/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/nla-digbench-scaling/hard-ll_valuebound5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:02:13,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:02:13,646 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:02:13,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:02:13,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:02:13,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:02:13,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:02:13,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:02:13,686 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:02:13,689 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:02:13,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:02:13,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:02:13,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:02:13,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:02:13,692 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:02:13,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:02:13,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:02:13,693 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:02:13,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:02:13,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:02:13,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:02:13,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:02:13,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:02:13,695 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:02:13,695 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:02:13,695 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:02:13,696 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:02:13,696 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:02:13,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:02:13,696 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:02:13,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:02:13,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:02:13,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:02:13,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:02:13,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:02:13,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:02:13,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:02:13,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:02:13,699 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:02:13,699 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:02:13,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:02:13,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:02:13,700 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:02:13,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:02:13,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:02:13,700 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:02:13,701 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:02:13,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:02:13,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:02:13,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:02:13,894 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:02:13,895 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:02:13,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound5.c [2023-12-16 17:02:15,045 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:02:15,231 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:02:15,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound5.c [2023-12-16 17:02:15,238 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b13e98102/ee2f2ac0e6924ae295288ee2e08d1c1b/FLAG271ced861 [2023-12-16 17:02:15,255 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b13e98102/ee2f2ac0e6924ae295288ee2e08d1c1b [2023-12-16 17:02:15,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:02:15,259 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:02:15,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:02:15,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:02:15,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:02:15,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9175935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15, skipping insertion in model container [2023-12-16 17:02:15,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,290 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:02:15,417 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound5.c[538,551] [2023-12-16 17:02:15,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:02:15,450 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:02:15,460 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound5.c[538,551] [2023-12-16 17:02:15,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:02:15,490 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:02:15,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15 WrapperNode [2023-12-16 17:02:15,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:02:15,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:02:15,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:02:15,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:02:15,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,536 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-12-16 17:02:15,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:02:15,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:02:15,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:02:15,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:02:15,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,547 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,559 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 17:02:15,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:02:15,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:02:15,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:02:15,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:02:15,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (1/1) ... [2023-12-16 17:02:15,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:02:15,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:02:15,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:02:15,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:02:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:02:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:02:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 17:02:15,634 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 17:02:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:02:15,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:02:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-16 17:02:15,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-16 17:02:15,690 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:02:15,691 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:02:16,028 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:02:16,050 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:02:16,050 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 17:02:16,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:02:16 BoogieIcfgContainer [2023-12-16 17:02:16,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:02:16,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:02:16,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:02:16,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:02:16,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:02:15" (1/3) ... [2023-12-16 17:02:16,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf95c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:02:16, skipping insertion in model container [2023-12-16 17:02:16,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:15" (2/3) ... [2023-12-16 17:02:16,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf95c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:02:16, skipping insertion in model container [2023-12-16 17:02:16,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:02:16" (3/3) ... [2023-12-16 17:02:16,058 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound5.c [2023-12-16 17:02:16,073 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:02:16,073 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:02:16,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:02:16,116 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;@381819b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:02:16,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:02:16,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 16 states have (on average 1.625) internal successors, (26), 17 states have internal predecessors, (26), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 17:02:16,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:02:16,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:02:16,127 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:02:16,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:02:16,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:02:16,132 INFO L85 PathProgramCache]: Analyzing trace with hash 760957734, now seen corresponding path program 1 times [2023-12-16 17:02:16,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:02:16,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143449696] [2023-12-16 17:02:16,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:02:16,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:16,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:02:16,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:02:16,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:02:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:02:16,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:02:16,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:02:16,222 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:02:16,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:02:16,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:02:16,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143449696] [2023-12-16 17:02:16,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143449696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:02:16,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:02:16,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:02:16,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971692053] [2023-12-16 17:02:16,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:02:16,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:02:16,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:02:16,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:02:16,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:02:16,264 INFO L87 Difference]: Start difference. First operand has 30 states, 16 states have (on average 1.625) internal successors, (26), 17 states have internal predecessors, (26), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:02:16,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:02:16,313 INFO L93 Difference]: Finished difference Result 58 states and 99 transitions. [2023-12-16 17:02:16,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:02:16,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2023-12-16 17:02:16,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:02:16,321 INFO L225 Difference]: With dead ends: 58 [2023-12-16 17:02:16,321 INFO L226 Difference]: Without dead ends: 28 [2023-12-16 17:02:16,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:02:16,327 INFO L413 NwaCegarLoop]: 38 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, 38 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:02:16,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:02:16,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-12-16 17:02:16,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-12-16 17:02:16,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 16 states have internal predecessors, (19), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 17:02:16,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2023-12-16 17:02:16,359 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 23 [2023-12-16 17:02:16,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:02:16,359 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2023-12-16 17:02:16,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:02:16,360 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2023-12-16 17:02:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:02:16,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:02:16,361 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:02:16,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:02:16,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:16,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:02:16,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:02:16,565 INFO L85 PathProgramCache]: Analyzing trace with hash -387749596, now seen corresponding path program 1 times [2023-12-16 17:02:16,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:02:16,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431785496] [2023-12-16 17:02:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:02:16,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:16,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:02:16,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:02:16,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:02:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:02:16,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:02:16,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:02:16,731 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 17:02:16,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:02:16,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:02:16,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431785496] [2023-12-16 17:02:16,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431785496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:02:16,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:02:16,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:02:16,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766371830] [2023-12-16 17:02:16,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:02:16,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:02:16,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:02:16,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:02:16,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:02:16,736 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:02:17,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:02:17,021 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2023-12-16 17:02:17,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:02:17,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2023-12-16 17:02:17,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:02:17,023 INFO L225 Difference]: With dead ends: 41 [2023-12-16 17:02:17,023 INFO L226 Difference]: Without dead ends: 39 [2023-12-16 17:02:17,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:02:17,025 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 11 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:02:17,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 119 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:02:17,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-12-16 17:02:17,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2023-12-16 17:02:17,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 17:02:17,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2023-12-16 17:02:17,034 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 23 [2023-12-16 17:02:17,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:02:17,034 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2023-12-16 17:02:17,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:02:17,035 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2023-12-16 17:02:17,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-16 17:02:17,035 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:02:17,035 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:02:17,040 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 [2023-12-16 17:02:17,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:17,239 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:02:17,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:02:17,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1391236353, now seen corresponding path program 1 times [2023-12-16 17:02:17,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:02:17,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150623429] [2023-12-16 17:02:17,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:02:17,241 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:17,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:02:17,242 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:02:17,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:02:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:02:17,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:02:17,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:02:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 17:02:17,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:02:17,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:02:17,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150623429] [2023-12-16 17:02:17,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150623429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:02:17,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:02:17,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:02:17,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138126445] [2023-12-16 17:02:17,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:02:17,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:02:17,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:02:17,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:02:17,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:02:17,334 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:02:17,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:02:17,709 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2023-12-16 17:02:17,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:02:17,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2023-12-16 17:02:17,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:02:17,714 INFO L225 Difference]: With dead ends: 45 [2023-12-16 17:02:17,714 INFO L226 Difference]: Without dead ends: 43 [2023-12-16 17:02:17,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:02:17,715 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 11 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:02:17,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 115 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:02:17,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-16 17:02:17,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2023-12-16 17:02:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 17:02:17,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2023-12-16 17:02:17,726 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 28 [2023-12-16 17:02:17,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:02:17,726 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2023-12-16 17:02:17,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:02:17,726 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2023-12-16 17:02:17,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-16 17:02:17,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:02:17,727 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:02:17,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:02:17,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:17,930 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:02:17,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:02:17,931 INFO L85 PathProgramCache]: Analyzing trace with hash 831418820, now seen corresponding path program 1 times [2023-12-16 17:02:17,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:02:17,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63996473] [2023-12-16 17:02:17,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:02:17,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:17,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:02:17,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:02:17,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:02:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:02:17,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:02:17,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:02:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 17:02:18,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:02:18,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:02:18,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63996473] [2023-12-16 17:02:18,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63996473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:02:18,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:02:18,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:02:18,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730742982] [2023-12-16 17:02:18,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:02:18,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:02:18,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:02:18,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:02:18,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:02:18,317 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:02:19,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:02:19,416 INFO L93 Difference]: Finished difference Result 64 states and 84 transitions. [2023-12-16 17:02:19,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:02:19,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 33 [2023-12-16 17:02:19,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:02:19,418 INFO L225 Difference]: With dead ends: 64 [2023-12-16 17:02:19,418 INFO L226 Difference]: Without dead ends: 50 [2023-12-16 17:02:19,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:02:19,420 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 34 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:02:19,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 137 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 17:02:19,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-16 17:02:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-16 17:02:19,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 30 states have internal predecessors, (33), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 17:02:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2023-12-16 17:02:19,431 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 33 [2023-12-16 17:02:19,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:02:19,432 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2023-12-16 17:02:19,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:02:19,432 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2023-12-16 17:02:19,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-16 17:02:19,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:02:19,433 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:02:19,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:02:19,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:19,637 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:02:19,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:02:19,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1016562388, now seen corresponding path program 1 times [2023-12-16 17:02:19,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:02:19,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500443122] [2023-12-16 17:02:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:02:19,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:19,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:02:19,639 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:02:19,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:02:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:02:19,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:02:19,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:02:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:02:20,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:02:22,439 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 17:02:22,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:02:22,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500443122] [2023-12-16 17:02:22,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500443122] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:02:22,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:02:22,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-16 17:02:22,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620945691] [2023-12-16 17:02:22,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:02:22,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:02:22,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:02:22,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:02:22,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:02:22,442 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-16 17:02:24,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:02:24,644 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2023-12-16 17:02:24,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:02:24,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2023-12-16 17:02:24,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:02:24,651 INFO L225 Difference]: With dead ends: 63 [2023-12-16 17:02:24,651 INFO L226 Difference]: Without dead ends: 61 [2023-12-16 17:02:24,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:02:24,653 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:02:24,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 113 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 17:02:24,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-16 17:02:24,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2023-12-16 17:02:24,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 36 states have internal predecessors, (41), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 17:02:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2023-12-16 17:02:24,674 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 40 [2023-12-16 17:02:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:02:24,675 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2023-12-16 17:02:24,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-16 17:02:24,675 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2023-12-16 17:02:24,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 17:02:24,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:02:24,676 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:02:24,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:02:24,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:24,881 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:02:24,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:02:24,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1147651331, now seen corresponding path program 1 times [2023-12-16 17:02:24,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:02:24,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810333312] [2023-12-16 17:02:24,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:02:24,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:24,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:02:24,884 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:02:24,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:02:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:02:24,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 17:02:24,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:02:25,385 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-16 17:02:25,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:02:27,771 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 17:02:27,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:02:27,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810333312] [2023-12-16 17:02:27,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810333312] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:02:27,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:02:27,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-12-16 17:02:27,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404162699] [2023-12-16 17:02:27,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:02:27,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:02:27,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:02:27,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:02:27,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:02:27,774 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:02:29,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:02:29,662 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2023-12-16 17:02:29,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:02:29,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 50 [2023-12-16 17:02:29,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:02:29,664 INFO L225 Difference]: With dead ends: 71 [2023-12-16 17:02:29,664 INFO L226 Difference]: Without dead ends: 69 [2023-12-16 17:02:29,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-12-16 17:02:29,665 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 10 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:02:29,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 108 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 17:02:29,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-12-16 17:02:29,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 66. [2023-12-16 17:02:29,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 41 states have internal predecessors, (45), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 17:02:29,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2023-12-16 17:02:29,688 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 50 [2023-12-16 17:02:29,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:02:29,688 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2023-12-16 17:02:29,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:02:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2023-12-16 17:02:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-16 17:02:29,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:02:29,690 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:02:29,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:02:29,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:29,895 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:02:29,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:02:29,896 INFO L85 PathProgramCache]: Analyzing trace with hash 769340106, now seen corresponding path program 1 times [2023-12-16 17:02:29,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:02:29,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328077448] [2023-12-16 17:02:29,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:02:29,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:02:29,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:02:29,898 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:02:29,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:02:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:02:30,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:02:30,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:02:31,888 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-16 17:02:31,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:02:39,979 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-16 17:02:39,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:02:39,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328077448] [2023-12-16 17:02:39,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328077448] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:02:39,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:02:39,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2023-12-16 17:02:39,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961830346] [2023-12-16 17:02:39,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:02:39,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:02:39,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:02:39,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:02:39,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=85, Unknown=1, NotChecked=0, Total=110 [2023-12-16 17:02:39,981 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-16 17:02:45,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 17:02:55,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 17:02:59,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 17:03:03,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 17:03:07,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 17:03:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:03:11,981 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2023-12-16 17:03:11,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:03:11,991 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 51 [2023-12-16 17:03:11,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:03:11,993 INFO L225 Difference]: With dead ends: 72 [2023-12-16 17:03:11,993 INFO L226 Difference]: Without dead ends: 61 [2023-12-16 17:03:11,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=51, Invalid=158, Unknown=1, NotChecked=0, Total=210 [2023-12-16 17:03:11,994 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 19 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 10 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:03:11,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 204 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 139 Invalid, 5 Unknown, 0 Unchecked, 26.2s Time] [2023-12-16 17:03:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-16 17:03:12,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-12-16 17:03:12,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 38 states have internal predecessors, (42), 17 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 17:03:12,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 75 transitions. [2023-12-16 17:03:12,007 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 75 transitions. Word has length 51 [2023-12-16 17:03:12,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:03:12,007 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 75 transitions. [2023-12-16 17:03:12,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-16 17:03:12,008 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2023-12-16 17:03:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 17:03:12,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:03:12,009 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 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] [2023-12-16 17:03:12,020 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 (8)] Ended with exit code 0 [2023-12-16 17:03:12,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:03:12,225 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:03:12,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:03:12,226 INFO L85 PathProgramCache]: Analyzing trace with hash 961839043, now seen corresponding path program 1 times [2023-12-16 17:03:12,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:03:12,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279308764] [2023-12-16 17:03:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:03:12,226 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:03:12,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:03:12,227 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:03:12,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:03:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:03:12,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:03:12,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:03:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-16 17:03:12,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:03:12,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:03:12,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279308764] [2023-12-16 17:03:12,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279308764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:03:12,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:03:12,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:03:12,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004134557] [2023-12-16 17:03:12,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:03:12,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:03:12,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:03:12,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:03:12,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:03:12,471 INFO L87 Difference]: Start difference. First operand 61 states and 75 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:03:17,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 17:03:17,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:03:17,224 INFO L93 Difference]: Finished difference Result 70 states and 85 transitions. [2023-12-16 17:03:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:03:17,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 68 [2023-12-16 17:03:17,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:03:17,227 INFO L225 Difference]: With dead ends: 70 [2023-12-16 17:03:17,227 INFO L226 Difference]: Without dead ends: 62 [2023-12-16 17:03:17,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:03:17,228 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:03:17,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-12-16 17:03:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-12-16 17:03:17,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-12-16 17:03:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.162162162162162) internal successors, (43), 38 states have internal predecessors, (43), 17 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 17:03:17,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2023-12-16 17:03:17,250 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 68 [2023-12-16 17:03:17,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:03:17,250 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2023-12-16 17:03:17,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:03:17,251 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2023-12-16 17:03:17,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 17:03:17,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:03:17,252 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 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] [2023-12-16 17:03:17,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:03:17,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:03:17,457 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:03:17,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:03:17,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1282123871, now seen corresponding path program 1 times [2023-12-16 17:03:17,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:03:17,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588727025] [2023-12-16 17:03:17,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:03:17,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:03:17,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:03:17,458 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:03:17,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:03:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:03:17,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-16 17:03:17,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:03:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-16 17:03:19,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 17:03:29,463 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 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:03:29,489 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:03:30,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:03:30,689 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 17:03:30,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 17:03:30,706 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:03:30,707 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 71 with TraceHistMax 9,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-16 17:03:30,711 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:03:30,717 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:03:30,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:03:30 BoogieIcfgContainer [2023-12-16 17:03:30,720 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:03:30,721 INFO L158 Benchmark]: Toolchain (without parser) took 75462.02ms. Allocated memory was 192.9MB in the beginning and 237.0MB in the end (delta: 44.0MB). Free memory was 148.0MB in the beginning and 209.3MB in the end (delta: -61.4MB). Peak memory consumption was 119.2MB. Max. memory is 8.0GB. [2023-12-16 17:03:30,721 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 192.9MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:03:30,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.61ms. Allocated memory is still 192.9MB. Free memory was 147.9MB in the beginning and 135.9MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 17:03:30,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.59ms. Allocated memory is still 192.9MB. Free memory was 135.9MB in the beginning and 134.7MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 17:03:30,722 INFO L158 Benchmark]: Boogie Preprocessor took 34.54ms. Allocated memory is still 192.9MB. Free memory was 134.7MB in the beginning and 132.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:03:30,722 INFO L158 Benchmark]: RCFGBuilder took 478.96ms. Allocated memory is still 192.9MB. Free memory was 132.8MB in the beginning and 119.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 17:03:30,722 INFO L158 Benchmark]: TraceAbstraction took 74667.53ms. Allocated memory was 192.9MB in the beginning and 237.0MB in the end (delta: 44.0MB). Free memory was 118.7MB in the beginning and 209.3MB in the end (delta: -90.6MB). Peak memory consumption was 89.8MB. Max. memory is 8.0GB. [2023-12-16 17:03:30,723 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 192.9MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.61ms. Allocated memory is still 192.9MB. Free memory was 147.9MB in the beginning and 135.9MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.59ms. Allocated memory is still 192.9MB. Free memory was 135.9MB in the beginning and 134.7MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.54ms. Allocated memory is still 192.9MB. Free memory was 134.7MB in the beginning and 132.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 478.96ms. Allocated memory is still 192.9MB. Free memory was 132.8MB in the beginning and 119.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 74667.53ms. Allocated memory was 192.9MB in the beginning and 237.0MB in the end (delta: 44.0MB). Free memory was 118.7MB in the beginning and 209.3MB in the end (delta: -90.6MB). Peak memory consumption was 89.8MB. 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: 17]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 17). Cancelled while NwaCegarLoop was analyzing trace of length 71 with TraceHistMax 9,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.6s, OverallIterations: 9, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 42.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 36.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 911 SdHoareTripleChecker+Invalid, 35.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 643 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 381 IncrementalHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 268 mSDtfsCounter, 381 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 456 GetRequests, 400 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 16.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=6, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 446 ConstructedInterpolants, 12 QuantifiedInterpolants, 1141 SizeOfPredicates, 18 NumberOfNonLiveVariables, 544 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 501/519 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