/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/Problem12_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 10:41:50,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 10:41:51,005 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 10:41:51,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 10:41:51,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 10:41:51,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 10:41:51,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 10:41:51,032 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 10:41:51,032 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 10:41:51,034 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 10:41:51,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 10:41:51,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 10:41:51,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 10:41:51,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 10:41:51,036 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 10:41:51,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 10:41:51,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 10:41:51,036 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 10:41:51,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 10:41:51,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 10:41:51,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 10:41:51,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 10:41:51,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 10:41:51,037 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 10:41:51,038 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 10:41:51,038 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 10:41:51,038 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 10:41:51,038 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 10:41:51,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 10:41:51,038 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 10:41:51,039 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 10:41:51,039 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 10:41:51,039 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 10:41:51,039 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 10:41:51,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 10:41:51,040 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 10:41:51,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 10:41:51,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 10:41:51,040 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 10:41:51,040 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 10:41:51,040 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 10:41:51,040 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 10:41:51,041 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 10:41:51,041 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 10:41:51,041 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 10:41:51,041 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 10:41:51,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 10:41:51,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 10:41:51,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 10:41:51,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 10:41:51,219 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 10:41:51,220 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 10:41:51,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label42.c [2023-12-22 10:41:52,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 10:41:52,683 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 10:41:52,683 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label42.c [2023-12-22 10:41:52,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f4f4709/fb59b91d997741d6a9193c8b0c3923c7/FLAGbfbd60030 [2023-12-22 10:41:52,720 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f4f4709/fb59b91d997741d6a9193c8b0c3923c7 [2023-12-22 10:41:52,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 10:41:52,723 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 10:41:52,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 10:41:52,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 10:41:52,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 10:41:52,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:41:52" (1/1) ... [2023-12-22 10:41:52,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2faebffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:52, skipping insertion in model container [2023-12-22 10:41:52,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:41:52" (1/1) ... [2023-12-22 10:41:52,833 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 10:41:53,001 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/Problem12_label42.c[3554,3567] [2023-12-22 10:41:53,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 10:41:53,629 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 10:41:53,645 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/Problem12_label42.c[3554,3567] [2023-12-22 10:41:53,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 10:41:54,006 INFO L206 MainTranslator]: Completed translation [2023-12-22 10:41:54,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54 WrapperNode [2023-12-22 10:41:54,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 10:41:54,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 10:41:54,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 10:41:54,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 10:41:54,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,157 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4756 [2023-12-22 10:41:54,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 10:41:54,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 10:41:54,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 10:41:54,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 10:41:54,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,199 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,240 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 10:41:54,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,299 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,364 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 10:41:54,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 10:41:54,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 10:41:54,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 10:41:54,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (1/1) ... [2023-12-22 10:41:54,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 10:41:54,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 10:41:54,425 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 10:41:54,446 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 10:41:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 10:41:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 10:41:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 10:41:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 10:41:54,497 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 10:41:54,499 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 10:42:19,241 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 10:42:19,285 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 10:42:19,285 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 10:42:19,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:42:19 BoogieIcfgContainer [2023-12-22 10:42:19,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 10:42:19,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 10:42:19,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 10:42:19,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 10:42:19,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:41:52" (1/3) ... [2023-12-22 10:42:19,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1045018e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:42:19, skipping insertion in model container [2023-12-22 10:42:19,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:41:54" (2/3) ... [2023-12-22 10:42:19,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1045018e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:42:19, skipping insertion in model container [2023-12-22 10:42:19,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:42:19" (3/3) ... [2023-12-22 10:42:19,292 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label42.c [2023-12-22 10:42:19,317 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 10:42:19,317 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 10:42:19,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 10:42:19,410 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;@5da32022, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 10:42:19,410 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 10:42:19,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 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 10:42:19,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-22 10:42:19,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:42:19,436 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] [2023-12-22 10:42:19,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:42:19,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:42:19,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1191088637, now seen corresponding path program 1 times [2023-12-22 10:42:19,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:42:19,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488778807] [2023-12-22 10:42:19,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:42:19,452 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 10:42:19,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:42:19,454 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 10:42:19,483 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 10:42:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:42:19,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 10:42:19,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:42:19,550 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 10:42:19,550 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:42:19,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:42:19,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488778807] [2023-12-22 10:42:19,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488778807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:42:19,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:42:19,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:42:19,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78502204] [2023-12-22 10:42:19,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:42:19,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 10:42:19,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:42:19,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 10:42:19,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 10:42:19,586 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:42:19,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:42:19,680 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2023-12-22 10:42:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 10:42:19,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-12-22 10:42:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:42:19,693 INFO L225 Difference]: With dead ends: 1511 [2023-12-22 10:42:19,693 INFO L226 Difference]: Without dead ends: 754 [2023-12-22 10:42:19,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 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 10:42:19,701 INFO L413 NwaCegarLoop]: 1438 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, 1438 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 10:42:19,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 10:42:19,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-12-22 10:42:19,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2023-12-22 10:42:19,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:42:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2023-12-22 10:42:19,762 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 25 [2023-12-22 10:42:19,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:42:19,762 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2023-12-22 10:42:19,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:42:19,762 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2023-12-22 10:42:19,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-22 10:42:19,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:42:19,763 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] [2023-12-22 10:42:19,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 10:42:19,966 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 10:42:19,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:42:19,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:42:19,966 INFO L85 PathProgramCache]: Analyzing trace with hash -607463271, now seen corresponding path program 1 times [2023-12-22 10:42:19,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:42:19,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370743913] [2023-12-22 10:42:19,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:42:19,967 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 10:42:19,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:42:19,969 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 10:42:19,990 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 10:42:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:42:19,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:42:19,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:42:20,054 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 10:42:20,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:42:20,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:42:20,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370743913] [2023-12-22 10:42:20,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370743913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:42:20,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:42:20,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:42:20,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776476377] [2023-12-22 10:42:20,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:42:20,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:42:20,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:42:20,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:42:20,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:42:20,057 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:42:53,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:42:53,850 INFO L93 Difference]: Finished difference Result 2258 states and 4311 transitions. [2023-12-22 10:42:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:42:53,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-12-22 10:42:53,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:42:53,857 INFO L225 Difference]: With dead ends: 2258 [2023-12-22 10:42:53,858 INFO L226 Difference]: Without dead ends: 1505 [2023-12-22 10:42:53,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 10:42:53,863 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 792 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2023-12-22 10:42:53,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 426 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 33.6s Time] [2023-12-22 10:42:53,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2023-12-22 10:42:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2023-12-22 10:42:53,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 1.6389627659574468) internal successors, (2465), 1504 states have internal predecessors, (2465), 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 10:42:53,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2465 transitions. [2023-12-22 10:42:53,907 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2465 transitions. Word has length 25 [2023-12-22 10:42:53,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:42:53,907 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2465 transitions. [2023-12-22 10:42:53,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:42:53,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2465 transitions. [2023-12-22 10:42:53,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-22 10:42:53,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:42:53,911 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:53,916 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 10:42:54,113 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 10:42:54,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:42:54,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:42:54,115 INFO L85 PathProgramCache]: Analyzing trace with hash -957415318, now seen corresponding path program 1 times [2023-12-22 10:42:54,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:42:54,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747648340] [2023-12-22 10:42:54,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:42:54,116 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 10:42:54,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:42:54,117 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 10:42:54,119 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 10:42:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:42:54,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:42:54,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:42:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:42:54,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:42:54,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:42:54,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747648340] [2023-12-22 10:42:54,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747648340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:42:54,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:42:54,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:42:54,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155732179] [2023-12-22 10:42:54,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:42:54,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:42:54,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:42:54,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:42:54,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:42:54,242 INFO L87 Difference]: Start difference. First operand 1505 states and 2465 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 10:43:32,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:43:32,589 INFO L93 Difference]: Finished difference Result 4511 states and 7392 transitions. [2023-12-22 10:43:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:43:32,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2023-12-22 10:43:32,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:43:32,598 INFO L225 Difference]: With dead ends: 4511 [2023-12-22 10:43:32,598 INFO L226 Difference]: Without dead ends: 3007 [2023-12-22 10:43:32,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 10:43:32,601 INFO L413 NwaCegarLoop]: 1147 mSDtfsCounter, 742 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2413 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 3094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.2s IncrementalHoareTripleChecker+Time [2023-12-22 10:43:32,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1154 Invalid, 3094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2413 Invalid, 0 Unknown, 0 Unchecked, 38.2s Time] [2023-12-22 10:43:32,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2023-12-22 10:43:32,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 3007. [2023-12-22 10:43:32,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3006 states have (on average 1.5372588157019296) internal successors, (4621), 3006 states have internal predecessors, (4621), 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 10:43:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 4621 transitions. [2023-12-22 10:43:32,638 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 4621 transitions. Word has length 96 [2023-12-22 10:43:32,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:43:32,639 INFO L495 AbstractCegarLoop]: Abstraction has 3007 states and 4621 transitions. [2023-12-22 10:43:32,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 10:43:32,639 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 4621 transitions. [2023-12-22 10:43:32,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-22 10:43:32,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:43:32,640 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:43:32,657 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 (4)] Ended with exit code 0 [2023-12-22 10:43:32,842 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 10:43:32,843 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:43:32,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:43:32,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1438271900, now seen corresponding path program 1 times [2023-12-22 10:43:32,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:43:32,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041173831] [2023-12-22 10:43:32,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:43:32,844 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 10:43:32,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:43:32,845 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 10:43:32,865 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 10:43:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:43:32,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 10:43:32,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:43:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:43:33,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:43:34,517 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:43:34,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:43:34,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041173831] [2023-12-22 10:43:34,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041173831] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 10:43:34,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 10:43:34,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-12-22 10:43:34,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361168991] [2023-12-22 10:43:34,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 10:43:34,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 10:43:34,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:43:34,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 10:43:34,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 10:43:34,519 INFO L87 Difference]: Start difference. First operand 3007 states and 4621 transitions. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 5 states have internal predecessors, (170), 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 10:44:51,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:44:51,066 INFO L93 Difference]: Finished difference Result 12785 states and 19826 transitions. [2023-12-22 10:44:51,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 10:44:51,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 5 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-22 10:44:51,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:44:51,093 INFO L225 Difference]: With dead ends: 12785 [2023-12-22 10:44:51,093 INFO L226 Difference]: Without dead ends: 9779 [2023-12-22 10:44:51,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-22 10:44:51,099 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 4449 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 10029 mSolverCounterSat, 3123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4449 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 13152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3123 IncrementalHoareTripleChecker+Valid, 10029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.0s IncrementalHoareTripleChecker+Time [2023-12-22 10:44:51,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4449 Valid, 196 Invalid, 13152 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3123 Valid, 10029 Invalid, 0 Unknown, 0 Unchecked, 76.0s Time] [2023-12-22 10:44:51,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9779 states. [2023-12-22 10:44:51,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 9766. [2023-12-22 10:44:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9766 states, 9765 states have (on average 1.3239119303635434) internal successors, (12928), 9765 states have internal predecessors, (12928), 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 10:44:51,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 12928 transitions. [2023-12-22 10:44:51,271 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 12928 transitions. Word has length 99 [2023-12-22 10:44:51,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:44:51,272 INFO L495 AbstractCegarLoop]: Abstraction has 9766 states and 12928 transitions. [2023-12-22 10:44:51,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 5 states have internal predecessors, (170), 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 10:44:51,273 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 12928 transitions. [2023-12-22 10:44:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 10:44:51,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:44:51,279 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 10:44:51,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 10:44:51,482 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 10:44:51,482 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:44:51,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:44:51,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1816514568, now seen corresponding path program 1 times [2023-12-22 10:44:51,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:44:51,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633387394] [2023-12-22 10:44:51,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:44:51,485 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 10:44:51,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:44:51,486 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 10:44:51,489 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 10:44:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:44:51,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 10:44:51,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:44:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:44:52,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:44:52,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:44:52,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633387394] [2023-12-22 10:44:52,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633387394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:44:52,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:44:52,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:44:52,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968979602] [2023-12-22 10:44:52,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:44:52,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 10:44:52,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:44:52,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 10:44:52,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 10:44:52,364 INFO L87 Difference]: Start difference. First operand 9766 states and 12928 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 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 10:45:19,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:45:19,652 INFO L93 Difference]: Finished difference Result 18065 states and 24323 transitions. [2023-12-22 10:45:19,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 10:45:19,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 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 172 [2023-12-22 10:45:19,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:45:19,688 INFO L225 Difference]: With dead ends: 18065 [2023-12-22 10:45:19,688 INFO L226 Difference]: Without dead ends: 9766 [2023-12-22 10:45:19,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 10:45:19,698 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 685 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3673 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 3677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2023-12-22 10:45:19,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 676 Invalid, 3677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3673 Invalid, 0 Unknown, 0 Unchecked, 27.1s Time] [2023-12-22 10:45:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2023-12-22 10:45:19,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9766. [2023-12-22 10:45:19,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9766 states, 9765 states have (on average 1.3229902713773682) internal successors, (12919), 9765 states have internal predecessors, (12919), 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 10:45:19,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 12919 transitions. [2023-12-22 10:45:19,818 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 12919 transitions. Word has length 172 [2023-12-22 10:45:19,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:45:19,819 INFO L495 AbstractCegarLoop]: Abstraction has 9766 states and 12919 transitions. [2023-12-22 10:45:19,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 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 10:45:19,821 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 12919 transitions. [2023-12-22 10:45:19,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-22 10:45:19,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:45:19,827 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:45:19,839 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 (6)] Ended with exit code 0 [2023-12-22 10:45:20,030 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 10:45:20,030 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:45:20,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:45:20,031 INFO L85 PathProgramCache]: Analyzing trace with hash 179549291, now seen corresponding path program 1 times [2023-12-22 10:45:20,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:45:20,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086323216] [2023-12-22 10:45:20,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:45:20,032 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 10:45:20,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:45:20,033 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 10:45:20,052 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 10:45:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:45:20,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 10:45:20,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:45:20,634 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-22 10:45:20,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:45:20,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:45:20,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086323216] [2023-12-22 10:45:20,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086323216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:45:20,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:45:20,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:45:20,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157835802] [2023-12-22 10:45:20,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:45:20,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:45:20,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:45:20,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:45:20,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:45:20,636 INFO L87 Difference]: Start difference. First operand 9766 states and 12919 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 2 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:45:52,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:45:52,281 INFO L93 Difference]: Finished difference Result 20282 states and 27053 transitions. [2023-12-22 10:45:52,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:45:52,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 2 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2023-12-22 10:45:52,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:45:52,306 INFO L225 Difference]: With dead ends: 20282 [2023-12-22 10:45:52,307 INFO L226 Difference]: Without dead ends: 12019 [2023-12-22 10:45:52,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 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 10:45:52,316 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 610 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2413 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 2413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.5s IncrementalHoareTripleChecker+Time [2023-12-22 10:45:52,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 683 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 2413 Invalid, 0 Unknown, 0 Unchecked, 31.5s Time] [2023-12-22 10:45:52,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12019 states. [2023-12-22 10:45:52,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12019 to 12019. [2023-12-22 10:45:52,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12019 states, 12018 states have (on average 1.2859044766184058) internal successors, (15454), 12018 states have internal predecessors, (15454), 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 10:45:52,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12019 states to 12019 states and 15454 transitions. [2023-12-22 10:45:52,452 INFO L78 Accepts]: Start accepts. Automaton has 12019 states and 15454 transitions. Word has length 245 [2023-12-22 10:45:52,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:45:52,452 INFO L495 AbstractCegarLoop]: Abstraction has 12019 states and 15454 transitions. [2023-12-22 10:45:52,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 2 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:45:52,453 INFO L276 IsEmpty]: Start isEmpty. Operand 12019 states and 15454 transitions. [2023-12-22 10:45:52,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-22 10:45:52,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:45:52,455 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 10:45:52,461 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 10:45:52,659 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 10:45:52,660 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:45:52,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:45:52,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2019495462, now seen corresponding path program 1 times [2023-12-22 10:45:52,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:45:52,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253555723] [2023-12-22 10:45:52,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:45:52,662 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 10:45:52,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:45:52,663 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 10:45:52,664 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 10:45:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:45:52,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 10:45:52,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:45:55,189 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 47 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:45:55,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:45:58,295 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 145 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:45:58,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:45:58,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253555723] [2023-12-22 10:45:58,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253555723] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 10:45:58,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 10:45:58,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 10:45:58,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453880416] [2023-12-22 10:45:58,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 10:45:58,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 10:45:58,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:45:58,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 10:45:58,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 10:45:58,297 INFO L87 Difference]: Start difference. First operand 12019 states and 15454 transitions. Second operand has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 6 states have internal predecessors, (520), 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 10:46:46,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:46:46,864 INFO L93 Difference]: Finished difference Result 27067 states and 35248 transitions. [2023-12-22 10:46:46,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 10:46:46,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 6 states have internal predecessors, (520), 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 280 [2023-12-22 10:46:46,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:46:46,886 INFO L225 Difference]: With dead ends: 27067 [2023-12-22 10:46:46,886 INFO L226 Difference]: Without dead ends: 15800 [2023-12-22 10:46:46,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-22 10:46:46,895 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 4469 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 7442 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4469 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 8231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 7442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.2s IncrementalHoareTripleChecker+Time [2023-12-22 10:46:46,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4469 Valid, 1162 Invalid, 8231 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [789 Valid, 7442 Invalid, 0 Unknown, 0 Unchecked, 48.2s Time] [2023-12-22 10:46:46,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15800 states. [2023-12-22 10:46:47,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15800 to 14272. [2023-12-22 10:46:47,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14272 states, 14271 states have (on average 1.2455328988858525) internal successors, (17775), 14271 states have internal predecessors, (17775), 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 10:46:47,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14272 states to 14272 states and 17775 transitions. [2023-12-22 10:46:47,029 INFO L78 Accepts]: Start accepts. Automaton has 14272 states and 17775 transitions. Word has length 280 [2023-12-22 10:46:47,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:46:47,030 INFO L495 AbstractCegarLoop]: Abstraction has 14272 states and 17775 transitions. [2023-12-22 10:46:47,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 6 states have internal predecessors, (520), 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 10:46:47,030 INFO L276 IsEmpty]: Start isEmpty. Operand 14272 states and 17775 transitions. [2023-12-22 10:46:47,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-12-22 10:46:47,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:46:47,034 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:47,039 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 10:46:47,237 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 10:46:47,237 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:46:47,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:46:47,238 INFO L85 PathProgramCache]: Analyzing trace with hash 414753101, now seen corresponding path program 1 times [2023-12-22 10:46:47,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:46:47,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385488705] [2023-12-22 10:46:47,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:46:47,239 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 10:46:47,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:46:47,240 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 10:46:47,242 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 10:46:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:46:47,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 10:46:47,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:46:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 198 proven. 84 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-22 10:46:47,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:46:48,026 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-22 10:46:48,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:46:48,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385488705] [2023-12-22 10:46:48,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385488705] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 10:46:48,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 10:46:48,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 10:46:48,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619631090] [2023-12-22 10:46:48,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:46:48,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:46:48,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:46:48,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:46:48,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:46:48,028 INFO L87 Difference]: Start difference. First operand 14272 states and 17775 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 10:46:50,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:47:55,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:47:58,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:48:05,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:48:05,283 INFO L93 Difference]: Finished difference Result 36804 states and 47022 transitions. [2023-12-22 10:48:05,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:48:05,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 331 [2023-12-22 10:48:05,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:48:05,316 INFO L225 Difference]: With dead ends: 36804 [2023-12-22 10:48:05,316 INFO L226 Difference]: Without dead ends: 23284 [2023-12-22 10:48:05,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:48:05,389 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 682 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.0s IncrementalHoareTripleChecker+Time [2023-12-22 10:48:05,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1368 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 2513 Invalid, 0 Unknown, 0 Unchecked, 77.0s Time] [2023-12-22 10:48:05,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23284 states. [2023-12-22 10:48:05,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23284 to 23284. [2023-12-22 10:48:05,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23284 states, 23283 states have (on average 1.2314564274363269) internal successors, (28672), 23283 states have internal predecessors, (28672), 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 10:48:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23284 states to 23284 states and 28672 transitions. [2023-12-22 10:48:05,578 INFO L78 Accepts]: Start accepts. Automaton has 23284 states and 28672 transitions. Word has length 331 [2023-12-22 10:48:05,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:48:05,579 INFO L495 AbstractCegarLoop]: Abstraction has 23284 states and 28672 transitions. [2023-12-22 10:48:05,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 10:48:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 23284 states and 28672 transitions. [2023-12-22 10:48:05,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-12-22 10:48:05,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:48:05,583 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:48:05,594 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 10:48:05,787 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 10:48:05,788 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:48:05,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:48:05,788 INFO L85 PathProgramCache]: Analyzing trace with hash 806847756, now seen corresponding path program 1 times [2023-12-22 10:48:05,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:48:05,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767663654] [2023-12-22 10:48:05,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:48:05,789 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 10:48:05,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:48:05,790 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 10:48:05,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 10:48:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:48:05,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 10:48:05,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:48:06,256 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 198 proven. 110 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-22 10:48:06,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:48:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-22 10:48:06,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:48:06,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767663654] [2023-12-22 10:48:06,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767663654] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 10:48:06,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 10:48:06,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 10:48:06,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584922125] [2023-12-22 10:48:06,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:48:06,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:48:06,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:48:06,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:48:06,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:48:06,539 INFO L87 Difference]: Start difference. First operand 23284 states and 28672 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 10:48:45,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:48:45,674 INFO L93 Difference]: Finished difference Result 54077 states and 66505 transitions. [2023-12-22 10:48:45,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:48:45,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 357 [2023-12-22 10:48:45,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:48:45,720 INFO L225 Difference]: With dead ends: 54077 [2023-12-22 10:48:45,720 INFO L226 Difference]: Without dead ends: 31545 [2023-12-22 10:48:45,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:48:45,740 INFO L413 NwaCegarLoop]: 1371 mSDtfsCounter, 653 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2423 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 2423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2023-12-22 10:48:45,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1378 Invalid, 2698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 2423 Invalid, 0 Unknown, 0 Unchecked, 38.8s Time] [2023-12-22 10:48:45,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31545 states. [2023-12-22 10:48:46,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31545 to 30794. [2023-12-22 10:48:46,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30794 states, 30793 states have (on average 1.2022862338843243) internal successors, (37022), 30793 states have internal predecessors, (37022), 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 10:48:46,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30794 states to 30794 states and 37022 transitions. [2023-12-22 10:48:46,104 INFO L78 Accepts]: Start accepts. Automaton has 30794 states and 37022 transitions. Word has length 357 [2023-12-22 10:48:46,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:48:46,106 INFO L495 AbstractCegarLoop]: Abstraction has 30794 states and 37022 transitions. [2023-12-22 10:48:46,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 10:48:46,106 INFO L276 IsEmpty]: Start isEmpty. Operand 30794 states and 37022 transitions. [2023-12-22 10:48:46,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-12-22 10:48:46,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:48:46,111 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:48:46,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 10:48:46,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:48:46,316 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:48:46,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:48:46,317 INFO L85 PathProgramCache]: Analyzing trace with hash 392216829, now seen corresponding path program 1 times [2023-12-22 10:48:46,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:48:46,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342305822] [2023-12-22 10:48:46,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:48:46,318 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 10:48:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:48:46,319 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 10:48:46,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 10:48:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:48:46,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:48:46,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:48:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-22 10:48:46,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:48:46,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:48:46,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342305822] [2023-12-22 10:48:46,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342305822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:48:46,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:48:46,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:48:46,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544460490] [2023-12-22 10:48:46,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:48:46,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:48:46,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:48:46,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:48:46,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:48:46,593 INFO L87 Difference]: Start difference. First operand 30794 states and 37022 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 10:49:21,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:49:21,066 INFO L93 Difference]: Finished difference Result 68346 states and 83325 transitions. [2023-12-22 10:49:21,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:49:21,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 363 [2023-12-22 10:49:21,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:49:21,115 INFO L225 Difference]: With dead ends: 68346 [2023-12-22 10:49:21,115 INFO L226 Difference]: Without dead ends: 38304 [2023-12-22 10:49:21,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 361 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 10:49:21,142 INFO L413 NwaCegarLoop]: 1004 mSDtfsCounter, 690 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 2977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2023-12-22 10:49:21,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1011 Invalid, 2977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 34.0s Time] [2023-12-22 10:49:21,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38304 states. [2023-12-22 10:49:21,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38304 to 37553. [2023-12-22 10:49:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37553 states, 37552 states have (on average 1.2094961653174265) internal successors, (45419), 37552 states have internal predecessors, (45419), 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 10:49:21,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37553 states to 37553 states and 45419 transitions. [2023-12-22 10:49:21,611 INFO L78 Accepts]: Start accepts. Automaton has 37553 states and 45419 transitions. Word has length 363 [2023-12-22 10:49:21,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:49:21,612 INFO L495 AbstractCegarLoop]: Abstraction has 37553 states and 45419 transitions. [2023-12-22 10:49:21,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 10:49:21,612 INFO L276 IsEmpty]: Start isEmpty. Operand 37553 states and 45419 transitions. [2023-12-22 10:49:21,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2023-12-22 10:49:21,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:49:21,625 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:49:21,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 10:49:21,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:49:21,830 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:49:21,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:49:21,830 INFO L85 PathProgramCache]: Analyzing trace with hash 50620990, now seen corresponding path program 1 times [2023-12-22 10:49:21,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:49:21,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042707588] [2023-12-22 10:49:21,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:49:21,833 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 10:49:21,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:49:21,834 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 10:49:21,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 10:49:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:49:22,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:49:22,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:49:22,267 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-12-22 10:49:22,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:49:22,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:49:22,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042707588] [2023-12-22 10:49:22,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042707588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:49:22,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:49:22,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:49:22,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971979658] [2023-12-22 10:49:22,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:49:22,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:49:22,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:49:22,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:49:22,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:49:22,269 INFO L87 Difference]: Start difference. First operand 37553 states and 45419 transitions. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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 10:50:02,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:50:02,463 INFO L93 Difference]: Finished difference Result 87121 states and 108256 transitions. [2023-12-22 10:50:02,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:50:02,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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 545 [2023-12-22 10:50:02,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:50:02,545 INFO L225 Difference]: With dead ends: 87121 [2023-12-22 10:50:02,545 INFO L226 Difference]: Without dead ends: 50320 [2023-12-22 10:50:02,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 543 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 10:50:02,608 INFO L413 NwaCegarLoop]: 1377 mSDtfsCounter, 623 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 2945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2023-12-22 10:50:02,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1384 Invalid, 2945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 39.7s Time] [2023-12-22 10:50:02,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50320 states. [2023-12-22 10:50:03,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50320 to 48067. [2023-12-22 10:50:03,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48067 states, 48066 states have (on average 1.1988723838056006) internal successors, (57625), 48066 states have internal predecessors, (57625), 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 10:50:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48067 states to 48067 states and 57625 transitions. [2023-12-22 10:50:03,188 INFO L78 Accepts]: Start accepts. Automaton has 48067 states and 57625 transitions. Word has length 545 [2023-12-22 10:50:03,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:50:03,189 INFO L495 AbstractCegarLoop]: Abstraction has 48067 states and 57625 transitions. [2023-12-22 10:50:03,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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 10:50:03,189 INFO L276 IsEmpty]: Start isEmpty. Operand 48067 states and 57625 transitions. [2023-12-22 10:50:03,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2023-12-22 10:50:03,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:50:03,203 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:03,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 10:50:03,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:50:03,411 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:50:03,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:50:03,411 INFO L85 PathProgramCache]: Analyzing trace with hash -838611656, now seen corresponding path program 1 times [2023-12-22 10:50:03,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:50:03,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391307432] [2023-12-22 10:50:03,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:50:03,414 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 10:50:03,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:50:03,415 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 10:50:03,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 10:50:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:50:03,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 10:50:03,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:50:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 71 proven. 377 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:50:05,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:50:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 331 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:50:17,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:50:17,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391307432] [2023-12-22 10:50:17,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391307432] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 10:50:17,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 10:50:17,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 10:50:17,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882534808] [2023-12-22 10:50:17,116 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 10:50:17,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 10:50:17,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:50:17,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 10:50:17,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 10:50:17,118 INFO L87 Difference]: Start difference. First operand 48067 states and 57625 transitions. Second operand has 7 states, 7 states have (on average 173.71428571428572) internal successors, (1216), 7 states have internal predecessors, (1216), 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 10:50:43,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:50:48,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:50:50,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:50:57,198 WARN L539 Checker$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 10:51:01,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:51:07,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:51:22,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:51:41,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:51:42,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:51:48,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:52:27,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:52:33,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:52:35,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:52:49,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:52:50,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:53:06,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:53:19,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:53:23,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:53:38,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:53:42,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:53:44,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:53:55,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:54:08,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:54:21,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:54:31,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:55:04,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:55:19,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:55:27,939 WARN L539 Checker$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 10:55:38,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:55:40,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:55:50,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:56:16,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 10:56:26,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 10:56:26,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1246 GetRequests, 1238 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-22 10:56:26,485 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 3702 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 9435 mSolverCounterSat, 1370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 343.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3702 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 10805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1370 IncrementalHoareTripleChecker+Valid, 9435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 368.4s IncrementalHoareTripleChecker+Time [2023-12-22 10:56:26,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3702 Valid, 78 Invalid, 10805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1370 Valid, 9435 Invalid, 0 Unknown, 0 Unchecked, 368.4s Time] [2023-12-22 10:56:26,486 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 10:56:26,495 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 10:56:26,495 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 10:56:26,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 10:56:26,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:56:26,688 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (48067states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (44101 states constructed, input type IntersectNwa). [2023-12-22 10:56:26,692 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:56:26,693 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 10:56:26,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 10:56:26 BoogieIcfgContainer [2023-12-22 10:56:26,700 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 10:56:26,700 INFO L158 Benchmark]: Toolchain (without parser) took 873976.60ms. Allocated memory was 287.3MB in the beginning and 676.3MB in the end (delta: 389.0MB). Free memory was 224.5MB in the beginning and 162.8MB in the end (delta: 61.6MB). Peak memory consumption was 513.5MB. Max. memory is 8.0GB. [2023-12-22 10:56:26,700 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 10:56:26,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1281.59ms. Allocated memory is still 287.3MB. Free memory was 224.0MB in the beginning and 229.8MB in the end (delta: -5.8MB). Peak memory consumption was 139.8MB. Max. memory is 8.0GB. [2023-12-22 10:56:26,701 INFO L158 Benchmark]: Boogie Procedure Inliner took 149.52ms. Allocated memory is still 287.3MB. Free memory was 229.8MB in the beginning and 195.2MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-12-22 10:56:26,701 INFO L158 Benchmark]: Boogie Preprocessor took 235.43ms. Allocated memory is still 287.3MB. Free memory was 195.2MB in the beginning and 158.5MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-22 10:56:26,701 INFO L158 Benchmark]: RCFGBuilder took 24891.33ms. Allocated memory was 287.3MB in the beginning and 504.4MB in the end (delta: 217.1MB). Free memory was 158.0MB in the beginning and 258.9MB in the end (delta: -100.9MB). Peak memory consumption was 159.8MB. Max. memory is 8.0GB. [2023-12-22 10:56:26,701 INFO L158 Benchmark]: TraceAbstraction took 847412.68ms. Allocated memory was 504.4MB in the beginning and 676.3MB in the end (delta: 172.0MB). Free memory was 258.4MB in the beginning and 162.8MB in the end (delta: 95.5MB). Peak memory consumption was 329.9MB. Max. memory is 8.0GB. [2023-12-22 10:56:26,705 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1281.59ms. Allocated memory is still 287.3MB. Free memory was 224.0MB in the beginning and 229.8MB in the end (delta: -5.8MB). Peak memory consumption was 139.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 149.52ms. Allocated memory is still 287.3MB. Free memory was 229.8MB in the beginning and 195.2MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 235.43ms. Allocated memory is still 287.3MB. Free memory was 195.2MB in the beginning and 158.5MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * RCFGBuilder took 24891.33ms. Allocated memory was 287.3MB in the beginning and 504.4MB in the end (delta: 217.1MB). Free memory was 158.0MB in the beginning and 258.9MB in the end (delta: -100.9MB). Peak memory consumption was 159.8MB. Max. memory is 8.0GB. * TraceAbstraction took 847412.68ms. Allocated memory was 504.4MB in the beginning and 676.3MB in the end (delta: 172.0MB). Free memory was 258.4MB in the beginning and 162.8MB in the end (delta: 95.5MB). Peak memory consumption was 329.9MB. 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: 100]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 100). Cancelled while NwaCegarLoop was constructing difference of abstraction (48067states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (44101 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 756 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 847.3s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 817.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18097 SdHoareTripleChecker+Valid, 812.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18097 mSDsluCounter, 10954 SdHoareTripleChecker+Invalid, 720.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 656 mSDsCounter, 8672 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47429 IncrementalHoareTripleChecker+Invalid, 56101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8672 mSolverCounterUnsat, 10298 mSDtfsCounter, 47429 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4843 GetRequests, 4806 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48067occurred in iteration=11, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 5296 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 23.6s InterpolantComputationTime, 3159 NumberOfCodeBlocks, 3159 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 4830 ConstructedInterpolants, 0 QuantifiedInterpolants, 32121 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3795 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 3070/3932 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