08:22:27,816 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 08:22:27,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 08:22:27,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:27,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 08:22:27,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:22:27,818 INFO L87 Difference]: Start difference. First operand 2222 states and 2420 transitions. Second operand has 7 states, 7 states have (on average 36.0) internal successors, (252), 6 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:29,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:29,318 INFO L93 Difference]: Finished difference Result 5579 states and 6024 transitions. [2023-12-16 08:22:29,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 08:22:29,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.0) internal successors, (252), 6 states have internal predecessors, (252), 0 states have call successors, (0), 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 241 [2023-12-16 08:22:29,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:29,327 INFO L225 Difference]: With dead ends: 5579 [2023-12-16 08:22:29,328 INFO L226 Difference]: Without dead ends: 3416 [2023-12-16 08:22:29,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2023-12-16 08:22:29,331 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 930 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:29,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 87 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 08:22:29,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3416 states. [2023-12-16 08:22:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3416 to 2222. [2023-12-16 08:22:29,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 2221 states have (on average 1.0895992796037821) internal successors, (2420), 2221 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:29,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 2420 transitions. [2023-12-16 08:22:29,369 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 2420 transitions. Word has length 241 [2023-12-16 08:22:29,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:29,369 INFO L495 AbstractCegarLoop]: Abstraction has 2222 states and 2420 transitions. [2023-12-16 08:22:29,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.0) internal successors, (252), 6 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:29,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 2420 transitions. [2023-12-16 08:22:29,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-12-16 08:22:29,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:29,375 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:22:29,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 08:22:29,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:29,578 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:29,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1111793201, now seen corresponding path program 1 times [2023-12-16 08:22:29,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:29,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128005672] [2023-12-16 08:22:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:29,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:29,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:29,582 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:22:29,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 08:22:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:29,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:22:29,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-12-16 08:22:29,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:29,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:29,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128005672] [2023-12-16 08:22:29,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128005672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:29,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:29,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:22:29,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830984471] [2023-12-16 08:22:29,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:29,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:22:29,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:29,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:22:29,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:22:29,823 INFO L87 Difference]: Start difference. First operand 2222 states and 2420 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:30,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:30,323 INFO L93 Difference]: Finished difference Result 4778 states and 5185 transitions. [2023-12-16 08:22:30,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:22:30,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 263 [2023-12-16 08:22:30,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:30,328 INFO L225 Difference]: With dead ends: 4778 [2023-12-16 08:22:30,329 INFO L226 Difference]: Without dead ends: 2615 [2023-12-16 08:22:30,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:22:30,331 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 227 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:30,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 31 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:22:30,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2023-12-16 08:22:30,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 2222. [2023-12-16 08:22:30,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 2221 states have (on average 1.0742908599729852) internal successors, (2386), 2221 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:30,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 2386 transitions. [2023-12-16 08:22:30,364 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 2386 transitions. Word has length 263 [2023-12-16 08:22:30,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:30,365 INFO L495 AbstractCegarLoop]: Abstraction has 2222 states and 2386 transitions. [2023-12-16 08:22:30,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:30,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 2386 transitions. [2023-12-16 08:22:30,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-12-16 08:22:30,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:22:30,370 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 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, 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] [2023-12-16 08:22:30,379 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 [2023-12-16 08:22:30,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:30,574 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:22:30,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:22:30,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1032731907, now seen corresponding path program 1 times [2023-12-16 08:22:30,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:22:30,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862426802] [2023-12-16 08:22:30,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:22:30,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:22:30,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:22:30,576 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) [2023-12-16 08:22:30,577 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 [2023-12-16 08:22:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:22:30,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:22:30,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:22:30,893 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2023-12-16 08:22:30,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:22:30,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:22:30,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862426802] [2023-12-16 08:22:30,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862426802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:22:30,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:22:30,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:22:30,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899867352] [2023-12-16 08:22:30,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:22:30,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:22:30,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:22:30,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:22:30,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:30,895 INFO L87 Difference]: Start difference. First operand 2222 states and 2386 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:22:31,276 INFO L93 Difference]: Finished difference Result 2615 states and 2800 transitions. [2023-12-16 08:22:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:22:31,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 272 [2023-12-16 08:22:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:22:31,277 INFO L225 Difference]: With dead ends: 2615 [2023-12-16 08:22:31,277 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 08:22:31,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:22:31,279 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 54 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:22:31,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 25 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:22:31,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 08:22:31,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 08:22:31,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:31,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 08:22:31,280 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 272 [2023-12-16 08:22:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:22:31,281 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 08:22:31,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:22:31,281 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 08:22:31,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 08:22:31,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 08:22:31,291 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 [2023-12-16 08:22:31,487 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 [2023-12-16 08:22:31,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 08:22:31,838 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2023-12-16 08:22:31,838 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2023-12-16 08:22:31,838 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2023-12-16 08:22:31,838 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,838 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,838 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,839 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,840 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,841 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2023-12-16 08:22:31,842 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,843 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 604) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,844 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2023-12-16 08:22:31,845 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2023-12-16 08:22:31,846 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 08:22:31,846 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2023-12-16 08:22:31,846 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2023-12-16 08:22:31,846 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2023-12-16 08:22:31,846 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2023-12-16 08:22:31,846 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2023-12-16 08:22:31,846 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2023-12-16 08:22:31,846 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse1 (not (= (_ bv8 32) ~a12~0))) (.cse2 (not (= (_ bv1 32) ~a17~0))) (.cse3 (= (_ bv5 32) ~a16~0)) (.cse0 (= (_ bv1 32) ~a21~0))) (or (and (not (= ~a7~0 (_ bv1 32))) .cse0) (and (or .cse1 .cse2 (and (not (= (_ bv6 32) ~a16~0)) (not .cse3)) (not .cse0)) (= ~a8~0 (_ bv13 32))) (and (or .cse1 .cse2) .cse3 .cse0) (and (= (_ bv4 32) ~a16~0) .cse0))) [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 486) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,847 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,848 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,848 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,848 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 08:22:31,848 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2023-12-16 08:22:31,848 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2023-12-16 08:22:31,848 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2023-12-16 08:22:31,848 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2023-12-16 08:22:31,851 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:22:31,853 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:22:31,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:22:31 BoogieIcfgContainer [2023-12-16 08:22:31,862 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:22:31,863 INFO L158 Benchmark]: Toolchain (without parser) took 26863.49ms. Allocated memory was 198.2MB in the beginning and 552.6MB in the end (delta: 354.4MB). Free memory was 152.1MB in the beginning and 285.5MB in the end (delta: -133.4MB). Peak memory consumption was 222.6MB. Max. memory is 8.0GB. [2023-12-16 08:22:31,863 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 198.2MB. Free memory is still 156.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:22:31,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.52ms. Allocated memory is still 198.2MB. Free memory was 151.8MB in the beginning and 122.1MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-16 08:22:31,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.63ms. Allocated memory is still 198.2MB. Free memory was 122.1MB in the beginning and 116.1MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 08:22:31,864 INFO L158 Benchmark]: Boogie Preprocessor took 120.32ms. Allocated memory is still 198.2MB. Free memory was 116.1MB in the beginning and 170.3MB in the end (delta: -54.2MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2023-12-16 08:22:31,864 INFO L158 Benchmark]: RCFGBuilder took 1284.08ms. Allocated memory is still 198.2MB. Free memory was 170.3MB in the beginning and 151.4MB in the end (delta: 18.9MB). Peak memory consumption was 113.2MB. Max. memory is 8.0GB. [2023-12-16 08:22:31,864 INFO L158 Benchmark]: TraceAbstraction took 24858.94ms. Allocated memory was 198.2MB in the beginning and 552.6MB in the end (delta: 354.4MB). Free memory was 150.9MB in the beginning and 285.5MB in the end (delta: -134.6MB). Peak memory consumption was 220.3MB. Max. memory is 8.0GB. [2023-12-16 08:22:31,865 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 198.2MB. Free memory is still 156.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 506.52ms. Allocated memory is still 198.2MB. Free memory was 151.8MB in the beginning and 122.1MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 84.63ms. Allocated memory is still 198.2MB. Free memory was 122.1MB in the beginning and 116.1MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 120.32ms. Allocated memory is still 198.2MB. Free memory was 116.1MB in the beginning and 170.3MB in the end (delta: -54.2MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1284.08ms. Allocated memory is still 198.2MB. Free memory was 170.3MB in the beginning and 151.4MB in the end (delta: 18.9MB). Peak memory consumption was 113.2MB. Max. memory is 8.0GB. * TraceAbstraction took 24858.94ms. Allocated memory was 198.2MB in the beginning and 552.6MB in the end (delta: 354.4MB). Free memory was 150.9MB in the beginning and 285.5MB in the end (delta: -134.6MB). Peak memory consumption was 220.3MB. 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 - PositiveResult [Line: 486]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.8s, OverallIterations: 12, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2785 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2785 mSDsluCounter, 1022 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121 mSDsCounter, 619 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6605 IncrementalHoareTripleChecker+Invalid, 7224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 619 mSolverCounterUnsat, 901 mSDtfsCounter, 6605 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2290 GetRequests, 2249 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2222occurred in iteration=9, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 2244 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 25 NumberOfFragments, 58 HoareAnnotationTreeSize, 1 FormulaSimplifications, 2885 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 1 FormulaSimplificationsInter, 1049 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 2052 NumberOfCodeBlocks, 2052 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2280 ConstructedInterpolants, 0 QuantifiedInterpolants, 15940 SizeOfPredicates, 16 NumberOfNonLiveVariables, 3007 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 2177/2221 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((!((a7 == 1)) && (1 == a21)) || ((((!((8 == a12)) || !((1 == a17))) || (!((6 == a16)) && !((5 == a16)))) || !((1 == a21))) && (a8 == 13))) || (((!((8 == a12)) || !((1 == a17))) && (5 == a16)) && (1 == a21))) || ((4 == a16) && (1 == a21))) RESULT: Ultimate proved your program to be correct! [2023-12-16 08:22:31,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...