/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/recursive/Ackermann01-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:42:59,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:42:59,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:42:59,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:42:59,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:42:59,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:42:59,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:42:59,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:42:59,355 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:42:59,358 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:42:59,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:42:59,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:42:59,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:42:59,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:42:59,360 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:42:59,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:42:59,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:42:59,361 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:42:59,361 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:42:59,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:42:59,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:42:59,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:42:59,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:42:59,363 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:42:59,363 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:42:59,363 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:42:59,363 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:42:59,363 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:42:59,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:42:59,364 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:42:59,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:42:59,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:42:59,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:42:59,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:42:59,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:42:59,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:42:59,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:42:59,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:42:59,365 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:42:59,365 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:42:59,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:42:59,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:42:59,366 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:42:59,366 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:42:59,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:42:59,366 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:42:59,366 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:42:59,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:42:59,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:42:59,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:42:59,573 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:42:59,573 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:42:59,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann01-2.c [2023-12-16 17:43:00,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:43:00,682 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:43:00,682 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann01-2.c [2023-12-16 17:43:00,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1de63eca4/16025ed4963146ecad52a3eba6b78d3b/FLAGe85e0038f [2023-12-16 17:43:00,703 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1de63eca4/16025ed4963146ecad52a3eba6b78d3b [2023-12-16 17:43:00,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:43:00,707 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:43:00,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:43:00,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:43:00,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:43:00,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641a7d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00, skipping insertion in model container [2023-12-16 17:43:00,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,730 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:43:00,849 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann01-2.c[1234,1247] [2023-12-16 17:43:00,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:43:00,865 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:43:00,875 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann01-2.c[1234,1247] [2023-12-16 17:43:00,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:43:00,885 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:43:00,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00 WrapperNode [2023-12-16 17:43:00,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:43:00,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:43:00,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:43:00,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:43:00,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,907 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-12-16 17:43:00,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:43:00,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:43:00,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:43:00,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:43:00,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,915 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,921 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 17:43:00,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:43:00,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:43:00,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:43:00,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:43:00,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (1/1) ... [2023-12-16 17:43:00,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:43:00,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:43:00,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:43:00,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:43:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:43:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:43:00,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:43:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:43:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2023-12-16 17:43:00,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2023-12-16 17:43:01,017 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:43:01,019 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:43:01,147 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:43:01,168 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:43:01,168 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 17:43:01,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:43:01 BoogieIcfgContainer [2023-12-16 17:43:01,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:43:01,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:43:01,173 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:43:01,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:43:01,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:43:00" (1/3) ... [2023-12-16 17:43:01,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38132496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:43:01, skipping insertion in model container [2023-12-16 17:43:01,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:43:00" (2/3) ... [2023-12-16 17:43:01,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38132496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:43:01, skipping insertion in model container [2023-12-16 17:43:01,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:43:01" (3/3) ... [2023-12-16 17:43:01,179 INFO L112 eAbstractionObserver]: Analyzing ICFG Ackermann01-2.c [2023-12-16 17:43:01,190 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:43:01,191 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:43:01,228 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:43:01,233 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;@2d4249d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:43:01,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:43:01,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-16 17:43:01,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-16 17:43:01,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:01,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:01,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:01,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:01,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1592058167, now seen corresponding path program 1 times [2023-12-16 17:43:01,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:01,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705285740] [2023-12-16 17:43:01,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:43:01,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:01,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:01,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:43:01,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:43:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:43:01,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:43:01,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:01,494 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 17:43:01,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:43:01,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:01,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705285740] [2023-12-16 17:43:01,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705285740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:43:01,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:43:01,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:43:01,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343307427] [2023-12-16 17:43:01,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:43:01,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:43:01,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:01,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:43:01,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:43:01,544 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:43:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:43:01,750 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2023-12-16 17:43:01,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:43:01,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-12-16 17:43:01,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:43:01,757 INFO L225 Difference]: With dead ends: 30 [2023-12-16 17:43:01,757 INFO L226 Difference]: Without dead ends: 20 [2023-12-16 17:43:01,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:43:01,762 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:43:01,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 55 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:43:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-16 17:43:01,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-12-16 17:43:01,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 17:43:01,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2023-12-16 17:43:01,787 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 11 [2023-12-16 17:43:01,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:43:01,787 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2023-12-16 17:43:01,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:43:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-12-16 17:43:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-16 17:43:01,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:01,789 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:01,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:43:01,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:01,991 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:01,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:01,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1453353420, now seen corresponding path program 1 times [2023-12-16 17:43:01,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:01,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080602008] [2023-12-16 17:43:01,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:43:01,993 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:01,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:01,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:43:01,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:43:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:43:02,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:43:02,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 17:43:02,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:43:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 17:43:02,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:02,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080602008] [2023-12-16 17:43:02,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080602008] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:43:02,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:43:02,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2023-12-16 17:43:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746167479] [2023-12-16 17:43:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:43:02,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:43:02,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:02,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:43:02,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:43:02,314 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:43:02,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:43:02,476 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2023-12-16 17:43:02,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:43:02,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-12-16 17:43:02,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:43:02,478 INFO L225 Difference]: With dead ends: 27 [2023-12-16 17:43:02,478 INFO L226 Difference]: Without dead ends: 23 [2023-12-16 17:43:02,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:43:02,479 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:43:02,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 53 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:43:02,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-12-16 17:43:02,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2023-12-16 17:43:02,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 17:43:02,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2023-12-16 17:43:02,484 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 18 [2023-12-16 17:43:02,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:43:02,485 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2023-12-16 17:43:02,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:43:02,485 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-16 17:43:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:43:02,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:02,486 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:02,488 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 17:43:02,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:02,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:02,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:02,689 INFO L85 PathProgramCache]: Analyzing trace with hash 828036087, now seen corresponding path program 1 times [2023-12-16 17:43:02,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:02,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127186108] [2023-12-16 17:43:02,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:43:02,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:02,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:02,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:43:02,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:43:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:43:02,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:43:02,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:02,751 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-16 17:43:02,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:43:02,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:02,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127186108] [2023-12-16 17:43:02,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127186108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:43:02,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:43:02,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:43:02,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282301286] [2023-12-16 17:43:02,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:43:02,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:43:02,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:02,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:43:02,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:43:02,759 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:43:02,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:43:02,813 INFO L93 Difference]: Finished difference Result 40 states and 57 transitions. [2023-12-16 17:43:02,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:43:02,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2023-12-16 17:43:02,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:43:02,816 INFO L225 Difference]: With dead ends: 40 [2023-12-16 17:43:02,816 INFO L226 Difference]: Without dead ends: 23 [2023-12-16 17:43:02,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:43:02,819 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:43:02,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 38 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:43:02,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-12-16 17:43:02,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-12-16 17:43:02,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-16 17:43:02,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2023-12-16 17:43:02,829 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 23 [2023-12-16 17:43:02,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:43:02,829 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2023-12-16 17:43:02,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:43:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2023-12-16 17:43:02,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-16 17:43:02,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:02,830 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:02,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:43:03,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:03,031 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:03,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:03,031 INFO L85 PathProgramCache]: Analyzing trace with hash 826114414, now seen corresponding path program 1 times [2023-12-16 17:43:03,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:03,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138121030] [2023-12-16 17:43:03,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:43:03,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:03,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:03,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:43:03,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:43:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:43:03,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:43:03,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:03,196 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 17:43:03,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:43:03,623 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:43:03,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:03,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138121030] [2023-12-16 17:43:03,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138121030] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:43:03,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:43:03,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2023-12-16 17:43:03,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406819091] [2023-12-16 17:43:03,623 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:43:03,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-16 17:43:03,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:03,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-16 17:43:03,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:43:03,625 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 22 states, 20 states have (on average 1.45) internal successors, (29), 14 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 7 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:43:04,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:43:04,567 INFO L93 Difference]: Finished difference Result 62 states and 114 transitions. [2023-12-16 17:43:04,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-16 17:43:04,567 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 1.45) internal successors, (29), 14 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 7 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 30 [2023-12-16 17:43:04,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:43:04,570 INFO L225 Difference]: With dead ends: 62 [2023-12-16 17:43:04,570 INFO L226 Difference]: Without dead ends: 56 [2023-12-16 17:43:04,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=350, Invalid=1812, Unknown=0, NotChecked=0, Total=2162 [2023-12-16 17:43:04,571 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 51 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:43:04,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 148 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:43:04,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-16 17:43:04,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 34. [2023-12-16 17:43:04,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 22 states have internal predecessors, (23), 6 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (31), 10 states have call predecessors, (31), 6 states have call successors, (31) [2023-12-16 17:43:04,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 60 transitions. [2023-12-16 17:43:04,591 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 60 transitions. Word has length 30 [2023-12-16 17:43:04,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:43:04,591 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 60 transitions. [2023-12-16 17:43:04,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 1.45) internal successors, (29), 14 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 7 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:43:04,591 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2023-12-16 17:43:04,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-16 17:43:04,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:04,592 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:04,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:43:04,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:04,793 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:04,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash 184462849, now seen corresponding path program 2 times [2023-12-16 17:43:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:04,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754858232] [2023-12-16 17:43:04,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:43:04,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:04,817 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:43:04,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:43:04,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 17:43:04,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:43:04,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 17:43:04,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:04,950 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 17:43:04,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:43:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:43:05,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:05,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754858232] [2023-12-16 17:43:05,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754858232] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:43:05,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:43:05,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 24 [2023-12-16 17:43:05,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422044135] [2023-12-16 17:43:05,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:43:05,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 17:43:05,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:05,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 17:43:05,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:43:05,430 INFO L87 Difference]: Start difference. First operand 34 states and 60 transitions. Second operand has 24 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 7 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:43:06,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:43:06,401 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2023-12-16 17:43:06,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-16 17:43:06,405 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 7 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) Word has length 37 [2023-12-16 17:43:06,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:43:06,407 INFO L225 Difference]: With dead ends: 82 [2023-12-16 17:43:06,407 INFO L226 Difference]: Without dead ends: 76 [2023-12-16 17:43:06,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=359, Invalid=1993, Unknown=0, NotChecked=0, Total=2352 [2023-12-16 17:43:06,409 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 57 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:43:06,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 171 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:43:06,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-16 17:43:06,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 33. [2023-12-16 17:43:06,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 20 states have internal predecessors, (23), 6 states have call successors, (6), 1 states have call predecessors, (6), 5 states have return successors, (25), 11 states have call predecessors, (25), 6 states have call successors, (25) [2023-12-16 17:43:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 54 transitions. [2023-12-16 17:43:06,420 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 54 transitions. Word has length 37 [2023-12-16 17:43:06,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:43:06,420 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 54 transitions. [2023-12-16 17:43:06,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 7 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:43:06,420 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2023-12-16 17:43:06,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-16 17:43:06,422 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:06,422 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:06,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:43:06,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:06,624 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:06,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:06,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1481432065, now seen corresponding path program 3 times [2023-12-16 17:43:06,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:06,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398973711] [2023-12-16 17:43:06,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 17:43:06,625 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:06,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:06,626 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:43:06,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:43:06,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-16 17:43:06,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:43:06,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 17:43:06,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 32 proven. 17 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-16 17:43:06,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:43:07,182 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 38 proven. 14 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:43:07,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:07,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398973711] [2023-12-16 17:43:07,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398973711] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:43:07,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:43:07,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 24 [2023-12-16 17:43:07,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343888865] [2023-12-16 17:43:07,183 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:43:07,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 17:43:07,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:07,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 17:43:07,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:43:07,184 INFO L87 Difference]: Start difference. First operand 33 states and 54 transitions. Second operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 14 states have internal predecessors, (34), 3 states have call successors, (6), 1 states have call predecessors, (6), 8 states have return successors, (12), 11 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:43:08,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:43:08,481 INFO L93 Difference]: Finished difference Result 115 states and 251 transitions. [2023-12-16 17:43:08,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-16 17:43:08,481 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 14 states have internal predecessors, (34), 3 states have call successors, (6), 1 states have call predecessors, (6), 8 states have return successors, (12), 11 states have call predecessors, (12), 3 states have call successors, (12) Word has length 49 [2023-12-16 17:43:08,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:43:08,484 INFO L225 Difference]: With dead ends: 115 [2023-12-16 17:43:08,484 INFO L226 Difference]: Without dead ends: 109 [2023-12-16 17:43:08,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=573, Invalid=3087, Unknown=0, NotChecked=0, Total=3660 [2023-12-16 17:43:08,485 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 21 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:43:08,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 176 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:43:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-16 17:43:08,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 49. [2023-12-16 17:43:08,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.064516129032258) internal successors, (33), 28 states have internal predecessors, (33), 8 states have call successors, (8), 1 states have call predecessors, (8), 9 states have return successors, (64), 19 states have call predecessors, (64), 8 states have call successors, (64) [2023-12-16 17:43:08,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 105 transitions. [2023-12-16 17:43:08,511 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 105 transitions. Word has length 49 [2023-12-16 17:43:08,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:43:08,511 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 105 transitions. [2023-12-16 17:43:08,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 14 states have internal predecessors, (34), 3 states have call successors, (6), 1 states have call predecessors, (6), 8 states have return successors, (12), 11 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:43:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 105 transitions. [2023-12-16 17:43:08,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 17:43:08,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:08,513 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:08,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:43:08,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:08,725 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:08,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:08,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1194357590, now seen corresponding path program 4 times [2023-12-16 17:43:08,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:08,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442996773] [2023-12-16 17:43:08,726 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-16 17:43:08,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:08,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:08,727 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:43:08,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:43:08,759 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-16 17:43:08,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:43:08,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:43:08,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:08,788 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 38 proven. 21 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-16 17:43:08,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:43:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 38 proven. 23 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-16 17:43:08,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:08,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442996773] [2023-12-16 17:43:08,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442996773] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:43:08,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:43:08,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 7 [2023-12-16 17:43:08,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071903741] [2023-12-16 17:43:08,914 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:43:08,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:43:08,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:08,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:43:08,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:43:08,915 INFO L87 Difference]: Start difference. First operand 49 states and 105 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-12-16 17:43:08,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:43:08,986 INFO L93 Difference]: Finished difference Result 134 states and 489 transitions. [2023-12-16 17:43:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:43:08,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 56 [2023-12-16 17:43:08,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:43:08,989 INFO L225 Difference]: With dead ends: 134 [2023-12-16 17:43:08,989 INFO L226 Difference]: Without dead ends: 89 [2023-12-16 17:43:08,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:43:08,991 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:43:08,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 49 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:43:08,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-16 17:43:09,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-12-16 17:43:09,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.0555555555555556) internal successors, (57), 56 states have internal predecessors, (57), 12 states have call successors, (12), 2 states have call predecessors, (12), 22 states have return successors, (223), 30 states have call predecessors, (223), 12 states have call successors, (223) [2023-12-16 17:43:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 292 transitions. [2023-12-16 17:43:09,019 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 292 transitions. Word has length 56 [2023-12-16 17:43:09,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:43:09,019 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 292 transitions. [2023-12-16 17:43:09,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-12-16 17:43:09,020 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 292 transitions. [2023-12-16 17:43:09,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 17:43:09,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:09,024 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:09,027 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 17:43:09,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:09,227 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:09,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:09,227 INFO L85 PathProgramCache]: Analyzing trace with hash -994179230, now seen corresponding path program 5 times [2023-12-16 17:43:09,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:09,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407003779] [2023-12-16 17:43:09,230 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-16 17:43:09,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:09,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:09,231 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:43:09,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:43:09,279 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-12-16 17:43:09,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:43:09,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-16 17:43:09,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:09,473 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 16 proven. 50 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-12-16 17:43:09,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:43:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 24 proven. 60 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:43:10,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:10,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407003779] [2023-12-16 17:43:10,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407003779] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:43:10,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:43:10,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23] total 38 [2023-12-16 17:43:10,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269464156] [2023-12-16 17:43:10,512 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:43:10,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-16 17:43:10,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:10,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-16 17:43:10,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1268, Unknown=0, NotChecked=0, Total=1406 [2023-12-16 17:43:10,513 INFO L87 Difference]: Start difference. First operand 89 states and 292 transitions. Second operand has 38 states, 32 states have (on average 1.34375) internal successors, (43), 22 states have internal predecessors, (43), 7 states have call successors, (9), 1 states have call predecessors, (9), 13 states have return successors, (16), 16 states have call predecessors, (16), 7 states have call successors, (16) [2023-12-16 17:43:18,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:43:18,888 INFO L93 Difference]: Finished difference Result 551 states and 2462 transitions. [2023-12-16 17:43:18,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2023-12-16 17:43:18,893 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 32 states have (on average 1.34375) internal successors, (43), 22 states have internal predecessors, (43), 7 states have call successors, (9), 1 states have call predecessors, (9), 13 states have return successors, (16), 16 states have call predecessors, (16), 7 states have call successors, (16) Word has length 54 [2023-12-16 17:43:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:43:18,907 INFO L225 Difference]: With dead ends: 551 [2023-12-16 17:43:18,907 INFO L226 Difference]: Without dead ends: 545 [2023-12-16 17:43:18,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14738 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=6362, Invalid=38794, Unknown=0, NotChecked=0, Total=45156 [2023-12-16 17:43:18,919 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:43:18,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 269 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 17:43:18,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-16 17:43:18,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 153. [2023-12-16 17:43:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 92 states have (on average 1.0326086956521738) internal successors, (95), 94 states have internal predecessors, (95), 19 states have call successors, (19), 2 states have call predecessors, (19), 41 states have return successors, (706), 56 states have call predecessors, (706), 19 states have call successors, (706) [2023-12-16 17:43:18,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 820 transitions. [2023-12-16 17:43:18,996 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 820 transitions. Word has length 54 [2023-12-16 17:43:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:43:18,996 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 820 transitions. [2023-12-16 17:43:18,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 32 states have (on average 1.34375) internal successors, (43), 22 states have internal predecessors, (43), 7 states have call successors, (9), 1 states have call predecessors, (9), 13 states have return successors, (16), 16 states have call predecessors, (16), 7 states have call successors, (16) [2023-12-16 17:43:18,996 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 820 transitions. [2023-12-16 17:43:19,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 17:43:19,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:19,000 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:19,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:43:19,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:19,202 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:19,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:19,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1501503883, now seen corresponding path program 6 times [2023-12-16 17:43:19,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:19,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524032127] [2023-12-16 17:43:19,203 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-16 17:43:19,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:19,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:19,220 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:43:19,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:43:19,255 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-12-16 17:43:19,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:43:19,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:43:19,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 76 proven. 20 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-16 17:43:19,301 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:43:19,553 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 76 proven. 23 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-12-16 17:43:19,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:19,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524032127] [2023-12-16 17:43:19,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524032127] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:43:19,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:43:19,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 10 [2023-12-16 17:43:19,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597735405] [2023-12-16 17:43:19,554 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:43:19,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:43:19,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:19,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:43:19,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:43:19,555 INFO L87 Difference]: Start difference. First operand 153 states and 820 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 5 states have call successors, (8), 1 states have call predecessors, (8), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-12-16 17:43:19,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:43:19,649 INFO L93 Difference]: Finished difference Result 296 states and 2514 transitions. [2023-12-16 17:43:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:43:19,650 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 5 states have call successors, (8), 1 states have call predecessors, (8), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 63 [2023-12-16 17:43:19,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:43:19,653 INFO L225 Difference]: With dead ends: 296 [2023-12-16 17:43:19,653 INFO L226 Difference]: Without dead ends: 147 [2023-12-16 17:43:19,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:43:19,657 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:43:19,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 80 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:43:19,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-12-16 17:43:19,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 79. [2023-12-16 17:43:19,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 48 states have (on average 1.0625) internal successors, (51), 49 states have internal predecessors, (51), 12 states have call successors, (12), 3 states have call predecessors, (12), 18 states have return successors, (176), 26 states have call predecessors, (176), 12 states have call successors, (176) [2023-12-16 17:43:19,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 239 transitions. [2023-12-16 17:43:19,678 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 239 transitions. Word has length 63 [2023-12-16 17:43:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:43:19,678 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 239 transitions. [2023-12-16 17:43:19,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 5 states have call successors, (8), 1 states have call predecessors, (8), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-12-16 17:43:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 239 transitions. [2023-12-16 17:43:19,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 17:43:19,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:19,679 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 9, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:19,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:43:19,881 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 17:43:19,882 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:19,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:19,885 INFO L85 PathProgramCache]: Analyzing trace with hash -115935473, now seen corresponding path program 7 times [2023-12-16 17:43:19,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:19,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427815978] [2023-12-16 17:43:19,885 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-16 17:43:19,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:19,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:19,886 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 17:43:19,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:43:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:43:19,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-16 17:43:19,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:20,114 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 158 proven. 81 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-12-16 17:43:20,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:43:21,475 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 170 proven. 87 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2023-12-16 17:43:21,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:21,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427815978] [2023-12-16 17:43:21,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427815978] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:43:21,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:43:21,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 24] total 40 [2023-12-16 17:43:21,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935728190] [2023-12-16 17:43:21,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:43:21,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-16 17:43:21,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:21,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-16 17:43:21,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1415, Unknown=0, NotChecked=0, Total=1560 [2023-12-16 17:43:21,478 INFO L87 Difference]: Start difference. First operand 79 states and 239 transitions. Second operand has 40 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 22 states have internal predecessors, (49), 7 states have call successors, (10), 1 states have call predecessors, (10), 14 states have return successors, (23), 19 states have call predecessors, (23), 7 states have call successors, (23) [2023-12-16 17:43:26,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:43:26,800 INFO L93 Difference]: Finished difference Result 352 states and 1475 transitions. [2023-12-16 17:43:26,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-16 17:43:26,801 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 22 states have internal predecessors, (49), 7 states have call successors, (10), 1 states have call predecessors, (10), 14 states have return successors, (23), 19 states have call predecessors, (23), 7 states have call successors, (23) Word has length 99 [2023-12-16 17:43:26,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:43:26,806 INFO L225 Difference]: With dead ends: 352 [2023-12-16 17:43:26,806 INFO L226 Difference]: Without dead ends: 346 [2023-12-16 17:43:26,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6315 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3322, Invalid=19328, Unknown=0, NotChecked=0, Total=22650 [2023-12-16 17:43:26,810 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 47 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:43:26,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 263 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 17:43:26,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-12-16 17:43:26,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 73. [2023-12-16 17:43:26,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 45 states have internal predecessors, (47), 12 states have call successors, (12), 3 states have call predecessors, (12), 16 states have return successors, (155), 24 states have call predecessors, (155), 12 states have call successors, (155) [2023-12-16 17:43:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 214 transitions. [2023-12-16 17:43:26,853 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 214 transitions. Word has length 99 [2023-12-16 17:43:26,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:43:26,853 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 214 transitions. [2023-12-16 17:43:26,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 22 states have internal predecessors, (49), 7 states have call successors, (10), 1 states have call predecessors, (10), 14 states have return successors, (23), 19 states have call predecessors, (23), 7 states have call successors, (23) [2023-12-16 17:43:26,853 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 214 transitions. [2023-12-16 17:43:26,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:43:26,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:43:26,857 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:43:26,862 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 (11)] Ended with exit code 0 [2023-12-16 17:43:27,060 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 17:43:27,060 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:43:27,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:43:27,061 INFO L85 PathProgramCache]: Analyzing trace with hash -918630070, now seen corresponding path program 8 times [2023-12-16 17:43:27,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:43:27,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753894960] [2023-12-16 17:43:27,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:43:27,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:43:27,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:43:27,062 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 17:43:27,063 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 17:43:27,124 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 17:43:27,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:43:27,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-16 17:43:27,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:43:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 64 proven. 226 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2023-12-16 17:43:27,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:43:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 80 proven. 294 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-12-16 17:43:31,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:43:31,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753894960] [2023-12-16 17:43:31,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753894960] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:43:31,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:43:31,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 43] total 70 [2023-12-16 17:43:31,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335129456] [2023-12-16 17:43:31,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:43:31,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-12-16 17:43:31,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:43:31,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-12-16 17:43:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=4440, Unknown=0, NotChecked=0, Total=4830 [2023-12-16 17:43:31,036 INFO L87 Difference]: Start difference. First operand 73 states and 214 transitions. Second operand has 70 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 38 states have internal predecessors, (71), 15 states have call successors, (17), 1 states have call predecessors, (17), 25 states have return successors, (32), 32 states have call predecessors, (32), 15 states have call successors, (32) Received shutdown request... [2023-12-16 17:44:12,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 428 states. [2023-12-16 17:44:12,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 489 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101266 ImplicationChecksByTransitivity, 37.4s TimeCoverageRelationStatistics Valid=32066, Invalid=208524, Unknown=0, NotChecked=0, Total=240590 [2023-12-16 17:44:12,469 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 99 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 9177 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 9482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 9177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:44:12,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 683 Invalid, 9482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 9177 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-16 17:44:12,470 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:44:12,472 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:44:12,476 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 17:44:12,494 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:44:12,673 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 17:44:12,674 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (73states) and FLOYD_HOARE automaton (currently 428 states, 70 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-5-2-1 term,while PolyPacSimplificationTermWalker was simplifying a ∧-5-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-1 context. [2023-12-16 17:44:12,677 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1] [2023-12-16 17:44:12,679 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:44:12,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:44:12 BoogieIcfgContainer [2023-12-16 17:44:12,680 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:44:12,682 INFO L158 Benchmark]: Toolchain (without parser) took 71975.34ms. Allocated memory was 199.2MB in the beginning and 311.4MB in the end (delta: 112.2MB). Free memory was 163.0MB in the beginning and 171.7MB in the end (delta: -8.7MB). Peak memory consumption was 105.0MB. Max. memory is 8.0GB. [2023-12-16 17:44:12,682 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 199.2MB. Free memory was 157.2MB in the beginning and 157.1MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:44:12,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.98ms. Allocated memory is still 199.2MB. Free memory was 162.7MB in the beginning and 151.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 17:44:12,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.59ms. Allocated memory is still 199.2MB. Free memory was 151.8MB in the beginning and 150.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 17:44:12,683 INFO L158 Benchmark]: Boogie Preprocessor took 20.33ms. Allocated memory is still 199.2MB. Free memory was 150.4MB in the beginning and 148.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:44:12,683 INFO L158 Benchmark]: RCFGBuilder took 240.07ms. Allocated memory is still 199.2MB. Free memory was 148.4MB in the beginning and 136.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 17:44:12,684 INFO L158 Benchmark]: TraceAbstraction took 71507.42ms. Allocated memory was 199.2MB in the beginning and 311.4MB in the end (delta: 112.2MB). Free memory was 136.2MB in the beginning and 171.7MB in the end (delta: -35.6MB). Peak memory consumption was 77.7MB. Max. memory is 8.0GB. [2023-12-16 17:44:12,685 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 199.2MB. Free memory was 157.2MB in the beginning and 157.1MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 176.98ms. Allocated memory is still 199.2MB. Free memory was 162.7MB in the beginning and 151.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.59ms. Allocated memory is still 199.2MB. Free memory was 151.8MB in the beginning and 150.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.33ms. Allocated memory is still 199.2MB. Free memory was 150.4MB in the beginning and 148.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 240.07ms. Allocated memory is still 199.2MB. Free memory was 148.4MB in the beginning and 136.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 71507.42ms. Allocated memory was 199.2MB in the beginning and 311.4MB in the end (delta: 112.2MB). Free memory was 136.2MB in the beginning and 171.7MB in the end (delta: -35.6MB). Peak memory consumption was 77.7MB. 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: 46]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 46). Cancelled while NwaCegarLoop was constructing difference of abstraction (73states) and FLOYD_HOARE automaton (currently 428 states, 70 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-5-2-1 term,while PolyPacSimplificationTermWalker was simplifying a ∧-5-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.5s, OverallIterations: 11, TraceHistogramMax: 16, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 59.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 407 SdHoareTripleChecker+Valid, 10.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 352 mSDsluCounter, 1985 SdHoareTripleChecker+Invalid, 8.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1770 mSDsCounter, 737 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14905 IncrementalHoareTripleChecker+Invalid, 15642 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 737 mSolverCounterUnsat, 215 mSDtfsCounter, 14905 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1856 GetRequests, 808 SyntacticMatches, 0 SemanticMatches, 1047 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123635 ImplicationChecksByTransitivity, 52.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=8, InterpolantAutomatonStates: 442, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 860 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 542 NumberOfCodeBlocks, 507 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1030 ConstructedInterpolants, 0 QuantifiedInterpolants, 2793 SizeOfPredicates, 48 NumberOfNonLiveVariables, 993 ConjunctsInSsa, 185 ConjunctsInUnsatCore, 20 InterpolantComputations, 3 PerfectInterpolantSequences, 2384/3352 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