/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/Problem13_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 11:57:10,876 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 11:57:10,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 11:57:10,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 11:57:10,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 11:57:10,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 11:57:10,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 11:57:11,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 11:57:11,000 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 11:57:11,004 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 11:57:11,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 11:57:11,005 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 11:57:11,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 11:57:11,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 11:57:11,007 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 11:57:11,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 11:57:11,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 11:57:11,008 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 11:57:11,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 11:57:11,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 11:57:11,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 11:57:11,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 11:57:11,010 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 11:57:11,011 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 11:57:11,011 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 11:57:11,011 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 11:57:11,011 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 11:57:11,012 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 11:57:11,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 11:57:11,012 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 11:57:11,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 11:57:11,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 11:57:11,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 11:57:11,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 11:57:11,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 11:57:11,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 11:57:11,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 11:57:11,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 11:57:11,014 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 11:57:11,015 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 11:57:11,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 11:57:11,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 11:57:11,015 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 11:57:11,015 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 11:57:11,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 11:57:11,016 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 11:57:11,016 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 11:57:11,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 11:57:11,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 11:57:11,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 11:57:11,290 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 11:57:11,290 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 11:57:11,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label57.c [2023-12-22 11:57:12,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 11:57:13,042 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 11:57:13,043 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label57.c [2023-12-22 11:57:13,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e62adb7/aacee7e4f65b4384ba38957e0b564e74/FLAG7d7f5b058 [2023-12-22 11:57:13,100 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e62adb7/aacee7e4f65b4384ba38957e0b564e74 [2023-12-22 11:57:13,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 11:57:13,105 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 11:57:13,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 11:57:13,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 11:57:13,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 11:57:13,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:57:13" (1/1) ... [2023-12-22 11:57:13,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2917dbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:13, skipping insertion in model container [2023-12-22 11:57:13,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:57:13" (1/1) ... [2023-12-22 11:57:13,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 11:57:13,546 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/Problem13_label57.c[8676,8689] [2023-12-22 11:57:14,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 11:57:14,431 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 11:57:14,466 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/Problem13_label57.c[8676,8689] [2023-12-22 11:57:15,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 11:57:15,025 INFO L206 MainTranslator]: Completed translation [2023-12-22 11:57:15,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15 WrapperNode [2023-12-22 11:57:15,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 11:57:15,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 11:57:15,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 11:57:15,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 11:57:15,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,311 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5582 [2023-12-22 11:57:15,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 11:57:15,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 11:57:15,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 11:57:15,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 11:57:15,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,518 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 11:57:15,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,700 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 11:57:15,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 11:57:15,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 11:57:15,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 11:57:15,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (1/1) ... [2023-12-22 11:57:15,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 11:57:15,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 11:57:15,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 11:57:15,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 11:57:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 11:57:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 11:57:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 11:57:15,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 11:57:15,929 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 11:57:15,935 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 11:58:04,359 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 11:58:04,430 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 11:58:04,430 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 11:58:04,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:58:04 BoogieIcfgContainer [2023-12-22 11:58:04,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 11:58:04,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 11:58:04,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 11:58:04,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 11:58:04,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:57:13" (1/3) ... [2023-12-22 11:58:04,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7c01eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:58:04, skipping insertion in model container [2023-12-22 11:58:04,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:15" (2/3) ... [2023-12-22 11:58:04,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7c01eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:58:04, skipping insertion in model container [2023-12-22 11:58:04,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:58:04" (3/3) ... [2023-12-22 11:58:04,439 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label57.c [2023-12-22 11:58:04,454 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 11:58:04,454 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 11:58:04,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 11:58:04,531 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;@dc0803, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 11:58:04,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 11:58:04,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 1036 states, 1034 states have (on average 1.877176015473888) internal successors, (1941), 1035 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:58:04,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 11:58:04,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:04,546 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] [2023-12-22 11:58:04,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:04,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:04,551 INFO L85 PathProgramCache]: Analyzing trace with hash 20021903, now seen corresponding path program 1 times [2023-12-22 11:58:04,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:04,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299734487] [2023-12-22 11:58:04,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:04,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:58:04,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:04,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:58:04,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 11:58:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:04,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 11:58:04,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:04,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:58:04,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:58:04,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:04,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299734487] [2023-12-22 11:58:04,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299734487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:58:04,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:58:04,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:58:04,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161319285] [2023-12-22 11:58:04,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:04,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 11:58:04,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:04,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 11:58:04,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 11:58:04,713 INFO L87 Difference]: Start difference. First operand has 1036 states, 1034 states have (on average 1.877176015473888) internal successors, (1941), 1035 states have internal predecessors, (1941), 0 states have call successors, (0), 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 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:58:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:58:04,800 INFO L93 Difference]: Finished difference Result 2071 states and 3881 transitions. [2023-12-22 11:58:04,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 11:58:04,802 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2023-12-22 11:58:04,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:58:04,827 INFO L225 Difference]: With dead ends: 2071 [2023-12-22 11:58:04,827 INFO L226 Difference]: Without dead ends: 1034 [2023-12-22 11:58:04,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 11:58:04,835 INFO L413 NwaCegarLoop]: 1876 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, 1876 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 11:58:04,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1876 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 11:58:04,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-12-22 11:58:04,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2023-12-22 11:58:04,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1033 states have (on average 1.8160696999031947) internal successors, (1876), 1033 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:58:04,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1876 transitions. [2023-12-22 11:58:04,911 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1876 transitions. Word has length 60 [2023-12-22 11:58:04,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:58:04,912 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1876 transitions. [2023-12-22 11:58:04,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:58:04,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1876 transitions. [2023-12-22 11:58:04,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 11:58:04,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:04,913 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] [2023-12-22 11:58:04,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 11:58:05,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:58:05,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:05,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:05,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1581633312, now seen corresponding path program 1 times [2023-12-22 11:58:05,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:05,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59898127] [2023-12-22 11:58:05,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:05,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:58:05,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:05,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:58:05,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 11:58:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:05,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:58:05,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:58:05,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:58:05,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:05,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59898127] [2023-12-22 11:58:05,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59898127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:58:05,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:58:05,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:58:05,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646557997] [2023-12-22 11:58:05,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:05,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:58:05,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:05,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:58:05,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:05,325 INFO L87 Difference]: Start difference. First operand 1034 states and 1876 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:58:58,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:58:58,980 INFO L93 Difference]: Finished difference Result 2996 states and 5467 transitions. [2023-12-22 11:58:58,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:58:58,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2023-12-22 11:58:58,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:58:58,989 INFO L225 Difference]: With dead ends: 2996 [2023-12-22 11:58:58,990 INFO L226 Difference]: Without dead ends: 1963 [2023-12-22 11:58:58,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:58,992 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 1094 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 3179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.4s IncrementalHoareTripleChecker+Time [2023-12-22 11:58:58,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 945 Invalid, 3179 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [545 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 53.4s Time] [2023-12-22 11:58:58,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2023-12-22 11:58:59,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1950. [2023-12-22 11:58:59,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1949 states have (on average 1.6541816316059517) internal successors, (3224), 1949 states have internal predecessors, (3224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:58:59,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 3224 transitions. [2023-12-22 11:58:59,044 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 3224 transitions. Word has length 60 [2023-12-22 11:58:59,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:58:59,045 INFO L495 AbstractCegarLoop]: Abstraction has 1950 states and 3224 transitions. [2023-12-22 11:58:59,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:58:59,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 3224 transitions. [2023-12-22 11:58:59,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 11:58:59,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:59,048 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:58:59,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 11:58:59,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:58:59,251 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:59,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:59,252 INFO L85 PathProgramCache]: Analyzing trace with hash -960318246, now seen corresponding path program 1 times [2023-12-22 11:58:59,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:59,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50367282] [2023-12-22 11:58:59,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:59,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:58:59,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:59,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:58:59,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 11:58:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:59,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:58:59,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:59,526 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:58:59,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:58:59,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:59,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50367282] [2023-12-22 11:58:59,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50367282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:58:59,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:58:59,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:58:59,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404726449] [2023-12-22 11:58:59,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:59,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:58:59,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:59,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:58:59,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:59,529 INFO L87 Difference]: Start difference. First operand 1950 states and 3224 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) [2023-12-22 11:59:58,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:59:58,107 INFO L93 Difference]: Finished difference Result 5506 states and 9185 transitions. [2023-12-22 11:59:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:59:58,118 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 131 [2023-12-22 11:59:58,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:59:58,131 INFO L225 Difference]: With dead ends: 5506 [2023-12-22 11:59:58,131 INFO L226 Difference]: Without dead ends: 3557 [2023-12-22 11:59:58,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:59:58,134 INFO L413 NwaCegarLoop]: 985 mSDtfsCounter, 778 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 3250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 566 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.4s IncrementalHoareTripleChecker+Time [2023-12-22 11:59:58,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1172 Invalid, 3250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [566 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 58.4s Time] [2023-12-22 11:59:58,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2023-12-22 11:59:58,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3547. [2023-12-22 11:59:58,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 3546 states have (on average 1.4359842075578115) internal successors, (5092), 3546 states have internal predecessors, (5092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:59:58,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 5092 transitions. [2023-12-22 11:59:58,197 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 5092 transitions. Word has length 131 [2023-12-22 11:59:58,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:59:58,198 INFO L495 AbstractCegarLoop]: Abstraction has 3547 states and 5092 transitions. [2023-12-22 11:59:58,198 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) [2023-12-22 11:59:58,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 5092 transitions. [2023-12-22 11:59:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-22 11:59:58,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:59:58,203 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:59:58,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 11:59:58,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:59:58,409 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:59:58,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:59:58,410 INFO L85 PathProgramCache]: Analyzing trace with hash 276681381, now seen corresponding path program 1 times [2023-12-22 11:59:58,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:59:58,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282327285] [2023-12-22 11:59:58,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:59:58,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:59:58,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:59:58,413 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:59:58,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 11:59:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:59:58,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:59:58,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:59:58,718 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:59:58,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:59:58,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:59:58,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282327285] [2023-12-22 11:59:58,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282327285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:59:58,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:59:58,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:59:58,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698580149] [2023-12-22 11:59:58,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:59:58,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:59:58,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:59:58,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:59:58,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:59:58,721 INFO L87 Difference]: Start difference. First operand 3547 states and 5092 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:00:53,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:00:53,622 INFO L93 Difference]: Finished difference Result 7885 states and 11083 transitions. [2023-12-22 12:00:53,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:00:53,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2023-12-22 12:00:53,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:00:53,658 INFO L225 Difference]: With dead ends: 7885 [2023-12-22 12:00:53,658 INFO L226 Difference]: Without dead ends: 4339 [2023-12-22 12:00:53,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:00:53,666 INFO L413 NwaCegarLoop]: 1040 mSDtfsCounter, 694 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:00:53,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1176 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 54.7s Time] [2023-12-22 12:00:53,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2023-12-22 12:00:53,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 4334. [2023-12-22 12:00:53,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4334 states, 4333 states have (on average 1.368336025848142) internal successors, (5929), 4333 states have internal predecessors, (5929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:00:53,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4334 states to 4334 states and 5929 transitions. [2023-12-22 12:00:53,759 INFO L78 Accepts]: Start accepts. Automaton has 4334 states and 5929 transitions. Word has length 161 [2023-12-22 12:00:53,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:00:53,760 INFO L495 AbstractCegarLoop]: Abstraction has 4334 states and 5929 transitions. [2023-12-22 12:00:53,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:00:53,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4334 states and 5929 transitions. [2023-12-22 12:00:53,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 12:00:53,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:00:53,763 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:00:53,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 12:00:53,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:00:53,968 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:00:53,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:00:53,968 INFO L85 PathProgramCache]: Analyzing trace with hash -61386818, now seen corresponding path program 1 times [2023-12-22 12:00:53,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:00:53,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357909215] [2023-12-22 12:00:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:00:53,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:00:53,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:00:53,972 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:00:54,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 12:00:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:00:54,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:00:54,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:00:54,933 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:00:54,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:00:54,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:00:54,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357909215] [2023-12-22 12:00:54,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357909215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:00:54,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:00:54,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:00:54,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318712843] [2023-12-22 12:00:54,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:00:54,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:00:54,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:00:54,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:00:54,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:00:54,938 INFO L87 Difference]: Start difference. First operand 4334 states and 5929 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:01:48,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:01:48,806 INFO L93 Difference]: Finished difference Result 8667 states and 11857 transitions. [2023-12-22 12:01:48,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:01:48,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2023-12-22 12:01:48,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:01:48,831 INFO L225 Difference]: With dead ends: 8667 [2023-12-22 12:01:48,831 INFO L226 Difference]: Without dead ends: 4334 [2023-12-22 12:01:48,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:01:48,839 INFO L413 NwaCegarLoop]: 1088 mSDtfsCounter, 678 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:01:48,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1217 Invalid, 2577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 53.7s Time] [2023-12-22 12:01:48,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4334 states. [2023-12-22 12:01:48,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4334 to 4334. [2023-12-22 12:01:48,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4334 states, 4333 states have (on average 1.3591045465035771) internal successors, (5889), 4333 states have internal predecessors, (5889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:01:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4334 states to 4334 states and 5889 transitions. [2023-12-22 12:01:48,963 INFO L78 Accepts]: Start accepts. Automaton has 4334 states and 5889 transitions. Word has length 171 [2023-12-22 12:01:48,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:01:48,964 INFO L495 AbstractCegarLoop]: Abstraction has 4334 states and 5889 transitions. [2023-12-22 12:01:48,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:01:48,965 INFO L276 IsEmpty]: Start isEmpty. Operand 4334 states and 5889 transitions. [2023-12-22 12:01:48,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-22 12:01:48,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:01:48,974 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:01:48,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 12:01:49,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:01:49,178 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:01:49,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:01:49,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1781940264, now seen corresponding path program 1 times [2023-12-22 12:01:49,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:01:49,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995354287] [2023-12-22 12:01:49,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:01:49,180 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:01:49,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:01:49,184 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:01:49,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 12:01:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:01:49,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 12:01:49,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:01:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:01:51,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:02:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:02:03,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:02:03,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995354287] [2023-12-22 12:02:03,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995354287] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:02:03,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:02:03,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 12:02:03,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988316985] [2023-12-22 12:02:03,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:02:03,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 12:02:03,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:02:03,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 12:02:03,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 12:02:03,542 INFO L87 Difference]: Start difference. First operand 4334 states and 5889 transitions. Second operand has 7 states, 7 states have (on average 51.42857142857143) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:02:34,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:02:35,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:02:44,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:02:54,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:41,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:04:31,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:04:33,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:04:49,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:04:55,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:05:05,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:05:11,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:05:29,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:05:55,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:06:12,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:06:31,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:06:55,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:07:21,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:07:23,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:07:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:07:35,960 INFO L93 Difference]: Finished difference Result 18380 states and 28127 transitions. [2023-12-22 12:07:35,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:07:35,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.42857142857143) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 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 185 [2023-12-22 12:07:35,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:07:36,006 INFO L225 Difference]: With dead ends: 18380 [2023-12-22 12:07:36,006 INFO L226 Difference]: Without dead ends: 14834 [2023-12-22 12:07:36,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:07:36,016 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 6165 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 14580 mSolverCounterSat, 3706 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 277.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6165 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 18286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3706 IncrementalHoareTripleChecker+Valid, 14580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 330.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:07:36,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6165 Valid, 1292 Invalid, 18286 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3706 Valid, 14580 Invalid, 0 Unknown, 0 Unchecked, 330.5s Time] [2023-12-22 12:07:36,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14834 states. [2023-12-22 12:07:36,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14834 to 13831. [2023-12-22 12:07:36,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13831 states, 13830 states have (on average 1.2151120751988431) internal successors, (16805), 13830 states have internal predecessors, (16805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:07:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13831 states to 13831 states and 16805 transitions. [2023-12-22 12:07:36,269 INFO L78 Accepts]: Start accepts. Automaton has 13831 states and 16805 transitions. Word has length 185 [2023-12-22 12:07:36,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:07:36,271 INFO L495 AbstractCegarLoop]: Abstraction has 13831 states and 16805 transitions. [2023-12-22 12:07:36,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.42857142857143) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:07:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand 13831 states and 16805 transitions. [2023-12-22 12:07:36,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-22 12:07:36,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:07:36,276 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:07:36,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 12:07:36,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:07:36,480 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:07:36,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:07:36,481 INFO L85 PathProgramCache]: Analyzing trace with hash 546602188, now seen corresponding path program 1 times [2023-12-22 12:07:36,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:07:36,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988908487] [2023-12-22 12:07:36,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:07:36,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:07:36,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:07:36,483 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:07:36,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 12:07:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:07:36,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:07:36,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:07:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:07:36,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:07:36,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:07:36,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988908487] [2023-12-22 12:07:36,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988908487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:07:36,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:07:36,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:07:36,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520225961] [2023-12-22 12:07:36,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:07:36,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:07:36,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:07:36,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:07:36,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:07:36,870 INFO L87 Difference]: Start difference. First operand 13831 states and 16805 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:08:43,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:08:43,224 INFO L93 Difference]: Finished difference Result 30078 states and 38026 transitions. [2023-12-22 12:08:43,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:08:43,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2023-12-22 12:08:43,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:08:43,270 INFO L225 Difference]: With dead ends: 30078 [2023-12-22 12:08:43,270 INFO L226 Difference]: Without dead ends: 17824 [2023-12-22 12:08:43,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:08:43,285 INFO L413 NwaCegarLoop]: 1848 mSDtfsCounter, 780 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 3315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.1s IncrementalHoareTripleChecker+Time [2023-12-22 12:08:43,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1992 Invalid, 3315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [722 Valid, 2593 Invalid, 0 Unknown, 0 Unchecked, 66.1s Time] [2023-12-22 12:08:43,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17824 states. [2023-12-22 12:08:43,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17824 to 17005. [2023-12-22 12:08:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17005 states, 17004 states have (on average 1.1987179487179487) internal successors, (20383), 17004 states have internal predecessors, (20383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:08:43,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17005 states to 17005 states and 20383 transitions. [2023-12-22 12:08:43,500 INFO L78 Accepts]: Start accepts. Automaton has 17005 states and 20383 transitions. Word has length 259 [2023-12-22 12:08:43,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:08:43,500 INFO L495 AbstractCegarLoop]: Abstraction has 17005 states and 20383 transitions. [2023-12-22 12:08:43,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:08:43,501 INFO L276 IsEmpty]: Start isEmpty. Operand 17005 states and 20383 transitions. [2023-12-22 12:08:43,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-22 12:08:43,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:08:43,507 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:08:43,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 12:08:43,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:08:43,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:08:43,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:08:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash 441816450, now seen corresponding path program 1 times [2023-12-22 12:08:43,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:08:43,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445414287] [2023-12-22 12:08:43,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:08:43,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:08:43,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:08:43,723 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:08:43,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 12:08:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:08:43,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 12:08:43,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:08:46,502 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 117 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:08:46,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:09:03,496 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 117 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:09:03,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:09:03,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445414287] [2023-12-22 12:09:03,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445414287] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:09:03,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:09:03,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 12:09:03,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119176507] [2023-12-22 12:09:03,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:09:03,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 12:09:03,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:09:03,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 12:09:03,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 12:09:03,499 INFO L87 Difference]: Start difference. First operand 17005 states and 20383 transitions. Second operand has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:10:33,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 12:11:32,826 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 12:11:32,826 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 12:11:32,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:11:32,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:11:32,863 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 6070 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 9073 mSolverCounterSat, 928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6070 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 10001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 928 IncrementalHoareTripleChecker+Valid, 9073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 147.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:11:32,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6070 Valid, 942 Invalid, 10001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [928 Valid, 9073 Invalid, 0 Unknown, 0 Unchecked, 147.7s Time] [2023-12-22 12:11:32,865 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 12:11:32,869 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 [2023-12-22 12:11:33,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:11:33,067 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (17005states) and FLOYD_HOARE automaton (currently 12 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (28643 states constructed, input type IntersectNwa). [2023-12-22 12:11:33,072 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:11:33,075 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 12:11:33,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:11:33 BoogieIcfgContainer [2023-12-22 12:11:33,079 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 12:11:33,079 INFO L158 Benchmark]: Toolchain (without parser) took 859974.74ms. Allocated memory was 290.5MB in the beginning and 695.2MB in the end (delta: 404.8MB). Free memory was 222.4MB in the beginning and 395.8MB in the end (delta: -173.3MB). Peak memory consumption was 503.8MB. Max. memory is 8.0GB. [2023-12-22 12:11:33,079 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 195.0MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 12:11:33,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1920.40ms. Allocated memory is still 290.5MB. Free memory was 222.4MB in the beginning and 189.1MB in the end (delta: 33.4MB). Peak memory consumption was 176.3MB. Max. memory is 8.0GB. [2023-12-22 12:11:33,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 283.34ms. Allocated memory is still 290.5MB. Free memory was 188.5MB in the beginning and 144.0MB in the end (delta: 44.6MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2023-12-22 12:11:33,080 INFO L158 Benchmark]: Boogie Preprocessor took 475.90ms. Allocated memory was 290.5MB in the beginning and 423.6MB in the end (delta: 133.2MB). Free memory was 144.0MB in the beginning and 322.2MB in the end (delta: -178.3MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. [2023-12-22 12:11:33,081 INFO L158 Benchmark]: RCFGBuilder took 48642.15ms. Allocated memory was 423.6MB in the beginning and 695.2MB in the end (delta: 271.6MB). Free memory was 321.7MB in the beginning and 528.3MB in the end (delta: -206.6MB). Peak memory consumption was 273.2MB. Max. memory is 8.0GB. [2023-12-22 12:11:33,081 INFO L158 Benchmark]: TraceAbstraction took 808645.50ms. Allocated memory is still 695.2MB. Free memory was 527.2MB in the beginning and 395.8MB in the end (delta: 131.5MB). Peak memory consumption was 403.0MB. Max. memory is 8.0GB. [2023-12-22 12:11:33,082 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 195.0MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1920.40ms. Allocated memory is still 290.5MB. Free memory was 222.4MB in the beginning and 189.1MB in the end (delta: 33.4MB). Peak memory consumption was 176.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 283.34ms. Allocated memory is still 290.5MB. Free memory was 188.5MB in the beginning and 144.0MB in the end (delta: 44.6MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 475.90ms. Allocated memory was 290.5MB in the beginning and 423.6MB in the end (delta: 133.2MB). Free memory was 144.0MB in the beginning and 322.2MB in the end (delta: -178.3MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. * RCFGBuilder took 48642.15ms. Allocated memory was 423.6MB in the beginning and 695.2MB in the end (delta: 271.6MB). Free memory was 321.7MB in the beginning and 528.3MB in the end (delta: -206.6MB). Peak memory consumption was 273.2MB. Max. memory is 8.0GB. * TraceAbstraction took 808645.50ms. Allocated memory is still 695.2MB. Free memory was 527.2MB in the beginning and 395.8MB in the end (delta: 131.5MB). Peak memory consumption was 403.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 205]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 205). Cancelled while NwaCegarLoop was constructing difference of abstraction (17005states) and FLOYD_HOARE automaton (currently 12 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (28643 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1036 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 808.6s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 769.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16259 SdHoareTripleChecker+Valid, 764.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16259 mSDsluCounter, 10612 SdHoareTripleChecker+Invalid, 635.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1964 mSDsCounter, 6560 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36683 IncrementalHoareTripleChecker+Invalid, 43243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6560 mSolverCounterUnsat, 8648 mSDtfsCounter, 36683 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1890 GetRequests, 1863 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17005occurred in iteration=7, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 1850 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 35.5s InterpolantComputationTime, 1365 NumberOfCodeBlocks, 1365 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1878 ConstructedInterpolants, 0 QuantifiedInterpolants, 14274 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1727 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 620/984 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown