/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/divbin_unwindbound100.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 16:47:56,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 16:47:56,718 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 16:47:56,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 16:47:56,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 16:47:56,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 16:47:56,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 16:47:56,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 16:47:56,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 16:47:56,758 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 16:47:56,759 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 16:47:56,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 16:47:56,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 16:47:56,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 16:47:56,760 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 16:47:56,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 16:47:56,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 16:47:56,760 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 16:47:56,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 16:47:56,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 16:47:56,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 16:47:56,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 16:47:56,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 16:47:56,763 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 16:47:56,763 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 16:47:56,763 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 16:47:56,763 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 16:47:56,763 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 16:47:56,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 16:47:56,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 16:47:56,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 16:47:56,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 16:47:56,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 16:47:56,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 16:47:56,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 16:47:56,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 16:47:56,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 16:47:56,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 16:47:56,765 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 16:47:56,765 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 16:47:56,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 16:47:56,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 16:47:56,765 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 16:47:56,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 16:47:56,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 16:47:56,766 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 16:47:56,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 16:47:56,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 16:47:56,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 16:47:56,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 16:47:56,953 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 16:47:56,954 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 16:47:56,960 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound100.i [2023-12-16 16:47:57,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 16:47:58,143 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 16:47:58,144 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound100.i [2023-12-16 16:47:58,150 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ff601dc/9e7fcf7840ee484db89273ac8b33a03c/FLAG985c92fae [2023-12-16 16:47:58,165 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ff601dc/9e7fcf7840ee484db89273ac8b33a03c [2023-12-16 16:47:58,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 16:47:58,169 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 16:47:58,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 16:47:58,171 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 16:47:58,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 16:47:58,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd12960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58, skipping insertion in model container [2023-12-16 16:47:58,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 16:47:58,317 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/divbin_unwindbound100.i[950,963] [2023-12-16 16:47:58,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 16:47:58,347 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 16:47:58,358 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/divbin_unwindbound100.i[950,963] [2023-12-16 16:47:58,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 16:47:58,381 INFO L206 MainTranslator]: Completed translation [2023-12-16 16:47:58,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58 WrapperNode [2023-12-16 16:47:58,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 16:47:58,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 16:47:58,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 16:47:58,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 16:47:58,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,403 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2023-12-16 16:47:58,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 16:47:58,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 16:47:58,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 16:47:58,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 16:47:58,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,413 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,419 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 16:47:58,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,422 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 16:47:58,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 16:47:58,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 16:47:58,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 16:47:58,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (1/1) ... [2023-12-16 16:47:58,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 16:47:58,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 16:47:58,452 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 16:47:58,473 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 16:47:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 16:47:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 16:47:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 16:47:58,482 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 16:47:58,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 16:47:58,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 16:47:58,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-16 16:47:58,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-16 16:47:58,532 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 16:47:58,534 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 16:47:58,678 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 16:47:58,697 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 16:47:58,697 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 16:47:58,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:47:58 BoogieIcfgContainer [2023-12-16 16:47:58,698 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 16:47:58,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 16:47:58,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 16:47:58,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 16:47:58,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:47:58" (1/3) ... [2023-12-16 16:47:58,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:47:58, skipping insertion in model container [2023-12-16 16:47:58,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:47:58" (2/3) ... [2023-12-16 16:47:58,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:47:58, skipping insertion in model container [2023-12-16 16:47:58,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:47:58" (3/3) ... [2023-12-16 16:47:58,703 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound100.i [2023-12-16 16:47:58,714 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 16:47:58,714 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 16:47:58,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 16:47:58,746 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;@6cce38c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 16:47:58,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 16:47:58,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.588235294117647) internal successors, (27), 18 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-16 16:47:58,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-16 16:47:58,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:47:58,754 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:47:58,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:47:58,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:47:58,758 INFO L85 PathProgramCache]: Analyzing trace with hash -627064806, now seen corresponding path program 1 times [2023-12-16 16:47:58,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:47:58,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011627737] [2023-12-16 16:47:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:47:58,766 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 16:47:58,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:47:58,769 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 16:47:58,775 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 16:47:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:47:58,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 16:47:58,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:47:58,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 16:47:58,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:47:58,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:47:58,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011627737] [2023-12-16 16:47:58,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011627737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:47:58,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:47:58,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 16:47:58,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906627993] [2023-12-16 16:47:58,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:47:58,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 16:47:58,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:47:58,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 16:47:58,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 16:47:58,879 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.588235294117647) internal successors, (27), 18 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 16:47:58,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:47:58,901 INFO L93 Difference]: Finished difference Result 48 states and 71 transitions. [2023-12-16 16:47:58,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 16:47:58,903 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-12-16 16:47:58,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:47:58,907 INFO L225 Difference]: With dead ends: 48 [2023-12-16 16:47:58,907 INFO L226 Difference]: Without dead ends: 23 [2023-12-16 16:47:58,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 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 16:47:58,911 INFO L413 NwaCegarLoop]: 29 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, 29 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 16:47:58,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 16:47:58,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-12-16 16:47:58,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-12-16 16:47:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 16:47:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2023-12-16 16:47:58,933 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 18 [2023-12-16 16:47:58,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:47:58,933 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-12-16 16:47:58,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 16:47:58,933 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-12-16 16:47:58,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-16 16:47:58,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:47:58,934 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:47:58,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 16:47:59,135 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 16:47:59,135 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:47:59,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:47:59,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1502675692, now seen corresponding path program 1 times [2023-12-16 16:47:59,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:47:59,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461862415] [2023-12-16 16:47:59,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:47:59,137 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 16:47:59,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:47:59,138 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 16:47:59,139 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 16:47:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:47:59,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 16:47:59,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:47:59,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 16:47:59,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:47:59,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:47:59,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461862415] [2023-12-16 16:47:59,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461862415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:47:59,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:47:59,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 16:47:59,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528917529] [2023-12-16 16:47:59,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:47:59,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 16:47:59,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:47:59,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 16:47:59,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 16:47:59,247 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 16:47:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:47:59,269 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2023-12-16 16:47:59,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 16:47:59,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-12-16 16:47:59,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:47:59,271 INFO L225 Difference]: With dead ends: 37 [2023-12-16 16:47:59,271 INFO L226 Difference]: Without dead ends: 25 [2023-12-16 16:47:59,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 16:47:59,272 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 16:47:59,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 16:47:59,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-12-16 16:47:59,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-12-16 16:47:59,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 16:47:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2023-12-16 16:47:59,277 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 20 [2023-12-16 16:47:59,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:47:59,278 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2023-12-16 16:47:59,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 16:47:59,278 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2023-12-16 16:47:59,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-16 16:47:59,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:47:59,279 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:47:59,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 16:47:59,481 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 16:47:59,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:47:59,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:47:59,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1051975660, now seen corresponding path program 1 times [2023-12-16 16:47:59,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:47:59,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072130398] [2023-12-16 16:47:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:47:59,483 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 16:47:59,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:47:59,491 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 16:47:59,493 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 16:47:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:47:59,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 16:47:59,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:47:59,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 16:47:59,705 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:48:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 16:48:00,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:48:00,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072130398] [2023-12-16 16:48:00,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072130398] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 16:48:00,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 16:48:00,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-12-16 16:48:00,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59852824] [2023-12-16 16:48:00,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:48:00,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 16:48:00,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:48:00,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 16:48:00,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-16 16:48:00,448 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 16:48:00,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:48:00,984 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2023-12-16 16:48:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 16:48:00,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-12-16 16:48:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:48:00,986 INFO L225 Difference]: With dead ends: 37 [2023-12-16 16:48:00,987 INFO L226 Difference]: Without dead ends: 34 [2023-12-16 16:48:00,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-16 16:48:00,989 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 10 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 16:48:00,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 98 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 16:48:00,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-16 16:48:00,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-12-16 16:48:00,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-16 16:48:00,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2023-12-16 16:48:00,996 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 21 [2023-12-16 16:48:00,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:48:00,996 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2023-12-16 16:48:00,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 16:48:00,997 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-12-16 16:48:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 16:48:00,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:48:00,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:48:01,000 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 16:48:01,198 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 16:48:01,198 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:48:01,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:48:01,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1626197479, now seen corresponding path program 1 times [2023-12-16 16:48:01,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:48:01,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336268024] [2023-12-16 16:48:01,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:48:01,203 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 16:48:01,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:48:01,205 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 16:48:01,207 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 16:48:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:48:01,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 16:48:01,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:48:01,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 16:48:01,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:48:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 16:48:01,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:48:01,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336268024] [2023-12-16 16:48:01,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336268024] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:48:01,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:48:01,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-12-16 16:48:01,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087124082] [2023-12-16 16:48:01,344 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:48:01,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 16:48:01,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:48:01,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 16:48:01,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 16:48:01,346 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 16:48:01,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:48:01,521 INFO L93 Difference]: Finished difference Result 68 states and 87 transitions. [2023-12-16 16:48:01,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 16:48:01,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2023-12-16 16:48:01,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:48:01,525 INFO L225 Difference]: With dead ends: 68 [2023-12-16 16:48:01,525 INFO L226 Difference]: Without dead ends: 56 [2023-12-16 16:48:01,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-16 16:48:01,526 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 35 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:48:01,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 126 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:48:01,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-16 16:48:01,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2023-12-16 16:48:01,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 34 states have internal predecessors, (42), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-16 16:48:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2023-12-16 16:48:01,532 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 23 [2023-12-16 16:48:01,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:48:01,532 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2023-12-16 16:48:01,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 16:48:01,532 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2023-12-16 16:48:01,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-16 16:48:01,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:48:01,533 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:48:01,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 16:48:01,733 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 16:48:01,734 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:48:01,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:48:01,734 INFO L85 PathProgramCache]: Analyzing trace with hash 737203847, now seen corresponding path program 1 times [2023-12-16 16:48:01,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:48:01,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048737387] [2023-12-16 16:48:01,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:48:01,735 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 16:48:01,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:48:01,736 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 16:48:01,737 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 16:48:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:48:01,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 16:48:01,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:48:01,828 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 16:48:01,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:48:01,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:48:01,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048737387] [2023-12-16 16:48:01,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048737387] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:48:01,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:48:01,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 16:48:01,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85359443] [2023-12-16 16:48:01,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:48:01,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 16:48:01,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:48:01,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 16:48:01,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 16:48:01,830 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 16:48:01,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:48:01,925 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2023-12-16 16:48:01,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 16:48:01,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-12-16 16:48:01,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:48:01,926 INFO L225 Difference]: With dead ends: 54 [2023-12-16 16:48:01,926 INFO L226 Difference]: Without dead ends: 51 [2023-12-16 16:48:01,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 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 16:48:01,927 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:48:01,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 75 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:48:01,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-16 16:48:01,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2023-12-16 16:48:01,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-16 16:48:01,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2023-12-16 16:48:01,933 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 24 [2023-12-16 16:48:01,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:48:01,934 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2023-12-16 16:48:01,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 16:48:01,934 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2023-12-16 16:48:01,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-16 16:48:01,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:48:01,934 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:48:01,937 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 16:48:02,140 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 16:48:02,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:48:02,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:48:02,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1831455308, now seen corresponding path program 1 times [2023-12-16 16:48:02,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:48:02,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785908267] [2023-12-16 16:48:02,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:48:02,142 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 16:48:02,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:48:02,142 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 16:48:02,143 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 16:48:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:48:02,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 16:48:02,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:48:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 16:48:02,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:48:02,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:48:02,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785908267] [2023-12-16 16:48:02,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785908267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:48:02,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:48:02,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 16:48:02,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673275997] [2023-12-16 16:48:02,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:48:02,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 16:48:02,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:48:02,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 16:48:02,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 16:48:02,193 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 16:48:02,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:48:02,211 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2023-12-16 16:48:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 16:48:02,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-12-16 16:48:02,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:48:02,211 INFO L225 Difference]: With dead ends: 69 [2023-12-16 16:48:02,212 INFO L226 Difference]: Without dead ends: 44 [2023-12-16 16:48:02,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 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 16:48:02,212 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 16:48:02,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 16:48:02,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-16 16:48:02,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2023-12-16 16:48:02,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 35 states have internal predecessors, (43), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-16 16:48:02,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2023-12-16 16:48:02,218 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 30 [2023-12-16 16:48:02,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:48:02,218 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2023-12-16 16:48:02,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 16:48:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2023-12-16 16:48:02,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-16 16:48:02,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:48:02,219 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:48:02,221 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 16:48:02,421 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 16:48:02,422 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:48:02,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:48:02,422 INFO L85 PathProgramCache]: Analyzing trace with hash -736358239, now seen corresponding path program 1 times [2023-12-16 16:48:02,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:48:02,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969275239] [2023-12-16 16:48:02,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:48:02,422 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 16:48:02,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:48:02,423 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 16:48:02,424 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 16:48:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:48:02,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-16 16:48:02,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:48:03,091 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 16:48:03,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:48:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 16:48:05,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:48:05,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969275239] [2023-12-16 16:48:05,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969275239] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:48:05,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:48:05,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2023-12-16 16:48:05,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320512178] [2023-12-16 16:48:05,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:48:05,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-16 16:48:05,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:48:05,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-16 16:48:05,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2023-12-16 16:48:05,374 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand has 20 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 16 states have internal predecessors, (41), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-16 16:48:09,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:48:09,422 INFO L93 Difference]: Finished difference Result 106 states and 134 transitions. [2023-12-16 16:48:09,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 16:48:09,428 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 16 states have internal predecessors, (41), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 33 [2023-12-16 16:48:09,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:48:09,429 INFO L225 Difference]: With dead ends: 106 [2023-12-16 16:48:09,429 INFO L226 Difference]: Without dead ends: 83 [2023-12-16 16:48:09,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2023-12-16 16:48:09,430 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 127 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 16:48:09,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 241 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 16:48:09,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-16 16:48:09,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 69. [2023-12-16 16:48:09,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 56 states have internal predecessors, (65), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-16 16:48:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 82 transitions. [2023-12-16 16:48:09,443 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 82 transitions. Word has length 33 [2023-12-16 16:48:09,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:48:09,443 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 82 transitions. [2023-12-16 16:48:09,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 16 states have internal predecessors, (41), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-16 16:48:09,444 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 82 transitions. [2023-12-16 16:48:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 16:48:09,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:48:09,444 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:48:09,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 16:48:09,645 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 16:48:09,645 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:48:09,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:48:09,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1620601913, now seen corresponding path program 2 times [2023-12-16 16:48:09,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:48:09,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336144828] [2023-12-16 16:48:09,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 16:48:09,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:48:09,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:48:09,647 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 16:48:09,648 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 16:48:09,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 16:48:09,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 16:48:09,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 16:48:09,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:48:09,805 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 16:48:09,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:48:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 16:48:09,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:48:09,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336144828] [2023-12-16 16:48:09,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336144828] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:48:09,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:48:09,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2023-12-16 16:48:09,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061272750] [2023-12-16 16:48:09,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:48:09,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 16:48:09,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:48:09,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 16:48:09,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-16 16:48:09,936 INFO L87 Difference]: Start difference. First operand 69 states and 82 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2023-12-16 16:48:10,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:48:10,083 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2023-12-16 16:48:10,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 16:48:10,083 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 42 [2023-12-16 16:48:10,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:48:10,085 INFO L225 Difference]: With dead ends: 86 [2023-12-16 16:48:10,085 INFO L226 Difference]: Without dead ends: 65 [2023-12-16 16:48:10,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-16 16:48:10,086 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:48:10,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 156 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:48:10,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-12-16 16:48:10,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2023-12-16 16:48:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 50 states have (on average 1.2) internal successors, (60), 52 states have internal predecessors, (60), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-16 16:48:10,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2023-12-16 16:48:10,096 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 42 [2023-12-16 16:48:10,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:48:10,096 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2023-12-16 16:48:10,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2023-12-16 16:48:10,097 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2023-12-16 16:48:10,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-16 16:48:10,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:48:10,102 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:48:10,108 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 16:48:10,305 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 16:48:10,306 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:48:10,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:48:10,306 INFO L85 PathProgramCache]: Analyzing trace with hash -682361828, now seen corresponding path program 1 times [2023-12-16 16:48:10,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:48:10,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050257157] [2023-12-16 16:48:10,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:48:10,306 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 16:48:10,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:48:10,307 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 16:48:10,308 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 16:48:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:48:10,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 16:48:10,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:48:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 16:48:10,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:48:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 16:48:10,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:48:10,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050257157] [2023-12-16 16:48:10,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050257157] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:48:10,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:48:10,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 16:48:10,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403260601] [2023-12-16 16:48:10,512 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:48:10,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 16:48:10,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:48:10,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 16:48:10,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-16 16:48:10,513 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-16 16:48:11,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:48:11,108 INFO L93 Difference]: Finished difference Result 208 states and 253 transitions. [2023-12-16 16:48:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 16:48:11,113 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 41 [2023-12-16 16:48:11,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:48:11,114 INFO L225 Difference]: With dead ends: 208 [2023-12-16 16:48:11,114 INFO L226 Difference]: Without dead ends: 187 [2023-12-16 16:48:11,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2023-12-16 16:48:11,115 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 196 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 16:48:11,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 277 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 16:48:11,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-12-16 16:48:11,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 90. [2023-12-16 16:48:11,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 74 states have (on average 1.2162162162162162) internal successors, (90), 76 states have internal predecessors, (90), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-16 16:48:11,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2023-12-16 16:48:11,138 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 41 [2023-12-16 16:48:11,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:48:11,138 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2023-12-16 16:48:11,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-16 16:48:11,138 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2023-12-16 16:48:11,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 16:48:11,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:48:11,139 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:48:11,152 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 16:48:11,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:48:11,344 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:48:11,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:48:11,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1141376884, now seen corresponding path program 3 times [2023-12-16 16:48:11,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:48:11,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300219445] [2023-12-16 16:48:11,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 16:48:11,345 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 16:48:11,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:48:11,346 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:48:11,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 16:48:11,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-16 16:48:11,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 16:48:11,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 16:48:11,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:48:11,936 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 16:48:11,937 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:48:15,484 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 16:48:15,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:48:15,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300219445] [2023-12-16 16:48:15,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300219445] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:48:15,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:48:15,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-16 16:48:15,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448449764] [2023-12-16 16:48:15,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:48:15,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 16:48:15,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:48:15,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 16:48:15,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-12-16 16:48:15,486 INFO L87 Difference]: Start difference. First operand 90 states and 107 transitions. Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 14 states have internal predecessors, (40), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-16 16:48:16,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:48:16,817 INFO L93 Difference]: Finished difference Result 124 states and 153 transitions. [2023-12-16 16:48:16,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 16:48:16,817 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 14 states have internal predecessors, (40), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2023-12-16 16:48:16,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:48:16,818 INFO L225 Difference]: With dead ends: 124 [2023-12-16 16:48:16,818 INFO L226 Difference]: Without dead ends: 120 [2023-12-16 16:48:16,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2023-12-16 16:48:16,819 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 31 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 16:48:16,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 246 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 16:48:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-16 16:48:16,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 69. [2023-12-16 16:48:16,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 59 states have internal predecessors, (72), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 16:48:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 83 transitions. [2023-12-16 16:48:16,830 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 83 transitions. Word has length 42 [2023-12-16 16:48:16,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:48:16,830 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 83 transitions. [2023-12-16 16:48:16,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 14 states have internal predecessors, (40), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-16 16:48:16,830 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 83 transitions. [2023-12-16 16:48:16,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 16:48:16,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:48:16,831 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:48:16,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 16:48:17,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:48:17,034 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:48:17,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:48:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2080148684, now seen corresponding path program 4 times [2023-12-16 16:48:17,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:48:17,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507608646] [2023-12-16 16:48:17,035 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-16 16:48:17,035 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 16:48:17,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:48:17,036 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:48:17,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 16:48:18,517 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-16 16:48:18,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 16:48:18,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-16 16:48:18,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:48:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 16:48:22,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:48:53,439 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-16 16:48:57,863 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 16:48:57,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:48:57,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507608646] [2023-12-16 16:48:57,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507608646] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:48:57,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:48:57,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 24 [2023-12-16 16:48:57,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701546101] [2023-12-16 16:48:57,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:48:57,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 16:48:57,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:48:57,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 16:48:57,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=444, Unknown=2, NotChecked=0, Total=552 [2023-12-16 16:48:57,865 INFO L87 Difference]: Start difference. First operand 69 states and 83 transitions. Second operand has 24 states, 24 states have (on average 2.375) internal successors, (57), 22 states have internal predecessors, (57), 7 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-16 16:49:11,003 WARN L293 SmtUtils]: Spent 10.45s on a formula simplification. DAG size of input: 43 DAG size of output: 26 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-16 16:49:14,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] Received shutdown request... [2023-12-16 16:49:15,216 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 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 16:49:15,231 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 16:49:16,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 16:49:16,432 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 16:49:16,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=128, Invalid=572, Unknown=2, NotChecked=0, Total=702 [2023-12-16 16:49:16,441 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 19 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-16 16:49:16,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 324 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-16 16:49:16,442 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 16:49:16,442 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 16:49:16,445 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:49:16,447 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 16:49:16,450 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 16:49:16,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:49:16 BoogieIcfgContainer [2023-12-16 16:49:16,451 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 16:49:16,451 INFO L158 Benchmark]: Toolchain (without parser) took 78281.93ms. Allocated memory was 183.5MB in the beginning and 267.4MB in the end (delta: 83.9MB). Free memory was 146.2MB in the beginning and 166.6MB in the end (delta: -20.4MB). Peak memory consumption was 65.4MB. Max. memory is 8.0GB. [2023-12-16 16:49:16,451 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 183.5MB. Free memory is still 140.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 16:49:16,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.61ms. Allocated memory is still 183.5MB. Free memory was 146.2MB in the beginning and 134.6MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 16:49:16,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.46ms. Allocated memory is still 183.5MB. Free memory was 134.6MB in the beginning and 133.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 16:49:16,452 INFO L158 Benchmark]: Boogie Preprocessor took 23.25ms. Allocated memory is still 183.5MB. Free memory was 133.1MB in the beginning and 131.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 16:49:16,452 INFO L158 Benchmark]: RCFGBuilder took 270.22ms. Allocated memory is still 183.5MB. Free memory was 131.0MB in the beginning and 119.0MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 16:49:16,452 INFO L158 Benchmark]: TraceAbstraction took 77751.55ms. Allocated memory was 183.5MB in the beginning and 267.4MB in the end (delta: 83.9MB). Free memory was 118.4MB in the beginning and 166.6MB in the end (delta: -48.2MB). Peak memory consumption was 37.1MB. Max. memory is 8.0GB. [2023-12-16 16:49:16,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 183.5MB. Free memory is still 140.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 210.61ms. Allocated memory is still 183.5MB. Free memory was 146.2MB in the beginning and 134.6MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.46ms. Allocated memory is still 183.5MB. Free memory was 134.6MB in the beginning and 133.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.25ms. Allocated memory is still 183.5MB. Free memory was 133.1MB in the beginning and 131.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 270.22ms. Allocated memory is still 183.5MB. Free memory was 131.0MB in the beginning and 119.0MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 77751.55ms. Allocated memory was 183.5MB in the beginning and 267.4MB in the end (delta: 83.9MB). Free memory was 118.4MB in the beginning and 166.6MB in the end (delta: -48.2MB). Peak memory consumption was 37.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 77.7s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 25.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 463 SdHoareTripleChecker+Valid, 9.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 453 mSDsluCounter, 1689 SdHoareTripleChecker+Invalid, 8.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1405 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 921 IncrementalHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 284 mSDtfsCounter, 921 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 609 GetRequests, 472 SyntacticMatches, 1 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 37.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=9, InterpolantAutomatonStates: 91, 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, 10 MinimizatonAttempts, 186 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 47.7s InterpolantComputationTime, 339 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 568 ConstructedInterpolants, 53 QuantifiedInterpolants, 4320 SizeOfPredicates, 22 NumberOfNonLiveVariables, 626 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 196/332 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