/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/combinations/pals_lcr.3.1.ufo.BOUNDED-6.pals+Problem12_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:47:57,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:47:57,848 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 07:47:57,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:47:57,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:47:57,875 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:47:57,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:47:57,876 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:47:57,877 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:47:57,877 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:47:57,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:47:57,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:47:57,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:47:57,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:47:57,883 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:47:57,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:47:57,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:47:57,884 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:47:57,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:47:57,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:47:57,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:47:57,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:47:57,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:47:57,885 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:47:57,886 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:47:57,886 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:47:57,886 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:47:57,886 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:47:57,886 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:47:57,886 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:47:57,887 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:47:57,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:47:57,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:47:57,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:47:57,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:47:57,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:47:57,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:47:57,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:47:57,888 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:47:57,888 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:47:57,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:47:57,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:47:57,889 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:47:57,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:47:57,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:47:57,889 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:47:57,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:47:58,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:47:58,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:47:58,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:47:58,106 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:47:58,107 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:47:58,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.3.1.ufo.BOUNDED-6.pals+Problem12_label02.c [2023-12-16 07:47:59,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:47:59,580 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:47:59,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3.1.ufo.BOUNDED-6.pals+Problem12_label02.c [2023-12-16 07:47:59,607 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197fc4596/59747e5dec234e82bb768b4c2608261c/FLAGd656717e1 [2023-12-16 07:47:59,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197fc4596/59747e5dec234e82bb768b4c2608261c [2023-12-16 07:47:59,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:47:59,630 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:47:59,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:47:59,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:47:59,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:47:59,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:47:59" (1/1) ... [2023-12-16 07:47:59,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce5a675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:47:59, skipping insertion in model container [2023-12-16 07:47:59,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:47:59" (1/1) ... [2023-12-16 07:47:59,742 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:48:00,000 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3.1.ufo.BOUNDED-6.pals+Problem12_label02.c[6391,6404] [2023-12-16 07:48:00,067 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3.1.ufo.BOUNDED-6.pals+Problem12_label02.c[13681,13694] [2023-12-16 07:48:00,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:48:00,627 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:48:00,659 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3.1.ufo.BOUNDED-6.pals+Problem12_label02.c[6391,6404] [2023-12-16 07:48:00,674 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3.1.ufo.BOUNDED-6.pals+Problem12_label02.c[13681,13694] [2023-12-16 07:48:01,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:48:01,068 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:48:01,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01 WrapperNode [2023-12-16 07:48:01,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:48:01,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:48:01,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:48:01,070 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:48:01,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,237 INFO L138 Inliner]: procedures = 34, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 4962 [2023-12-16 07:48:01,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:48:01,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:48:01,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:48:01,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:48:01,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,271 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,338 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 07:48:01,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,550 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:48:01,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:48:01,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:48:01,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:48:01,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (1/1) ... [2023-12-16 07:48:01,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:48:01,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:48:01,626 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 07:48:01,632 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 07:48:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:48:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:48:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:48:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:48:01,730 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:48:01,732 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:48:25,123 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:48:25,166 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:48:25,166 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 07:48:25,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:48:25 BoogieIcfgContainer [2023-12-16 07:48:25,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:48:25,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:48:25,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:48:25,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:48:25,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:47:59" (1/3) ... [2023-12-16 07:48:25,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3f75c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:48:25, skipping insertion in model container [2023-12-16 07:48:25,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:48:01" (2/3) ... [2023-12-16 07:48:25,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3f75c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:48:25, skipping insertion in model container [2023-12-16 07:48:25,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:48:25" (3/3) ... [2023-12-16 07:48:25,172 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals+Problem12_label02.c [2023-12-16 07:48:25,182 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:48:25,182 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:48:25,240 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:48:25,245 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;@372f9cf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:48:25,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:48:25,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 807 states, 804 states have (on average 1.9800995024875623) internal successors, (1592), 806 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:25,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 07:48:25,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:25,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:25,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:25,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:25,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1100216757, now seen corresponding path program 1 times [2023-12-16 07:48:25,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:25,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383406538] [2023-12-16 07:48:25,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:25,278 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 07:48:25,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:25,283 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 07:48:25,286 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 07:48:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:25,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 07:48:25,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:25,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:25,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:25,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:25,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383406538] [2023-12-16 07:48:25,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383406538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:25,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:25,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:48:25,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608440645] [2023-12-16 07:48:25,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:25,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 07:48:25,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:25,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 07:48:25,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 07:48:25,405 INFO L87 Difference]: Start difference. First operand has 807 states, 804 states have (on average 1.9800995024875623) internal successors, (1592), 806 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:25,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:25,478 INFO L93 Difference]: Finished difference Result 1594 states and 3146 transitions. [2023-12-16 07:48:25,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 07:48:25,483 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-12-16 07:48:25,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:25,495 INFO L225 Difference]: With dead ends: 1594 [2023-12-16 07:48:25,495 INFO L226 Difference]: Without dead ends: 803 [2023-12-16 07:48:25,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 07:48:25,501 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:25,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1521 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:48:25,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-12-16 07:48:25,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2023-12-16 07:48:25,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 801 states have (on average 1.898876404494382) internal successors, (1521), 802 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:25,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1521 transitions. [2023-12-16 07:48:25,564 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1521 transitions. Word has length 17 [2023-12-16 07:48:25,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:25,564 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1521 transitions. [2023-12-16 07:48:25,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:25,565 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1521 transitions. [2023-12-16 07:48:25,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 07:48:25,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:25,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:25,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 07:48:25,771 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 07:48:25,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:25,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:25,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1687022771, now seen corresponding path program 1 times [2023-12-16 07:48:25,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:25,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820522992] [2023-12-16 07:48:25,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:25,773 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 07:48:25,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:25,774 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 07:48:25,776 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 07:48:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:25,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:48:25,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:25,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:25,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:25,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:25,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820522992] [2023-12-16 07:48:25,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820522992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:25,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:25,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:48:25,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72486431] [2023-12-16 07:48:25,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:25,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:48:25,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:25,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:48:25,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:48:25,885 INFO L87 Difference]: Start difference. First operand 803 states and 1521 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:25,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:25,964 INFO L93 Difference]: Finished difference Result 864 states and 1616 transitions. [2023-12-16 07:48:25,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:48:25,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-12-16 07:48:25,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:25,968 INFO L225 Difference]: With dead ends: 864 [2023-12-16 07:48:25,968 INFO L226 Difference]: Without dead ends: 832 [2023-12-16 07:48:25,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 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 07:48:25,969 INFO L413 NwaCegarLoop]: 1516 mSDtfsCounter, 45 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 4527 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:25,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 4527 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:48:25,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2023-12-16 07:48:25,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 803. [2023-12-16 07:48:25,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 801 states have (on average 1.8789013732833957) internal successors, (1505), 802 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:25,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1505 transitions. [2023-12-16 07:48:25,984 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1505 transitions. Word has length 17 [2023-12-16 07:48:25,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:25,984 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1505 transitions. [2023-12-16 07:48:25,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:25,984 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1505 transitions. [2023-12-16 07:48:25,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-16 07:48:25,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:25,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:25,992 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 07:48:26,187 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 07:48:26,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:26,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:26,188 INFO L85 PathProgramCache]: Analyzing trace with hash 613121839, now seen corresponding path program 1 times [2023-12-16 07:48:26,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:26,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482894846] [2023-12-16 07:48:26,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:26,189 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 07:48:26,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:26,190 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 07:48:26,204 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 07:48:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:26,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:48:26,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:26,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:26,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:26,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:26,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482894846] [2023-12-16 07:48:26,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482894846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:26,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:26,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 07:48:26,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051965770] [2023-12-16 07:48:26,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:26,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:48:26,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:26,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:48:26,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:48:26,484 INFO L87 Difference]: Start difference. First operand 803 states and 1505 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:26,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:26,585 INFO L93 Difference]: Finished difference Result 919 states and 1689 transitions. [2023-12-16 07:48:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:48:26,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-12-16 07:48:26,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:26,589 INFO L225 Difference]: With dead ends: 919 [2023-12-16 07:48:26,589 INFO L226 Difference]: Without dead ends: 890 [2023-12-16 07:48:26,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:48:26,593 INFO L413 NwaCegarLoop]: 1499 mSDtfsCounter, 3033 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3033 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:26,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3033 Valid, 1656 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:48:26,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-16 07:48:26,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 857. [2023-12-16 07:48:26,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 855 states have (on average 1.8619883040935672) internal successors, (1592), 856 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:26,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1592 transitions. [2023-12-16 07:48:26,608 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1592 transitions. Word has length 32 [2023-12-16 07:48:26,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:26,608 INFO L495 AbstractCegarLoop]: Abstraction has 857 states and 1592 transitions. [2023-12-16 07:48:26,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:26,609 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1592 transitions. [2023-12-16 07:48:26,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-16 07:48:26,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:26,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:26,618 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 07:48:26,815 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 07:48:26,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:26,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:26,817 INFO L85 PathProgramCache]: Analyzing trace with hash 675954815, now seen corresponding path program 1 times [2023-12-16 07:48:26,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:26,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842723279] [2023-12-16 07:48:26,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:26,817 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 07:48:26,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:26,818 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 07:48:26,829 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 07:48:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:26,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:48:26,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:26,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:26,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:26,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842723279] [2023-12-16 07:48:26,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842723279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:26,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:26,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:48:26,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443673865] [2023-12-16 07:48:26,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:26,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:48:26,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:26,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:48:26,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:48:26,923 INFO L87 Difference]: Start difference. First operand 857 states and 1592 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:26,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:26,953 INFO L93 Difference]: Finished difference Result 1007 states and 1830 transitions. [2023-12-16 07:48:26,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:48:26,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-12-16 07:48:26,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:26,957 INFO L225 Difference]: With dead ends: 1007 [2023-12-16 07:48:26,957 INFO L226 Difference]: Without dead ends: 924 [2023-12-16 07:48:26,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 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 07:48:26,958 INFO L413 NwaCegarLoop]: 1501 mSDtfsCounter, 1464 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:26,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 1541 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:48:26,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2023-12-16 07:48:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 922. [2023-12-16 07:48:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 920 states have (on average 1.8380434782608697) internal successors, (1691), 921 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:26,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1691 transitions. [2023-12-16 07:48:26,972 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1691 transitions. Word has length 34 [2023-12-16 07:48:26,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:26,973 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1691 transitions. [2023-12-16 07:48:26,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:26,973 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1691 transitions. [2023-12-16 07:48:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-16 07:48:26,973 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:26,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:26,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 07:48:27,176 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 07:48:27,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:27,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:27,177 INFO L85 PathProgramCache]: Analyzing trace with hash -582127364, now seen corresponding path program 1 times [2023-12-16 07:48:27,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:27,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396872079] [2023-12-16 07:48:27,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:27,178 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 07:48:27,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:27,178 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 07:48:27,190 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 07:48:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:27,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:48:27,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:27,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:27,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:27,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:27,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396872079] [2023-12-16 07:48:27,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396872079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:27,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:27,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:48:27,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133495991] [2023-12-16 07:48:27,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:27,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:48:27,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:27,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:48:27,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:48:27,244 INFO L87 Difference]: Start difference. First operand 922 states and 1691 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:27,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:27,283 INFO L93 Difference]: Finished difference Result 936 states and 1708 transitions. [2023-12-16 07:48:27,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:48:27,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-12-16 07:48:27,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:27,287 INFO L225 Difference]: With dead ends: 936 [2023-12-16 07:48:27,287 INFO L226 Difference]: Without dead ends: 934 [2023-12-16 07:48:27,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 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 07:48:27,288 INFO L413 NwaCegarLoop]: 1501 mSDtfsCounter, 1 mSDsluCounter, 2994 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:27,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4495 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:48:27,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-12-16 07:48:27,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2023-12-16 07:48:27,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 928 states have (on average 1.8297413793103448) internal successors, (1698), 929 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:27,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1698 transitions. [2023-12-16 07:48:27,305 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1698 transitions. Word has length 35 [2023-12-16 07:48:27,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:27,306 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1698 transitions. [2023-12-16 07:48:27,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:27,308 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1698 transitions. [2023-12-16 07:48:27,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-16 07:48:27,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:27,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:27,328 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 07:48:27,512 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 07:48:27,513 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:27,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:27,513 INFO L85 PathProgramCache]: Analyzing trace with hash 2127458807, now seen corresponding path program 1 times [2023-12-16 07:48:27,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:27,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309860290] [2023-12-16 07:48:27,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:27,513 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 07:48:27,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:27,514 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 07:48:27,524 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 07:48:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:27,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:48:27,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:27,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:27,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:27,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309860290] [2023-12-16 07:48:27,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309860290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:27,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:27,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:48:27,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421297626] [2023-12-16 07:48:27,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:27,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:48:27,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:27,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:48:27,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:48:27,609 INFO L87 Difference]: Start difference. First operand 930 states and 1698 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:27,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:27,637 INFO L93 Difference]: Finished difference Result 1098 states and 1958 transitions. [2023-12-16 07:48:27,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:48:27,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2023-12-16 07:48:27,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:27,642 INFO L225 Difference]: With dead ends: 1098 [2023-12-16 07:48:27,642 INFO L226 Difference]: Without dead ends: 1009 [2023-12-16 07:48:27,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 07:48:27,645 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 1474 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:27,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1578 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:48:27,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2023-12-16 07:48:27,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 1007. [2023-12-16 07:48:27,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 1005 states have (on average 1.8049751243781094) internal successors, (1814), 1006 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:27,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1814 transitions. [2023-12-16 07:48:27,659 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1814 transitions. Word has length 36 [2023-12-16 07:48:27,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:27,659 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1814 transitions. [2023-12-16 07:48:27,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:27,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1814 transitions. [2023-12-16 07:48:27,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-16 07:48:27,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:27,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:27,674 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 07:48:27,864 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 07:48:27,865 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:27,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:27,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1501802743, now seen corresponding path program 1 times [2023-12-16 07:48:27,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:27,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365200177] [2023-12-16 07:48:27,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:27,866 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 07:48:27,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:27,868 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 07:48:27,868 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 07:48:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:27,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:48:27,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:27,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:27,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:27,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365200177] [2023-12-16 07:48:27,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365200177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:27,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:27,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:48:27,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105219605] [2023-12-16 07:48:27,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:27,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:48:27,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:27,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:48:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:48:27,942 INFO L87 Difference]: Start difference. First operand 1007 states and 1814 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:27,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:27,973 INFO L93 Difference]: Finished difference Result 1433 states and 2457 transitions. [2023-12-16 07:48:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:48:27,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2023-12-16 07:48:27,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:27,977 INFO L225 Difference]: With dead ends: 1433 [2023-12-16 07:48:27,977 INFO L226 Difference]: Without dead ends: 1202 [2023-12-16 07:48:27,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 07:48:27,978 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 1472 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:27,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 1584 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:48:27,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2023-12-16 07:48:27,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1200. [2023-12-16 07:48:27,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 1198 states have (on average 1.7479131886477461) internal successors, (2094), 1199 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 2094 transitions. [2023-12-16 07:48:27,994 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 2094 transitions. Word has length 36 [2023-12-16 07:48:27,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:27,994 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 2094 transitions. [2023-12-16 07:48:27,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:27,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 2094 transitions. [2023-12-16 07:48:27,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-16 07:48:27,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:27,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:28,000 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 (8)] Forceful destruction successful, exit code 0 [2023-12-16 07:48:28,204 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 07:48:28,205 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:28,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:28,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1904431113, now seen corresponding path program 1 times [2023-12-16 07:48:28,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:28,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644602617] [2023-12-16 07:48:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:28,206 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 07:48:28,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:28,207 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 07:48:28,208 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 07:48:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:28,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:48:28,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:28,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:28,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:28,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:28,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644602617] [2023-12-16 07:48:28,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644602617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:28,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:28,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:48:28,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847856556] [2023-12-16 07:48:28,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:28,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:48:28,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:28,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:48:28,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:48:28,279 INFO L87 Difference]: Start difference. First operand 1200 states and 2094 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:28,311 INFO L93 Difference]: Finished difference Result 1976 states and 3234 transitions. [2023-12-16 07:48:28,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:48:28,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2023-12-16 07:48:28,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:28,316 INFO L225 Difference]: With dead ends: 1976 [2023-12-16 07:48:28,316 INFO L226 Difference]: Without dead ends: 1552 [2023-12-16 07:48:28,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 07:48:28,317 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 1470 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:28,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 1586 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:48:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2023-12-16 07:48:28,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1550. [2023-12-16 07:48:28,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1548 states have (on average 1.6679586563307494) internal successors, (2582), 1549 states have internal predecessors, (2582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2582 transitions. [2023-12-16 07:48:28,341 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2582 transitions. Word has length 36 [2023-12-16 07:48:28,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:28,341 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 2582 transitions. [2023-12-16 07:48:28,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2582 transitions. [2023-12-16 07:48:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 07:48:28,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:28,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:28,347 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 07:48:28,545 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 07:48:28,546 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:28,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:28,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1853448570, now seen corresponding path program 1 times [2023-12-16 07:48:28,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:28,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079193365] [2023-12-16 07:48:28,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:28,546 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 07:48:28,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:28,548 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 07:48:28,574 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 07:48:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:28,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 07:48:28,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:29,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:48:29,428 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:29,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:29,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079193365] [2023-12-16 07:48:29,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079193365] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:48:29,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:48:29,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 07:48:29,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017813469] [2023-12-16 07:48:29,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:48:29,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 07:48:29,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:29,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 07:48:29,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 07:48:29,430 INFO L87 Difference]: Start difference. First operand 1550 states and 2582 transitions. Second operand has 16 states, 16 states have (on average 5.625) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:30,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:30,994 INFO L93 Difference]: Finished difference Result 3268 states and 5027 transitions. [2023-12-16 07:48:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 07:48:30,996 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.625) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-16 07:48:30,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:31,003 INFO L225 Difference]: With dead ends: 3268 [2023-12-16 07:48:31,003 INFO L226 Difference]: Without dead ends: 2714 [2023-12-16 07:48:31,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-16 07:48:31,005 INFO L413 NwaCegarLoop]: 1500 mSDtfsCounter, 3325 mSDsluCounter, 13527 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 15027 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:31,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3325 Valid, 15027 Invalid, 641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 07:48:31,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2023-12-16 07:48:31,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2322. [2023-12-16 07:48:31,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2322 states, 2320 states have (on average 1.5905172413793103) internal successors, (3690), 2321 states have internal predecessors, (3690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 3690 transitions. [2023-12-16 07:48:31,060 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 3690 transitions. Word has length 50 [2023-12-16 07:48:31,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:31,061 INFO L495 AbstractCegarLoop]: Abstraction has 2322 states and 3690 transitions. [2023-12-16 07:48:31,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.625) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:31,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 3690 transitions. [2023-12-16 07:48:31,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 07:48:31,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:31,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:31,067 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 07:48:31,268 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 07:48:31,268 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:31,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:31,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1815862662, now seen corresponding path program 1 times [2023-12-16 07:48:31,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:31,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796893878] [2023-12-16 07:48:31,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:31,269 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 07:48:31,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:31,270 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 07:48:31,273 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 07:48:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:31,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:48:31,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:31,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:31,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:31,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796893878] [2023-12-16 07:48:31,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796893878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:31,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:31,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:48:31,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056786438] [2023-12-16 07:48:31,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:31,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:48:31,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:31,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:48:31,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:48:31,367 INFO L87 Difference]: Start difference. First operand 2322 states and 3690 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:31,410 INFO L93 Difference]: Finished difference Result 3444 states and 5327 transitions. [2023-12-16 07:48:31,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:48:31,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-16 07:48:31,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:31,415 INFO L225 Difference]: With dead ends: 3444 [2023-12-16 07:48:31,416 INFO L226 Difference]: Without dead ends: 1898 [2023-12-16 07:48:31,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 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 07:48:31,418 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 31 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3017 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 07:48:31,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3017 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:48:31,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2023-12-16 07:48:31,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1891. [2023-12-16 07:48:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1889 states have (on average 1.6236103758602436) internal successors, (3067), 1890 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:31,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 3067 transitions. [2023-12-16 07:48:31,458 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 3067 transitions. Word has length 50 [2023-12-16 07:48:31,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:31,458 INFO L495 AbstractCegarLoop]: Abstraction has 1891 states and 3067 transitions. [2023-12-16 07:48:31,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:31,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 3067 transitions. [2023-12-16 07:48:31,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 07:48:31,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:31,459 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:31,466 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 07:48:31,662 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 07:48:31,662 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:31,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1762784666, now seen corresponding path program 1 times [2023-12-16 07:48:31,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:31,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442537928] [2023-12-16 07:48:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:31,663 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 07:48:31,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:31,664 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 07:48:31,688 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 07:48:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:31,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:48:31,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:31,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:31,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:31,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:31,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442537928] [2023-12-16 07:48:31,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442537928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:31,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:31,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:48:31,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506590766] [2023-12-16 07:48:31,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:31,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:48:31,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:31,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:48:31,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:48:31,755 INFO L87 Difference]: Start difference. First operand 1891 states and 3067 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:31,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:31,800 INFO L93 Difference]: Finished difference Result 2447 states and 3867 transitions. [2023-12-16 07:48:31,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:48:31,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-16 07:48:31,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:31,805 INFO L225 Difference]: With dead ends: 2447 [2023-12-16 07:48:31,806 INFO L226 Difference]: Without dead ends: 1341 [2023-12-16 07:48:31,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 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 07:48:31,808 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 27 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3002 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 07:48:31,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3002 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:48:31,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2023-12-16 07:48:31,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1339. [2023-12-16 07:48:31,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1337 states have (on average 1.68810770381451) internal successors, (2257), 1338 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 2257 transitions. [2023-12-16 07:48:31,832 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 2257 transitions. Word has length 52 [2023-12-16 07:48:31,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:31,834 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 2257 transitions. [2023-12-16 07:48:31,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:31,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 2257 transitions. [2023-12-16 07:48:31,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 07:48:31,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:31,834 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:31,839 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 07:48:32,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:48:32,037 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:32,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:32,038 INFO L85 PathProgramCache]: Analyzing trace with hash 857932558, now seen corresponding path program 1 times [2023-12-16 07:48:32,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:32,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610292311] [2023-12-16 07:48:32,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:32,038 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 07:48:32,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:32,040 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:48:32,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 07:48:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:32,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 07:48:32,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:32,628 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:32,628 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:48:32,886 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:32,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:32,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610292311] [2023-12-16 07:48:32,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610292311] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:48:32,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:48:32,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 07:48:32,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315880446] [2023-12-16 07:48:32,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:48:32,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 07:48:32,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:32,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 07:48:32,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 07:48:32,888 INFO L87 Difference]: Start difference. First operand 1339 states and 2257 transitions. Second operand has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:33,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:33,561 INFO L93 Difference]: Finished difference Result 1933 states and 3088 transitions. [2023-12-16 07:48:33,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 07:48:33,562 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-16 07:48:33,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:33,566 INFO L225 Difference]: With dead ends: 1933 [2023-12-16 07:48:33,566 INFO L226 Difference]: Without dead ends: 1379 [2023-12-16 07:48:33,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-12-16 07:48:33,567 INFO L413 NwaCegarLoop]: 1474 mSDtfsCounter, 4481 mSDsluCounter, 11786 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4481 SdHoareTripleChecker+Valid, 13260 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:33,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4481 Valid, 13260 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:48:33,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2023-12-16 07:48:33,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1353. [2023-12-16 07:48:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 1351 states have (on average 1.682457438934123) internal successors, (2273), 1352 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 2273 transitions. [2023-12-16 07:48:33,596 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 2273 transitions. Word has length 53 [2023-12-16 07:48:33,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:33,596 INFO L495 AbstractCegarLoop]: Abstraction has 1353 states and 2273 transitions. [2023-12-16 07:48:33,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:33,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 2273 transitions. [2023-12-16 07:48:33,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 07:48:33,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:33,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:33,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 07:48:33,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:48:33,800 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:33,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:33,800 INFO L85 PathProgramCache]: Analyzing trace with hash -443153606, now seen corresponding path program 1 times [2023-12-16 07:48:33,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:33,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671036646] [2023-12-16 07:48:33,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:33,801 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 07:48:33,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:33,802 INFO L229 MonitoredProcess]: Starting monitored process 14 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 07:48:33,830 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 (14)] Waiting until timeout for monitored process [2023-12-16 07:48:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:33,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:48:33,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:33,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:33,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:33,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:33,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671036646] [2023-12-16 07:48:33,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671036646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:33,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:33,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:48:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772095959] [2023-12-16 07:48:33,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:33,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:48:33,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:48:33,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:48:33,892 INFO L87 Difference]: Start difference. First operand 1353 states and 2273 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:33,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:33,925 INFO L93 Difference]: Finished difference Result 1633 states and 2665 transitions. [2023-12-16 07:48:33,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:48:33,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-16 07:48:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:33,928 INFO L225 Difference]: With dead ends: 1633 [2023-12-16 07:48:33,928 INFO L226 Difference]: Without dead ends: 1079 [2023-12-16 07:48:33,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 07:48:33,930 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 23 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2987 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 07:48:33,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2987 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:48:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2023-12-16 07:48:33,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1077. [2023-12-16 07:48:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1075 states have (on average 1.7404651162790699) internal successors, (1871), 1076 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:33,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1871 transitions. [2023-12-16 07:48:33,952 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1871 transitions. Word has length 55 [2023-12-16 07:48:33,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:33,952 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 1871 transitions. [2023-12-16 07:48:33,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:33,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1871 transitions. [2023-12-16 07:48:33,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 07:48:33,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:33,953 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:33,958 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 (14)] Forceful destruction successful, exit code 0 [2023-12-16 07:48:34,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 07:48:34,157 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:34,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:34,158 INFO L85 PathProgramCache]: Analyzing trace with hash -294444102, now seen corresponding path program 1 times [2023-12-16 07:48:34,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:34,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399393408] [2023-12-16 07:48:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:34,158 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 07:48:34,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:34,159 INFO L229 MonitoredProcess]: Starting monitored process 15 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 07:48:34,160 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 (15)] Waiting until timeout for monitored process [2023-12-16 07:48:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:34,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 07:48:34,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:34,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:48:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:35,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:35,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399393408] [2023-12-16 07:48:35,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399393408] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:48:35,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:48:35,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 07:48:35,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675071472] [2023-12-16 07:48:35,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:48:35,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 07:48:35,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:35,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 07:48:35,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 07:48:35,030 INFO L87 Difference]: Start difference. First operand 1077 states and 1871 transitions. Second operand has 16 states, 16 states have (on average 6.625) internal successors, (106), 16 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:35,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:35,906 INFO L93 Difference]: Finished difference Result 1627 states and 2614 transitions. [2023-12-16 07:48:35,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 07:48:35,907 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.625) internal successors, (106), 16 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-12-16 07:48:35,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:35,910 INFO L225 Difference]: With dead ends: 1627 [2023-12-16 07:48:35,910 INFO L226 Difference]: Without dead ends: 1349 [2023-12-16 07:48:35,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-16 07:48:35,912 INFO L413 NwaCegarLoop]: 1509 mSDtfsCounter, 6215 mSDsluCounter, 10471 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6215 SdHoareTripleChecker+Valid, 11980 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:35,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6215 Valid, 11980 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:48:35,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2023-12-16 07:48:35,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1285. [2023-12-16 07:48:35,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1283 states have (on average 1.6703039750584567) internal successors, (2143), 1284 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 2143 transitions. [2023-12-16 07:48:35,940 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 2143 transitions. Word has length 56 [2023-12-16 07:48:35,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:35,940 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 2143 transitions. [2023-12-16 07:48:35,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.625) internal successors, (106), 16 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:35,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 2143 transitions. [2023-12-16 07:48:35,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 07:48:35,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:35,941 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:35,954 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 (15)] Ended with exit code 0 [2023-12-16 07:48:36,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 07:48:36,144 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:36,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash -402890190, now seen corresponding path program 1 times [2023-12-16 07:48:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:36,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069831751] [2023-12-16 07:48:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:36,145 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 07:48:36,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:36,146 INFO L229 MonitoredProcess]: Starting monitored process 16 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 07:48:36,175 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 (16)] Waiting until timeout for monitored process [2023-12-16 07:48:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:36,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 07:48:36,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:36,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 07:48:36,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:48:36,372 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 07:48:36,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:36,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069831751] [2023-12-16 07:48:36,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069831751] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:48:36,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:48:36,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 07:48:36,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585362764] [2023-12-16 07:48:36,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:48:36,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 07:48:36,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:36,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 07:48:36,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:48:36,374 INFO L87 Difference]: Start difference. First operand 1285 states and 2143 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:36,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:48:36,459 INFO L93 Difference]: Finished difference Result 2233 states and 3384 transitions. [2023-12-16 07:48:36,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:48:36,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-12-16 07:48:36,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:48:36,464 INFO L225 Difference]: With dead ends: 2233 [2023-12-16 07:48:36,464 INFO L226 Difference]: Without dead ends: 1747 [2023-12-16 07:48:36,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:48:36,466 INFO L413 NwaCegarLoop]: 1510 mSDtfsCounter, 1486 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:48:36,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 3094 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:48:36,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2023-12-16 07:48:36,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1691. [2023-12-16 07:48:36,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1689 states have (on average 1.5476613380698638) internal successors, (2614), 1690 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:36,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2614 transitions. [2023-12-16 07:48:36,502 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2614 transitions. Word has length 58 [2023-12-16 07:48:36,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:48:36,503 INFO L495 AbstractCegarLoop]: Abstraction has 1691 states and 2614 transitions. [2023-12-16 07:48:36,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:48:36,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2614 transitions. [2023-12-16 07:48:36,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 07:48:36,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:48:36,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:48:36,508 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 (16)] Ended with exit code 0 [2023-12-16 07:48:36,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 07:48:36,706 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:48:36,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:48:36,707 INFO L85 PathProgramCache]: Analyzing trace with hash -56380255, now seen corresponding path program 1 times [2023-12-16 07:48:36,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:48:36,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077231969] [2023-12-16 07:48:36,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:48:36,707 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 07:48:36,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:48:36,709 INFO L229 MonitoredProcess]: Starting monitored process 17 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 07:48:36,742 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 (17)] Waiting until timeout for monitored process [2023-12-16 07:48:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:48:36,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:48:36,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:48:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:48:36,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:48:36,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:48:36,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077231969] [2023-12-16 07:48:36,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077231969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:48:36,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:48:36,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:48:36,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620188242] [2023-12-16 07:48:36,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:48:36,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:48:36,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:48:36,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:48:36,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:48:36,857 INFO L87 Difference]: Start difference. First operand 1691 states and 2614 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 07:49:09,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:49:09,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 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 07:49:09,267 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 774 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:49:09,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 534 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 32.3s Time] [2023-12-16 07:49:09,268 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:49:09,273 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 (17)] Forceful destruction successful, exit code 0 [2023-12-16 07:49:09,291 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 07:49:09,291 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 (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:49:09,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 07:49:09,469 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1691states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (2985 states constructed, input type IntersectNwa). [2023-12-16 07:49:09,470 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:49:09,473 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:49:09,474 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:49:09,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:49:09 BoogieIcfgContainer [2023-12-16 07:49:09,476 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:49:09,476 INFO L158 Benchmark]: Toolchain (without parser) took 69846.76ms. Allocated memory was 256.9MB in the beginning and 566.2MB in the end (delta: 309.3MB). Free memory was 192.7MB in the beginning and 185.5MB in the end (delta: 7.3MB). Peak memory consumption was 317.1MB. Max. memory is 8.0GB. [2023-12-16 07:49:09,476 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 200.3MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:49:09,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1437.00ms. Allocated memory is still 256.9MB. Free memory was 192.7MB in the beginning and 176.5MB in the end (delta: 16.3MB). Peak memory consumption was 115.9MB. Max. memory is 8.0GB. [2023-12-16 07:49:09,477 INFO L158 Benchmark]: Boogie Procedure Inliner took 167.52ms. Allocated memory is still 256.9MB. Free memory was 176.5MB in the beginning and 141.3MB in the end (delta: 35.1MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-12-16 07:49:09,477 INFO L158 Benchmark]: Boogie Preprocessor took 354.46ms. Allocated memory was 256.9MB in the beginning and 418.4MB in the end (delta: 161.5MB). Free memory was 141.3MB in the beginning and 330.1MB in the end (delta: -188.7MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-16 07:49:09,477 INFO L158 Benchmark]: RCFGBuilder took 23573.59ms. Allocated memory was 418.4MB in the beginning and 566.2MB in the end (delta: 147.8MB). Free memory was 330.1MB in the beginning and 317.4MB in the end (delta: 12.7MB). Peak memory consumption was 180.5MB. Max. memory is 8.0GB. [2023-12-16 07:49:09,477 INFO L158 Benchmark]: TraceAbstraction took 44307.73ms. Allocated memory is still 566.2MB. Free memory was 316.3MB in the beginning and 185.5MB in the end (delta: 130.8MB). Peak memory consumption was 130.8MB. Max. memory is 8.0GB. [2023-12-16 07:49:09,478 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 200.3MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1437.00ms. Allocated memory is still 256.9MB. Free memory was 192.7MB in the beginning and 176.5MB in the end (delta: 16.3MB). Peak memory consumption was 115.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 167.52ms. Allocated memory is still 256.9MB. Free memory was 176.5MB in the beginning and 141.3MB in the end (delta: 35.1MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 354.46ms. Allocated memory was 256.9MB in the beginning and 418.4MB in the end (delta: 161.5MB). Free memory was 141.3MB in the beginning and 330.1MB in the end (delta: -188.7MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * RCFGBuilder took 23573.59ms. Allocated memory was 418.4MB in the beginning and 566.2MB in the end (delta: 147.8MB). Free memory was 330.1MB in the beginning and 317.4MB in the end (delta: 12.7MB). Peak memory consumption was 180.5MB. Max. memory is 8.0GB. * TraceAbstraction took 44307.73ms. Allocated memory is still 566.2MB. Free memory was 316.3MB in the beginning and 185.5MB in the end (delta: 130.8MB). Peak memory consumption was 130.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 496]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 496). Cancelled while NwaCegarLoop was constructing difference of abstraction (1691states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (2985 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 292]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 292). Cancelled while NwaCegarLoop was constructing difference of abstraction (1691states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (2985 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 807 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 44.3s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 36.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25321 SdHoareTripleChecker+Valid, 34.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25321 mSDsluCounter, 71389 SdHoareTripleChecker+Invalid, 28.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48175 mSDsCounter, 698 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3593 IncrementalHoareTripleChecker+Invalid, 4291 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 698 mSolverCounterUnsat, 23214 mSDtfsCounter, 3593 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 910 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2322occurred in iteration=9, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 623 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 679 NumberOfCodeBlocks, 679 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 876 ConstructedInterpolants, 105 QuantifiedInterpolants, 5325 SizeOfPredicates, 30 NumberOfNonLiveVariables, 1933 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 20 InterpolantComputations, 12 PerfectInterpolantSequences, 80/118 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