/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/systemc/mem_slave_tlm.4.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 07:11:00,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 07:11:00,924 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 07:11:00,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 07:11:00,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 07:11:00,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 07:11:00,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 07:11:00,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 07:11:00,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 07:11:00,959 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 07:11:00,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 07:11:00,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 07:11:00,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 07:11:00,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 07:11:00,961 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 07:11:00,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 07:11:00,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 07:11:00,961 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 07:11:00,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 07:11:00,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 07:11:00,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 07:11:00,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 07:11:00,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 07:11:00,963 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 07:11:00,963 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 07:11:00,963 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 07:11:00,963 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 07:11:00,963 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 07:11:00,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 07:11:00,963 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 07:11:00,964 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 07:11:00,964 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 07:11:00,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 07:11:00,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 07:11:00,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:11:00,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 07:11:00,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 07:11:00,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 07:11:00,965 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 07:11:00,965 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 07:11:00,965 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 07:11:00,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 07:11:00,966 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 07:11:00,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 07:11:00,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 07:11:00,966 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 07:11:00,966 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 07:11:01,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 07:11:01,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 07:11:01,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 07:11:01,166 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 07:11:01,166 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 07:11:01,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/mem_slave_tlm.4.cil.c [2023-12-25 07:11:02,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 07:11:02,496 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 07:11:02,497 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/mem_slave_tlm.4.cil.c [2023-12-25 07:11:02,510 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703473e1e/7180699a77ba448aa27864629c9cdc41/FLAGf0ba9741a [2023-12-25 07:11:02,523 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703473e1e/7180699a77ba448aa27864629c9cdc41 [2023-12-25 07:11:02,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 07:11:02,526 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 07:11:02,528 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 07:11:02,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 07:11:02,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 07:11:02,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:02,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31876651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02, skipping insertion in model container [2023-12-25 07:11:02,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:02,570 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 07:11:02,691 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/mem_slave_tlm.4.cil.c[646,659] [2023-12-25 07:11:02,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:11:02,809 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 07:11:02,825 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/mem_slave_tlm.4.cil.c[646,659] [2023-12-25 07:11:02,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:11:02,905 INFO L206 MainTranslator]: Completed translation [2023-12-25 07:11:02,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02 WrapperNode [2023-12-25 07:11:02,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 07:11:02,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 07:11:02,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 07:11:02,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 07:11:02,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:02,932 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:02,976 INFO L138 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 859 [2023-12-25 07:11:02,976 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 07:11:02,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 07:11:02,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 07:11:02,977 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 07:11:02,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:02,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:02,987 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:03,004 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]. [2023-12-25 07:11:03,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:03,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:03,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:03,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:03,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:03,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:03,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 07:11:03,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 07:11:03,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 07:11:03,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 07:11:03,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (1/1) ... [2023-12-25 07:11:03,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:11:03,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 07:11:03,166 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) [2023-12-25 07:11:03,187 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 [2023-12-25 07:11:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 07:11:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 07:11:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-25 07:11:03,204 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-25 07:11:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 07:11:03,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 07:11:03,285 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 07:11:03,287 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 07:11:03,907 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 07:11:03,957 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 07:11:03,957 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-12-25 07:11:03,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:11:03 BoogieIcfgContainer [2023-12-25 07:11:03,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 07:11:03,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 07:11:03,959 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 07:11:03,962 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 07:11:03,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 07:11:02" (1/3) ... [2023-12-25 07:11:03,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eefcee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:11:03, skipping insertion in model container [2023-12-25 07:11:03,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:11:02" (2/3) ... [2023-12-25 07:11:03,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eefcee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:11:03, skipping insertion in model container [2023-12-25 07:11:03,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:11:03" (3/3) ... [2023-12-25 07:11:03,965 INFO L112 eAbstractionObserver]: Analyzing ICFG mem_slave_tlm.4.cil.c [2023-12-25 07:11:03,977 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 07:11:03,977 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 07:11:04,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 07:11:04,025 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;@7b4352bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 07:11:04,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 07:11:04,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 253 states, 245 states have (on average 1.9387755102040816) internal successors, (475), 251 states have internal predecessors, (475), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-25 07:11:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-25 07:11:04,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:04,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:04,041 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:04,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:04,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1837280988, now seen corresponding path program 1 times [2023-12-25 07:11:04,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:04,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285003524] [2023-12-25 07:11:04,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:04,060 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 [2023-12-25 07:11:04,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:04,065 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) [2023-12-25 07:11:04,070 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 [2023-12-25 07:11:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:04,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 07:11:04,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:04,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:04,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:04,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:04,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285003524] [2023-12-25 07:11:04,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285003524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:04,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:04,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:11:04,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038774192] [2023-12-25 07:11:04,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:04,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 07:11:04,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:04,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 07:11:04,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 07:11:04,199 INFO L87 Difference]: Start difference. First operand has 253 states, 245 states have (on average 1.9387755102040816) internal successors, (475), 251 states have internal predecessors, (475), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:04,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:04,290 INFO L93 Difference]: Finished difference Result 486 states and 933 transitions. [2023-12-25 07:11:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 07:11:04,294 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-12-25 07:11:04,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:04,303 INFO L225 Difference]: With dead ends: 486 [2023-12-25 07:11:04,303 INFO L226 Difference]: Without dead ends: 250 [2023-12-25 07:11:04,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 07:11:04,309 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:04,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 431 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:11:04,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-12-25 07:11:04,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2023-12-25 07:11:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 244 states have (on average 1.8278688524590163) internal successors, (446), 248 states have internal predecessors, (446), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:04,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 451 transitions. [2023-12-25 07:11:04,354 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 451 transitions. Word has length 26 [2023-12-25 07:11:04,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:04,354 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 451 transitions. [2023-12-25 07:11:04,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:04,355 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 451 transitions. [2023-12-25 07:11:04,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-25 07:11:04,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:04,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:04,371 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 [2023-12-25 07:11:04,563 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 [2023-12-25 07:11:04,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:04,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:04,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1283938675, now seen corresponding path program 1 times [2023-12-25 07:11:04,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:04,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181941244] [2023-12-25 07:11:04,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:04,565 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 [2023-12-25 07:11:04,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:04,567 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) [2023-12-25 07:11:04,568 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 [2023-12-25 07:11:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:04,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:04,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:04,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:04,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:04,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:04,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181941244] [2023-12-25 07:11:04,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181941244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:04,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:04,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:11:04,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459738613] [2023-12-25 07:11:04,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:04,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:04,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:04,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:04,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:04,730 INFO L87 Difference]: Start difference. First operand 250 states and 451 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:05,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:05,033 INFO L93 Difference]: Finished difference Result 661 states and 1177 transitions. [2023-12-25 07:11:05,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:05,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-12-25 07:11:05,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:05,036 INFO L225 Difference]: With dead ends: 661 [2023-12-25 07:11:05,036 INFO L226 Difference]: Without dead ends: 415 [2023-12-25 07:11:05,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:05,037 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 239 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:05,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 708 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:11:05,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-12-25 07:11:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 408. [2023-12-25 07:11:05,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 402 states have (on average 1.644278606965174) internal successors, (661), 406 states have internal predecessors, (661), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:05,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 666 transitions. [2023-12-25 07:11:05,050 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 666 transitions. Word has length 27 [2023-12-25 07:11:05,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:05,050 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 666 transitions. [2023-12-25 07:11:05,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:05,051 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 666 transitions. [2023-12-25 07:11:05,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-25 07:11:05,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:05,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:05,056 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 [2023-12-25 07:11:05,254 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 [2023-12-25 07:11:05,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:05,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:05,256 INFO L85 PathProgramCache]: Analyzing trace with hash 410826932, now seen corresponding path program 1 times [2023-12-25 07:11:05,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:05,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422784992] [2023-12-25 07:11:05,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:05,256 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 [2023-12-25 07:11:05,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:05,262 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) [2023-12-25 07:11:05,279 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 [2023-12-25 07:11:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:05,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:05,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:05,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:05,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:05,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:05,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422784992] [2023-12-25 07:11:05,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422784992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:05,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:05,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:11:05,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212296697] [2023-12-25 07:11:05,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:05,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:05,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:05,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:05,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:05,361 INFO L87 Difference]: Start difference. First operand 408 states and 666 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:05,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:05,499 INFO L93 Difference]: Finished difference Result 1072 states and 1776 transitions. [2023-12-25 07:11:05,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:05,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-12-25 07:11:05,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:05,502 INFO L225 Difference]: With dead ends: 1072 [2023-12-25 07:11:05,502 INFO L226 Difference]: Without dead ends: 677 [2023-12-25 07:11:05,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:05,504 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 316 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:05,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 940 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:05,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2023-12-25 07:11:05,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 670. [2023-12-25 07:11:05,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 664 states have (on average 1.6762048192771084) internal successors, (1113), 668 states have internal predecessors, (1113), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:05,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1118 transitions. [2023-12-25 07:11:05,521 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1118 transitions. Word has length 38 [2023-12-25 07:11:05,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:05,521 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 1118 transitions. [2023-12-25 07:11:05,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:05,521 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1118 transitions. [2023-12-25 07:11:05,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-25 07:11:05,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:05,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:05,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-25 07:11:05,724 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 [2023-12-25 07:11:05,724 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:05,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:05,725 INFO L85 PathProgramCache]: Analyzing trace with hash 73427941, now seen corresponding path program 1 times [2023-12-25 07:11:05,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:05,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259092943] [2023-12-25 07:11:05,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:05,725 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 [2023-12-25 07:11:05,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:05,726 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) [2023-12-25 07:11:05,751 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 [2023-12-25 07:11:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:05,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:05,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:05,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:05,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:05,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259092943] [2023-12-25 07:11:05,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259092943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:05,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:05,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:11:05,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952506250] [2023-12-25 07:11:05,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:05,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:05,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:05,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:05,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:05,809 INFO L87 Difference]: Start difference. First operand 670 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:05,894 INFO L93 Difference]: Finished difference Result 1676 states and 2799 transitions. [2023-12-25 07:11:05,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:05,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-12-25 07:11:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:05,898 INFO L225 Difference]: With dead ends: 1676 [2023-12-25 07:11:05,898 INFO L226 Difference]: Without dead ends: 1030 [2023-12-25 07:11:05,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:05,899 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 340 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:05,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 742 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:05,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-12-25 07:11:05,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1019. [2023-12-25 07:11:05,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1013 states have (on average 1.6692991115498519) internal successors, (1691), 1017 states have internal predecessors, (1691), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1696 transitions. [2023-12-25 07:11:05,919 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1696 transitions. Word has length 39 [2023-12-25 07:11:05,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:05,920 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1696 transitions. [2023-12-25 07:11:05,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:05,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1696 transitions. [2023-12-25 07:11:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-25 07:11:05,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:05,921 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:05,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-25 07:11:06,123 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 [2023-12-25 07:11:06,124 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:06,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:06,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1803426404, now seen corresponding path program 1 times [2023-12-25 07:11:06,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:06,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471884974] [2023-12-25 07:11:06,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:06,125 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 [2023-12-25 07:11:06,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:06,126 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) [2023-12-25 07:11:06,136 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 [2023-12-25 07:11:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:06,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:06,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:06,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:06,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:06,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471884974] [2023-12-25 07:11:06,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471884974] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:06,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:06,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:11:06,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726155440] [2023-12-25 07:11:06,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:06,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:06,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:06,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:06,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:06,208 INFO L87 Difference]: Start difference. First operand 1019 states and 1696 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:06,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:06,346 INFO L93 Difference]: Finished difference Result 2708 states and 4520 transitions. [2023-12-25 07:11:06,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:06,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-12-25 07:11:06,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:06,351 INFO L225 Difference]: With dead ends: 2708 [2023-12-25 07:11:06,352 INFO L226 Difference]: Without dead ends: 1713 [2023-12-25 07:11:06,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:06,354 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 314 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:06,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 878 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:06,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2023-12-25 07:11:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1693. [2023-12-25 07:11:06,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1687 states have (on average 1.6698280972139894) internal successors, (2817), 1691 states have internal predecessors, (2817), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:06,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2822 transitions. [2023-12-25 07:11:06,391 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2822 transitions. Word has length 43 [2023-12-25 07:11:06,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:06,391 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 2822 transitions. [2023-12-25 07:11:06,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2822 transitions. [2023-12-25 07:11:06,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 07:11:06,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:06,393 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:06,398 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 [2023-12-25 07:11:06,595 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 [2023-12-25 07:11:06,596 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:06,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:06,596 INFO L85 PathProgramCache]: Analyzing trace with hash 195132105, now seen corresponding path program 1 times [2023-12-25 07:11:06,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:06,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517048447] [2023-12-25 07:11:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:06,597 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 [2023-12-25 07:11:06,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:06,598 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) [2023-12-25 07:11:06,600 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 [2023-12-25 07:11:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:06,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:06,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:06,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:06,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:06,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:06,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517048447] [2023-12-25 07:11:06,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517048447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:06,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:06,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:11:06,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548965883] [2023-12-25 07:11:06,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:06,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:06,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:06,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:06,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:06,734 INFO L87 Difference]: Start difference. First operand 1693 states and 2822 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:06,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:06,841 INFO L93 Difference]: Finished difference Result 3366 states and 5612 transitions. [2023-12-25 07:11:06,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:06,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-25 07:11:06,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:06,846 INFO L225 Difference]: With dead ends: 3366 [2023-12-25 07:11:06,846 INFO L226 Difference]: Without dead ends: 1697 [2023-12-25 07:11:06,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:06,849 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 404 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:06,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 966 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2023-12-25 07:11:06,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1591. [2023-12-25 07:11:06,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1585 states have (on average 1.6485804416403786) internal successors, (2613), 1589 states have internal predecessors, (2613), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:06,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 2618 transitions. [2023-12-25 07:11:06,883 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 2618 transitions. Word has length 53 [2023-12-25 07:11:06,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:06,883 INFO L495 AbstractCegarLoop]: Abstraction has 1591 states and 2618 transitions. [2023-12-25 07:11:06,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:06,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 2618 transitions. [2023-12-25 07:11:06,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 07:11:06,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:06,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:06,902 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 [2023-12-25 07:11:07,087 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 [2023-12-25 07:11:07,088 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:07,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:07,088 INFO L85 PathProgramCache]: Analyzing trace with hash -399352451, now seen corresponding path program 1 times [2023-12-25 07:11:07,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:07,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653495745] [2023-12-25 07:11:07,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:07,089 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 [2023-12-25 07:11:07,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:07,090 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) [2023-12-25 07:11:07,092 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 [2023-12-25 07:11:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:07,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:07,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:07,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:07,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:07,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:07,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653495745] [2023-12-25 07:11:07,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653495745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:07,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:07,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:11:07,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696984069] [2023-12-25 07:11:07,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:07,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:07,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:07,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:07,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:07,196 INFO L87 Difference]: Start difference. First operand 1591 states and 2618 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:07,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:07,418 INFO L93 Difference]: Finished difference Result 4140 states and 6782 transitions. [2023-12-25 07:11:07,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:07,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-25 07:11:07,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:07,429 INFO L225 Difference]: With dead ends: 4140 [2023-12-25 07:11:07,429 INFO L226 Difference]: Without dead ends: 2567 [2023-12-25 07:11:07,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:07,432 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 357 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:07,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 751 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2023-12-25 07:11:07,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2524. [2023-12-25 07:11:07,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2524 states, 2518 states have (on average 1.6028594122319302) internal successors, (4036), 2522 states have internal predecessors, (4036), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:07,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2524 states to 2524 states and 4041 transitions. [2023-12-25 07:11:07,529 INFO L78 Accepts]: Start accepts. Automaton has 2524 states and 4041 transitions. Word has length 57 [2023-12-25 07:11:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:07,529 INFO L495 AbstractCegarLoop]: Abstraction has 2524 states and 4041 transitions. [2023-12-25 07:11:07,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 4041 transitions. [2023-12-25 07:11:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 07:11:07,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:07,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:07,546 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 [2023-12-25 07:11:07,735 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 [2023-12-25 07:11:07,735 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:07,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:07,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1084631645, now seen corresponding path program 1 times [2023-12-25 07:11:07,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:07,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125438347] [2023-12-25 07:11:07,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:07,736 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 [2023-12-25 07:11:07,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:07,738 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) [2023-12-25 07:11:07,765 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 [2023-12-25 07:11:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:07,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:07,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:07,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:07,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:07,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125438347] [2023-12-25 07:11:07,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125438347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:07,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:07,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:11:07,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566481809] [2023-12-25 07:11:07,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:07,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:07,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:07,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:07,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:07,824 INFO L87 Difference]: Start difference. First operand 2524 states and 4041 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:08,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:08,169 INFO L93 Difference]: Finished difference Result 6105 states and 9859 transitions. [2023-12-25 07:11:08,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-25 07:11:08,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:08,184 INFO L225 Difference]: With dead ends: 6105 [2023-12-25 07:11:08,185 INFO L226 Difference]: Without dead ends: 3646 [2023-12-25 07:11:08,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:08,190 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 241 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:08,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 791 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:11:08,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2023-12-25 07:11:08,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 3623. [2023-12-25 07:11:08,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3623 states, 3617 states have (on average 1.5120265413325962) internal successors, (5469), 3621 states have internal predecessors, (5469), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 5474 transitions. [2023-12-25 07:11:08,320 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 5474 transitions. Word has length 57 [2023-12-25 07:11:08,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:08,320 INFO L495 AbstractCegarLoop]: Abstraction has 3623 states and 5474 transitions. [2023-12-25 07:11:08,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:08,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 5474 transitions. [2023-12-25 07:11:08,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 07:11:08,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:08,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:08,340 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 [2023-12-25 07:11:08,525 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 [2023-12-25 07:11:08,526 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:08,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:08,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1961685769, now seen corresponding path program 1 times [2023-12-25 07:11:08,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:08,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766142939] [2023-12-25 07:11:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:08,527 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 [2023-12-25 07:11:08,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:08,536 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) [2023-12-25 07:11:08,568 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 [2023-12-25 07:11:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:08,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:08,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:08,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:08,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:08,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:08,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766142939] [2023-12-25 07:11:08,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766142939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:08,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:08,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:11:08,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594055971] [2023-12-25 07:11:08,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:08,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:08,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:08,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:08,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:08,693 INFO L87 Difference]: Start difference. First operand 3623 states and 5474 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:08,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:08,836 INFO L93 Difference]: Finished difference Result 7118 states and 10776 transitions. [2023-12-25 07:11:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:08,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-12-25 07:11:08,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:08,849 INFO L225 Difference]: With dead ends: 7118 [2023-12-25 07:11:08,849 INFO L226 Difference]: Without dead ends: 3560 [2023-12-25 07:11:08,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:08,856 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 329 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:08,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 402 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:08,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2023-12-25 07:11:08,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 3560. [2023-12-25 07:11:08,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3554 states have (on average 1.4845244794597636) internal successors, (5276), 3558 states have internal predecessors, (5276), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:08,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5281 transitions. [2023-12-25 07:11:08,968 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5281 transitions. Word has length 59 [2023-12-25 07:11:08,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:08,968 INFO L495 AbstractCegarLoop]: Abstraction has 3560 states and 5281 transitions. [2023-12-25 07:11:08,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:08,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5281 transitions. [2023-12-25 07:11:08,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 07:11:08,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:08,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:08,987 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 [2023-12-25 07:11:09,174 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 [2023-12-25 07:11:09,174 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:09,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:09,175 INFO L85 PathProgramCache]: Analyzing trace with hash 514755726, now seen corresponding path program 1 times [2023-12-25 07:11:09,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:09,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296310911] [2023-12-25 07:11:09,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:09,175 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 [2023-12-25 07:11:09,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:09,177 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) [2023-12-25 07:11:09,206 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 [2023-12-25 07:11:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:09,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:09,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:09,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:09,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:09,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:09,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296310911] [2023-12-25 07:11:09,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296310911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:09,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:09,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:11:09,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090866239] [2023-12-25 07:11:09,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:09,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:09,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:09,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:09,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:09,247 INFO L87 Difference]: Start difference. First operand 3560 states and 5281 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:09,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:09,432 INFO L93 Difference]: Finished difference Result 7710 states and 11413 transitions. [2023-12-25 07:11:09,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:09,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-25 07:11:09,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:09,447 INFO L225 Difference]: With dead ends: 7710 [2023-12-25 07:11:09,447 INFO L226 Difference]: Without dead ends: 4170 [2023-12-25 07:11:09,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:09,452 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 217 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:09,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 897 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:09,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2023-12-25 07:11:09,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3253. [2023-12-25 07:11:09,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 3247 states have (on average 1.4878349245457345) internal successors, (4831), 3251 states have internal predecessors, (4831), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 4836 transitions. [2023-12-25 07:11:09,556 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 4836 transitions. Word has length 60 [2023-12-25 07:11:09,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:09,557 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 4836 transitions. [2023-12-25 07:11:09,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 4836 transitions. [2023-12-25 07:11:09,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 07:11:09,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:09,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:09,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:09,761 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 [2023-12-25 07:11:09,761 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:09,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:09,762 INFO L85 PathProgramCache]: Analyzing trace with hash 951806806, now seen corresponding path program 1 times [2023-12-25 07:11:09,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:09,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541407177] [2023-12-25 07:11:09,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:09,763 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 [2023-12-25 07:11:09,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:09,764 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) [2023-12-25 07:11:09,769 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 [2023-12-25 07:11:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:09,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:11:09,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:09,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:09,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:09,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541407177] [2023-12-25 07:11:09,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541407177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:09,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:09,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 07:11:09,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391510800] [2023-12-25 07:11:09,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:09,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:11:09,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:09,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:11:09,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:11:09,891 INFO L87 Difference]: Start difference. First operand 3253 states and 4836 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:10,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:10,204 INFO L93 Difference]: Finished difference Result 9062 states and 13564 transitions. [2023-12-25 07:11:10,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:11:10,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-25 07:11:10,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:10,220 INFO L225 Difference]: With dead ends: 9062 [2023-12-25 07:11:10,220 INFO L226 Difference]: Without dead ends: 6658 [2023-12-25 07:11:10,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:11:10,223 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 733 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:10,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 2175 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:11:10,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6658 states. [2023-12-25 07:11:10,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6658 to 4738. [2023-12-25 07:11:10,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4738 states, 4732 states have (on average 1.4826711749788672) internal successors, (7016), 4736 states have internal predecessors, (7016), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:10,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4738 states to 4738 states and 7021 transitions. [2023-12-25 07:11:10,370 INFO L78 Accepts]: Start accepts. Automaton has 4738 states and 7021 transitions. Word has length 62 [2023-12-25 07:11:10,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:10,371 INFO L495 AbstractCegarLoop]: Abstraction has 4738 states and 7021 transitions. [2023-12-25 07:11:10,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:10,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4738 states and 7021 transitions. [2023-12-25 07:11:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 07:11:10,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:10,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:10,390 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 [2023-12-25 07:11:10,575 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 [2023-12-25 07:11:10,575 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:10,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:10,576 INFO L85 PathProgramCache]: Analyzing trace with hash 704541015, now seen corresponding path program 1 times [2023-12-25 07:11:10,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:10,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067347766] [2023-12-25 07:11:10,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:10,576 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 [2023-12-25 07:11:10,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:10,578 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:11:10,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 07:11:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:10,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:11:10,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:10,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:10,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:10,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067347766] [2023-12-25 07:11:10,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067347766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:10,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:10,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:11:10,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008332904] [2023-12-25 07:11:10,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:10,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:11:10,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:11:10,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:11:10,725 INFO L87 Difference]: Start difference. First operand 4738 states and 7021 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:11,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:11,160 INFO L93 Difference]: Finished difference Result 12476 states and 18451 transitions. [2023-12-25 07:11:11,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 07:11:11,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-25 07:11:11,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:11,179 INFO L225 Difference]: With dead ends: 12476 [2023-12-25 07:11:11,179 INFO L226 Difference]: Without dead ends: 9071 [2023-12-25 07:11:11,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-25 07:11:11,185 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 1087 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:11,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 3334 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:11:11,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9071 states. [2023-12-25 07:11:11,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9071 to 6356. [2023-12-25 07:11:11,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6356 states, 6350 states have (on average 1.4737007874015748) internal successors, (9358), 6354 states have internal predecessors, (9358), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6356 states to 6356 states and 9363 transitions. [2023-12-25 07:11:11,382 INFO L78 Accepts]: Start accepts. Automaton has 6356 states and 9363 transitions. Word has length 63 [2023-12-25 07:11:11,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:11,382 INFO L495 AbstractCegarLoop]: Abstraction has 6356 states and 9363 transitions. [2023-12-25 07:11:11,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:11,382 INFO L276 IsEmpty]: Start isEmpty. Operand 6356 states and 9363 transitions. [2023-12-25 07:11:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 07:11:11,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:11,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:11,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:11,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:11:11,587 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:11,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:11,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1376857847, now seen corresponding path program 1 times [2023-12-25 07:11:11,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:11,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868240577] [2023-12-25 07:11:11,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:11,588 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 [2023-12-25 07:11:11,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:11,589 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:11:11,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 07:11:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:11,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:11,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:11:11,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:11,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:11,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868240577] [2023-12-25 07:11:11,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868240577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:11,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:11,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:11:11,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389798920] [2023-12-25 07:11:11,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:11,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:11,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:11,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:11,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:11,680 INFO L87 Difference]: Start difference. First operand 6356 states and 9363 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:11,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:11,830 INFO L93 Difference]: Finished difference Result 10200 states and 15250 transitions. [2023-12-25 07:11:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:11,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-25 07:11:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:11,837 INFO L225 Difference]: With dead ends: 10200 [2023-12-25 07:11:11,837 INFO L226 Difference]: Without dead ends: 3900 [2023-12-25 07:11:11,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:11,841 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 336 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:11,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 621 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:11:11,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2023-12-25 07:11:11,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3530. [2023-12-25 07:11:11,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 3524 states have (on average 1.5173098751418843) internal successors, (5347), 3528 states have internal predecessors, (5347), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:11,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 5352 transitions. [2023-12-25 07:11:11,927 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 5352 transitions. Word has length 96 [2023-12-25 07:11:11,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:11,927 INFO L495 AbstractCegarLoop]: Abstraction has 3530 states and 5352 transitions. [2023-12-25 07:11:11,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:11,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 5352 transitions. [2023-12-25 07:11:11,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:11:11,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:11,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:11,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:12,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:11:12,134 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:12,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:12,134 INFO L85 PathProgramCache]: Analyzing trace with hash -555824062, now seen corresponding path program 1 times [2023-12-25 07:11:12,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:12,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236888948] [2023-12-25 07:11:12,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:12,135 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 [2023-12-25 07:11:12,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:12,149 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:11:12,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 07:11:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:12,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:12,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-25 07:11:12,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:12,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:12,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236888948] [2023-12-25 07:11:12,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236888948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:12,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:12,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:11:12,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898510031] [2023-12-25 07:11:12,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:12,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:12,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:12,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:12,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:12,268 INFO L87 Difference]: Start difference. First operand 3530 states and 5352 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:12,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:12,460 INFO L93 Difference]: Finished difference Result 8715 states and 13160 transitions. [2023-12-25 07:11:12,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:12,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 07:11:12,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:12,468 INFO L225 Difference]: With dead ends: 8715 [2023-12-25 07:11:12,468 INFO L226 Difference]: Without dead ends: 5103 [2023-12-25 07:11:12,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:12,472 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 278 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:12,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 910 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:12,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5103 states. [2023-12-25 07:11:12,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5103 to 5039. [2023-12-25 07:11:12,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5039 states, 5033 states have (on average 1.5014901649115835) internal successors, (7557), 5037 states have internal predecessors, (7557), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5039 states to 5039 states and 7562 transitions. [2023-12-25 07:11:12,593 INFO L78 Accepts]: Start accepts. Automaton has 5039 states and 7562 transitions. Word has length 135 [2023-12-25 07:11:12,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:12,593 INFO L495 AbstractCegarLoop]: Abstraction has 5039 states and 7562 transitions. [2023-12-25 07:11:12,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:12,593 INFO L276 IsEmpty]: Start isEmpty. Operand 5039 states and 7562 transitions. [2023-12-25 07:11:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 07:11:12,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:12,597 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:12,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-25 07:11:12,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:11:12,801 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:12,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:12,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1177905419, now seen corresponding path program 1 times [2023-12-25 07:11:12,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:12,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164748396] [2023-12-25 07:11:12,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:12,802 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 [2023-12-25 07:11:12,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:12,803 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:11:12,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 07:11:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:12,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:12,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:12,911 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 07:11:12,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:12,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:12,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164748396] [2023-12-25 07:11:12,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164748396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:12,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:12,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:11:12,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287949144] [2023-12-25 07:11:12,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:12,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:12,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:12,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:12,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:12,912 INFO L87 Difference]: Start difference. First operand 5039 states and 7562 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:13,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:13,237 INFO L93 Difference]: Finished difference Result 13183 states and 19661 transitions. [2023-12-25 07:11:13,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:13,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2023-12-25 07:11:13,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:13,252 INFO L225 Difference]: With dead ends: 13183 [2023-12-25 07:11:13,253 INFO L226 Difference]: Without dead ends: 8245 [2023-12-25 07:11:13,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:13,261 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 340 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:13,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 990 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:13,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2023-12-25 07:11:13,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 8196. [2023-12-25 07:11:13,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8196 states, 8190 states have (on average 1.433943833943834) internal successors, (11744), 8194 states have internal predecessors, (11744), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:13,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8196 states to 8196 states and 11749 transitions. [2023-12-25 07:11:13,493 INFO L78 Accepts]: Start accepts. Automaton has 8196 states and 11749 transitions. Word has length 143 [2023-12-25 07:11:13,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:13,493 INFO L495 AbstractCegarLoop]: Abstraction has 8196 states and 11749 transitions. [2023-12-25 07:11:13,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:13,493 INFO L276 IsEmpty]: Start isEmpty. Operand 8196 states and 11749 transitions. [2023-12-25 07:11:13,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 07:11:13,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:13,500 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:13,504 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 (16)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:13,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:11:13,704 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:13,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:13,704 INFO L85 PathProgramCache]: Analyzing trace with hash -312566853, now seen corresponding path program 1 times [2023-12-25 07:11:13,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:13,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719737928] [2023-12-25 07:11:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:13,705 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 [2023-12-25 07:11:13,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:13,706 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:11:13,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 07:11:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:13,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:13,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:13,819 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-25 07:11:13,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:13,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:13,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719737928] [2023-12-25 07:11:13,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719737928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:13,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:13,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:11:13,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422025866] [2023-12-25 07:11:13,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:13,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:13,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:13,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:13,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:13,820 INFO L87 Difference]: Start difference. First operand 8196 states and 11749 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:14,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:14,040 INFO L93 Difference]: Finished difference Result 11874 states and 17190 transitions. [2023-12-25 07:11:14,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:14,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2023-12-25 07:11:14,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:14,047 INFO L225 Difference]: With dead ends: 11874 [2023-12-25 07:11:14,047 INFO L226 Difference]: Without dead ends: 3627 [2023-12-25 07:11:14,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:14,053 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 327 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:14,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 497 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:14,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2023-12-25 07:11:14,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3572. [2023-12-25 07:11:14,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3572 states, 3566 states have (on average 1.367638810992709) internal successors, (4877), 3570 states have internal predecessors, (4877), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 4882 transitions. [2023-12-25 07:11:14,143 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 4882 transitions. Word has length 144 [2023-12-25 07:11:14,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:14,143 INFO L495 AbstractCegarLoop]: Abstraction has 3572 states and 4882 transitions. [2023-12-25 07:11:14,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:14,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 4882 transitions. [2023-12-25 07:11:14,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-25 07:11:14,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:14,145 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:14,164 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 (17)] Ended with exit code 0 [2023-12-25 07:11:14,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:11:14,349 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:14,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:14,350 INFO L85 PathProgramCache]: Analyzing trace with hash 673719498, now seen corresponding path program 1 times [2023-12-25 07:11:14,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:14,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384501186] [2023-12-25 07:11:14,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:14,350 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 [2023-12-25 07:11:14,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:14,351 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-12-25 07:11:14,353 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 (18)] Waiting until timeout for monitored process [2023-12-25 07:11:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:14,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:14,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:14,484 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 07:11:14,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:14,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:14,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384501186] [2023-12-25 07:11:14,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384501186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:14,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:14,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:11:14,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45462058] [2023-12-25 07:11:14,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:14,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:14,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:14,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:14,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:14,485 INFO L87 Difference]: Start difference. First operand 3572 states and 4882 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:14,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:14,602 INFO L93 Difference]: Finished difference Result 6344 states and 8697 transitions. [2023-12-25 07:11:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:14,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2023-12-25 07:11:14,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:14,606 INFO L225 Difference]: With dead ends: 6344 [2023-12-25 07:11:14,606 INFO L226 Difference]: Without dead ends: 2808 [2023-12-25 07:11:14,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:14,608 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 256 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:14,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 391 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:11:14,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2023-12-25 07:11:14,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2624. [2023-12-25 07:11:14,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 2618 states have (on average 1.3414820473644002) internal successors, (3512), 2622 states have internal predecessors, (3512), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:14,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 3517 transitions. [2023-12-25 07:11:14,668 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 3517 transitions. Word has length 150 [2023-12-25 07:11:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:14,668 INFO L495 AbstractCegarLoop]: Abstraction has 2624 states and 3517 transitions. [2023-12-25 07:11:14,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:14,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 3517 transitions. [2023-12-25 07:11:14,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 07:11:14,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:14,670 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:14,690 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 (18)] Ended with exit code 0 [2023-12-25 07:11:14,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2023-12-25 07:11:14,873 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:14,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:14,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1981582076, now seen corresponding path program 1 times [2023-12-25 07:11:14,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:14,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053466924] [2023-12-25 07:11:14,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:14,874 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 [2023-12-25 07:11:14,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:14,875 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-12-25 07:11:14,903 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 (19)] Waiting until timeout for monitored process [2023-12-25 07:11:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:14,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 07:11:14,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 07:11:15,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 07:11:15,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:15,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053466924] [2023-12-25 07:11:15,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053466924] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:15,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:15,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-25 07:11:15,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689798105] [2023-12-25 07:11:15,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:15,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 07:11:15,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:15,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 07:11:15,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 07:11:15,217 INFO L87 Difference]: Start difference. First operand 2624 states and 3517 transitions. Second operand has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:15,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:15,649 INFO L93 Difference]: Finished difference Result 8083 states and 10966 transitions. [2023-12-25 07:11:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 07:11:15,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2023-12-25 07:11:15,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:15,657 INFO L225 Difference]: With dead ends: 8083 [2023-12-25 07:11:15,657 INFO L226 Difference]: Without dead ends: 5647 [2023-12-25 07:11:15,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-25 07:11:15,659 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1733 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:15,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 2756 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:11:15,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5647 states. [2023-12-25 07:11:15,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5647 to 4801. [2023-12-25 07:11:15,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4801 states, 4795 states have (on average 1.3549530761209594) internal successors, (6497), 4799 states have internal predecessors, (6497), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4801 states to 4801 states and 6502 transitions. [2023-12-25 07:11:15,791 INFO L78 Accepts]: Start accepts. Automaton has 4801 states and 6502 transitions. Word has length 153 [2023-12-25 07:11:15,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:15,791 INFO L495 AbstractCegarLoop]: Abstraction has 4801 states and 6502 transitions. [2023-12-25 07:11:15,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:15,791 INFO L276 IsEmpty]: Start isEmpty. Operand 4801 states and 6502 transitions. [2023-12-25 07:11:15,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-25 07:11:15,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:15,792 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:15,805 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 (19)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:15,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 [2023-12-25 07:11:15,995 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:15,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:15,996 INFO L85 PathProgramCache]: Analyzing trace with hash 512092272, now seen corresponding path program 1 times [2023-12-25 07:11:15,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:15,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52155392] [2023-12-25 07:11:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:15,996 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 [2023-12-25 07:11:15,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:15,997 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-12-25 07:11:16,014 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 (20)] Waiting until timeout for monitored process [2023-12-25 07:11:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:16,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 07:11:16,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:16,246 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 07:11:16,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:16,372 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 07:11:16,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:16,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52155392] [2023-12-25 07:11:16,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52155392] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:16,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:16,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-12-25 07:11:16,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147094836] [2023-12-25 07:11:16,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:16,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 07:11:16,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:16,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 07:11:16,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 07:11:16,374 INFO L87 Difference]: Start difference. First operand 4801 states and 6502 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:16,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:16,812 INFO L93 Difference]: Finished difference Result 9816 states and 13293 transitions. [2023-12-25 07:11:16,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:11:16,812 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2023-12-25 07:11:16,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:16,818 INFO L225 Difference]: With dead ends: 9816 [2023-12-25 07:11:16,818 INFO L226 Difference]: Without dead ends: 5203 [2023-12-25 07:11:16,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-12-25 07:11:16,822 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 926 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 3839 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:16,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 3839 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:11:16,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5203 states. [2023-12-25 07:11:16,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5203 to 4805. [2023-12-25 07:11:16,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4805 states, 4799 states have (on average 1.3546572202542195) internal successors, (6501), 4803 states have internal predecessors, (6501), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4805 states to 4805 states and 6506 transitions. [2023-12-25 07:11:16,940 INFO L78 Accepts]: Start accepts. Automaton has 4805 states and 6506 transitions. Word has length 156 [2023-12-25 07:11:16,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:16,941 INFO L495 AbstractCegarLoop]: Abstraction has 4805 states and 6506 transitions. [2023-12-25 07:11:16,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:16,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4805 states and 6506 transitions. [2023-12-25 07:11:16,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-12-25 07:11:16,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:16,958 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:16,980 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 (20)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:17,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2023-12-25 07:11:17,161 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:17,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:17,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1812968908, now seen corresponding path program 1 times [2023-12-25 07:11:17,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:17,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323353090] [2023-12-25 07:11:17,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:17,162 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 [2023-12-25 07:11:17,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:17,163 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-12-25 07:11:17,186 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 (21)] Waiting until timeout for monitored process [2023-12-25 07:11:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:17,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:11:17,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 10 proven. 187 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 07:11:17,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:17,793 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 10 proven. 187 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 07:11:17,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:17,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323353090] [2023-12-25 07:11:17,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323353090] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:17,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:17,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2023-12-25 07:11:17,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099599325] [2023-12-25 07:11:17,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:17,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 07:11:17,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:17,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 07:11:17,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-25 07:11:17,795 INFO L87 Difference]: Start difference. First operand 4805 states and 6506 transitions. Second operand has 11 states, 11 states have (on average 22.272727272727273) internal successors, (245), 11 states have internal predecessors, (245), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:18,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:18,533 INFO L93 Difference]: Finished difference Result 10140 states and 13681 transitions. [2023-12-25 07:11:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-25 07:11:18,534 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.272727272727273) internal successors, (245), 11 states have internal predecessors, (245), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 251 [2023-12-25 07:11:18,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:18,539 INFO L225 Difference]: With dead ends: 10140 [2023-12-25 07:11:18,539 INFO L226 Difference]: Without dead ends: 5523 [2023-12-25 07:11:18,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2023-12-25 07:11:18,544 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 1442 mSDsluCounter, 6825 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 7749 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:18,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 7749 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:11:18,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5523 states. [2023-12-25 07:11:18,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5523 to 4954. [2023-12-25 07:11:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4954 states, 4948 states have (on average 1.350848827809216) internal successors, (6684), 4952 states have internal predecessors, (6684), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 6689 transitions. [2023-12-25 07:11:18,699 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 6689 transitions. Word has length 251 [2023-12-25 07:11:18,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:18,700 INFO L495 AbstractCegarLoop]: Abstraction has 4954 states and 6689 transitions. [2023-12-25 07:11:18,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.272727272727273) internal successors, (245), 11 states have internal predecessors, (245), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 6689 transitions. [2023-12-25 07:11:18,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-12-25 07:11:18,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:18,702 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:18,716 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 (21)] Ended with exit code 0 [2023-12-25 07:11:18,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2023-12-25 07:11:18,907 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:18,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:18,907 INFO L85 PathProgramCache]: Analyzing trace with hash -2046780617, now seen corresponding path program 1 times [2023-12-25 07:11:18,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:18,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158784966] [2023-12-25 07:11:18,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:18,908 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 [2023-12-25 07:11:18,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:18,909 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-25 07:11:18,932 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 (22)] Waiting until timeout for monitored process [2023-12-25 07:11:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:19,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 07:11:19,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 63 proven. 303 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 07:11:19,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 63 proven. 303 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 07:11:19,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:19,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158784966] [2023-12-25 07:11:19,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158784966] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:19,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:19,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 07:11:19,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106499530] [2023-12-25 07:11:19,798 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:19,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:11:19,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:19,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:11:19,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:11:19,800 INFO L87 Difference]: Start difference. First operand 4954 states and 6689 transitions. Second operand has 16 states, 16 states have (on average 38.3125) internal successors, (613), 16 states have internal predecessors, (613), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:20,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:20,612 INFO L93 Difference]: Finished difference Result 11484 states and 15552 transitions. [2023-12-25 07:11:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:11:20,612 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 38.3125) internal successors, (613), 16 states have internal predecessors, (613), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2023-12-25 07:11:20,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:20,620 INFO L225 Difference]: With dead ends: 11484 [2023-12-25 07:11:20,621 INFO L226 Difference]: Without dead ends: 6718 [2023-12-25 07:11:20,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2023-12-25 07:11:20,628 INFO L413 NwaCegarLoop]: 1220 mSDtfsCounter, 4583 mSDsluCounter, 8567 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4583 SdHoareTripleChecker+Valid, 9787 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:20,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4583 Valid, 9787 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:11:20,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6718 states. [2023-12-25 07:11:20,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6718 to 5929. [2023-12-25 07:11:20,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5929 states, 5923 states have (on average 1.3542123923687321) internal successors, (8021), 5927 states have internal predecessors, (8021), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:20,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5929 states to 5929 states and 8026 transitions. [2023-12-25 07:11:20,856 INFO L78 Accepts]: Start accepts. Automaton has 5929 states and 8026 transitions. Word has length 344 [2023-12-25 07:11:20,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:20,856 INFO L495 AbstractCegarLoop]: Abstraction has 5929 states and 8026 transitions. [2023-12-25 07:11:20,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 38.3125) internal successors, (613), 16 states have internal predecessors, (613), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:20,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5929 states and 8026 transitions. [2023-12-25 07:11:20,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-25 07:11:20,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:20,859 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:20,880 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 (22)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:21,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-25 07:11:21,065 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:21,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:21,065 INFO L85 PathProgramCache]: Analyzing trace with hash -492424867, now seen corresponding path program 1 times [2023-12-25 07:11:21,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:21,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698754592] [2023-12-25 07:11:21,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:21,066 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 [2023-12-25 07:11:21,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:21,067 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-12-25 07:11:21,070 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 (23)] Waiting until timeout for monitored process [2023-12-25 07:11:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:21,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 07:11:21,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:21,578 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 15 proven. 436 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 07:11:21,578 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:21,893 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 15 proven. 436 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 07:11:21,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:21,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1698754592] [2023-12-25 07:11:21,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1698754592] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:21,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:21,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2023-12-25 07:11:21,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202337366] [2023-12-25 07:11:21,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:21,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 07:11:21,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:21,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 07:11:21,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-12-25 07:11:21,896 INFO L87 Difference]: Start difference. First operand 5929 states and 8026 transitions. Second operand has 13 states, 13 states have (on average 26.076923076923077) internal successors, (339), 13 states have internal predecessors, (339), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:22,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:22,988 INFO L93 Difference]: Finished difference Result 12471 states and 16829 transitions. [2023-12-25 07:11:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-25 07:11:22,989 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 26.076923076923077) internal successors, (339), 13 states have internal predecessors, (339), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 347 [2023-12-25 07:11:22,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:22,994 INFO L225 Difference]: With dead ends: 12471 [2023-12-25 07:11:22,994 INFO L226 Difference]: Without dead ends: 6730 [2023-12-25 07:11:22,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930 [2023-12-25 07:11:22,997 INFO L413 NwaCegarLoop]: 1315 mSDtfsCounter, 2002 mSDsluCounter, 12271 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2002 SdHoareTripleChecker+Valid, 13586 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:22,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2002 Valid, 13586 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:11:23,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2023-12-25 07:11:23,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6080. [2023-12-25 07:11:23,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6080 states, 6074 states have (on average 1.3510042805400067) internal successors, (8206), 6078 states have internal predecessors, (8206), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:23,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6080 states to 6080 states and 8211 transitions. [2023-12-25 07:11:23,159 INFO L78 Accepts]: Start accepts. Automaton has 6080 states and 8211 transitions. Word has length 347 [2023-12-25 07:11:23,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:23,159 INFO L495 AbstractCegarLoop]: Abstraction has 6080 states and 8211 transitions. [2023-12-25 07:11:23,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 26.076923076923077) internal successors, (339), 13 states have internal predecessors, (339), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:23,159 INFO L276 IsEmpty]: Start isEmpty. Operand 6080 states and 8211 transitions. [2023-12-25 07:11:23,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2023-12-25 07:11:23,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:23,162 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:23,181 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 (23)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:23,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2023-12-25 07:11:23,367 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:23,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:23,368 INFO L85 PathProgramCache]: Analyzing trace with hash -431584582, now seen corresponding path program 1 times [2023-12-25 07:11:23,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:23,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082609128] [2023-12-25 07:11:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:23,368 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 [2023-12-25 07:11:23,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:23,369 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-12-25 07:11:23,396 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 (24)] Waiting until timeout for monitored process [2023-12-25 07:11:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:23,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:11:23,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:23,547 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-12-25 07:11:23,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:23,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:23,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082609128] [2023-12-25 07:11:23,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082609128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:23,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:23,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:11:23,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090599269] [2023-12-25 07:11:23,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:23,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:11:23,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:23,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:11:23,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:23,553 INFO L87 Difference]: Start difference. First operand 6080 states and 8211 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:23,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:23,744 INFO L93 Difference]: Finished difference Result 8061 states and 10796 transitions. [2023-12-25 07:11:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:11:23,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 441 [2023-12-25 07:11:23,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:23,747 INFO L225 Difference]: With dead ends: 8061 [2023-12-25 07:11:23,747 INFO L226 Difference]: Without dead ends: 1863 [2023-12-25 07:11:23,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:11:23,750 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 139 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:23,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 374 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2023-12-25 07:11:23,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1253. [2023-12-25 07:11:23,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1249 states have (on average 1.1016813450760607) internal successors, (1376), 1251 states have internal predecessors, (1376), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:23,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1379 transitions. [2023-12-25 07:11:23,789 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1379 transitions. Word has length 441 [2023-12-25 07:11:23,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:23,789 INFO L495 AbstractCegarLoop]: Abstraction has 1253 states and 1379 transitions. [2023-12-25 07:11:23,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:23,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1379 transitions. [2023-12-25 07:11:23,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2023-12-25 07:11:23,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:23,792 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:23,814 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 (24)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:23,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 [2023-12-25 07:11:23,997 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:23,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:23,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1294036730, now seen corresponding path program 1 times [2023-12-25 07:11:23,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:23,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811982634] [2023-12-25 07:11:23,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:23,999 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 [2023-12-25 07:11:23,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:24,000 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-12-25 07:11:24,023 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 (25)] Waiting until timeout for monitored process [2023-12-25 07:11:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:24,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:11:24,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 201 proven. 609 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-25 07:11:24,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:25,207 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 201 proven. 609 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-25 07:11:25,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:25,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811982634] [2023-12-25 07:11:25,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811982634] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:25,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:25,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-25 07:11:25,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444889554] [2023-12-25 07:11:25,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:25,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-25 07:11:25,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:25,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-25 07:11:25,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2023-12-25 07:11:25,210 INFO L87 Difference]: Start difference. First operand 1253 states and 1379 transitions. Second operand has 20 states, 20 states have (on average 40.3) internal successors, (806), 20 states have internal predecessors, (806), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:25,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:25,757 INFO L93 Difference]: Finished difference Result 2206 states and 2469 transitions. [2023-12-25 07:11:25,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 07:11:25,757 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 40.3) internal successors, (806), 20 states have internal predecessors, (806), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 444 [2023-12-25 07:11:25,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:25,759 INFO L225 Difference]: With dead ends: 2206 [2023-12-25 07:11:25,759 INFO L226 Difference]: Without dead ends: 1788 [2023-12-25 07:11:25,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 895 GetRequests, 868 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=665, Unknown=0, NotChecked=0, Total=812 [2023-12-25 07:11:25,761 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 1274 mSDsluCounter, 7966 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 8758 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:25,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 8758 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:11:25,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2023-12-25 07:11:25,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1759. [2023-12-25 07:11:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1759 states, 1755 states have (on average 1.1196581196581197) internal successors, (1965), 1757 states have internal predecessors, (1965), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 1968 transitions. [2023-12-25 07:11:25,864 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 1968 transitions. Word has length 444 [2023-12-25 07:11:25,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:25,864 INFO L495 AbstractCegarLoop]: Abstraction has 1759 states and 1968 transitions. [2023-12-25 07:11:25,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 40.3) internal successors, (806), 20 states have internal predecessors, (806), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:25,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 1968 transitions. [2023-12-25 07:11:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2023-12-25 07:11:25,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:25,881 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:25,888 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 (25)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:26,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 [2023-12-25 07:11:26,087 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:26,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:26,087 INFO L85 PathProgramCache]: Analyzing trace with hash -782781155, now seen corresponding path program 1 times [2023-12-25 07:11:26,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:26,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647655333] [2023-12-25 07:11:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:26,088 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 [2023-12-25 07:11:26,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:26,089 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-12-25 07:11:26,097 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 (26)] Waiting until timeout for monitored process [2023-12-25 07:11:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:26,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:11:26,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:26,370 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-12-25 07:11:26,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:26,371 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:26,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647655333] [2023-12-25 07:11:26,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647655333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:26,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:26,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:11:26,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343758124] [2023-12-25 07:11:26,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:26,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:11:26,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:26,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:11:26,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:11:26,372 INFO L87 Difference]: Start difference. First operand 1759 states and 1968 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:26,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:26,566 INFO L93 Difference]: Finished difference Result 2495 states and 2808 transitions. [2023-12-25 07:11:26,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 07:11:26,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 446 [2023-12-25 07:11:26,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:26,568 INFO L225 Difference]: With dead ends: 2495 [2023-12-25 07:11:26,568 INFO L226 Difference]: Without dead ends: 1772 [2023-12-25 07:11:26,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:11:26,569 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 226 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:26,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1424 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:26,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2023-12-25 07:11:26,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1753. [2023-12-25 07:11:26,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1753 states, 1749 states have (on average 1.115494568324757) internal successors, (1951), 1751 states have internal predecessors, (1951), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:26,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 1954 transitions. [2023-12-25 07:11:26,624 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 1954 transitions. Word has length 446 [2023-12-25 07:11:26,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:26,624 INFO L495 AbstractCegarLoop]: Abstraction has 1753 states and 1954 transitions. [2023-12-25 07:11:26,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:26,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 1954 transitions. [2023-12-25 07:11:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2023-12-25 07:11:26,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:26,627 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:26,634 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 (26)] Ended with exit code 0 [2023-12-25 07:11:26,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 [2023-12-25 07:11:26,832 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:26,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:26,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1528078224, now seen corresponding path program 1 times [2023-12-25 07:11:26,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:26,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086866324] [2023-12-25 07:11:26,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:26,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:11:26,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:26,835 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-25 07:11:26,837 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 (27)] Waiting until timeout for monitored process [2023-12-25 07:11:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:27,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:11:27,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-12-25 07:11:27,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:11:27,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:27,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086866324] [2023-12-25 07:11:27,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086866324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:11:27,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:11:27,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 07:11:27,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318907575] [2023-12-25 07:11:27,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:11:27,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:11:27,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:27,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:11:27,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:11:27,089 INFO L87 Difference]: Start difference. First operand 1753 states and 1954 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:27,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:27,204 INFO L93 Difference]: Finished difference Result 2443 states and 2719 transitions. [2023-12-25 07:11:27,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 07:11:27,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 447 [2023-12-25 07:11:27,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:27,206 INFO L225 Difference]: With dead ends: 2443 [2023-12-25 07:11:27,206 INFO L226 Difference]: Without dead ends: 1716 [2023-12-25 07:11:27,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:11:27,207 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 181 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:27,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 804 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:27,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2023-12-25 07:11:27,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1704. [2023-12-25 07:11:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1701 states have (on average 1.0905349794238683) internal successors, (1855), 1702 states have internal predecessors, (1855), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:27,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 1857 transitions. [2023-12-25 07:11:27,263 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 1857 transitions. Word has length 447 [2023-12-25 07:11:27,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:27,263 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 1857 transitions. [2023-12-25 07:11:27,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:27,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 1857 transitions. [2023-12-25 07:11:27,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-25 07:11:27,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:27,266 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:27,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:27,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 [2023-12-25 07:11:27,472 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:27,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:27,472 INFO L85 PathProgramCache]: Analyzing trace with hash 724651279, now seen corresponding path program 1 times [2023-12-25 07:11:27,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:27,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504139710] [2023-12-25 07:11:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:27,473 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 [2023-12-25 07:11:27,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:27,474 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-25 07:11:27,475 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 (28)] Waiting until timeout for monitored process [2023-12-25 07:11:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:27,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 07:11:27,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:28,428 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 93 proven. 253 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2023-12-25 07:11:28,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 25 proven. 321 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2023-12-25 07:11:29,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:29,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504139710] [2023-12-25 07:11:29,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504139710] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:29,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:29,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 24 [2023-12-25 07:11:29,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408094086] [2023-12-25 07:11:29,136 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:29,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 07:11:29,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:29,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 07:11:29,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2023-12-25 07:11:29,138 INFO L87 Difference]: Start difference. First operand 1704 states and 1857 transitions. Second operand has 24 states, 24 states have (on average 15.0) internal successors, (360), 24 states have internal predecessors, (360), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:29,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:29,933 INFO L93 Difference]: Finished difference Result 1718 states and 1870 transitions. [2023-12-25 07:11:29,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-25 07:11:29,934 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 15.0) internal successors, (360), 24 states have internal predecessors, (360), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 501 [2023-12-25 07:11:29,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:29,936 INFO L225 Difference]: With dead ends: 1718 [2023-12-25 07:11:29,936 INFO L226 Difference]: Without dead ends: 1715 [2023-12-25 07:11:29,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1019 GetRequests, 980 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=191, Invalid=1449, Unknown=0, NotChecked=0, Total=1640 [2023-12-25 07:11:29,937 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 668 mSDsluCounter, 6469 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 6869 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:29,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 6869 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:11:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-12-25 07:11:29,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1704. [2023-12-25 07:11:29,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1701 states have (on average 1.08994708994709) internal successors, (1854), 1702 states have internal predecessors, (1854), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 1856 transitions. [2023-12-25 07:11:29,998 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 1856 transitions. Word has length 501 [2023-12-25 07:11:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:29,999 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 1856 transitions. [2023-12-25 07:11:29,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.0) internal successors, (360), 24 states have internal predecessors, (360), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:29,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 1856 transitions. [2023-12-25 07:11:30,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2023-12-25 07:11:30,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:30,002 INFO L195 NwaCegarLoop]: trace histogram [11, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:30,011 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:30,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 [2023-12-25 07:11:30,209 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:30,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:30,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1933207870, now seen corresponding path program 1 times [2023-12-25 07:11:30,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:30,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474337305] [2023-12-25 07:11:30,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:30,211 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 [2023-12-25 07:11:30,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:30,211 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-25 07:11:30,213 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 (29)] Waiting until timeout for monitored process [2023-12-25 07:11:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:30,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 07:11:30,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:30,618 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 271 proven. 45 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2023-12-25 07:11:30,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:30,726 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 271 proven. 45 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2023-12-25 07:11:30,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:30,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474337305] [2023-12-25 07:11:30,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474337305] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:30,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:30,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-12-25 07:11:30,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004776119] [2023-12-25 07:11:30,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:30,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 07:11:30,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:30,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 07:11:30,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 07:11:30,728 INFO L87 Difference]: Start difference. First operand 1704 states and 1856 transitions. Second operand has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:30,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:30,983 INFO L93 Difference]: Finished difference Result 2205 states and 2403 transitions. [2023-12-25 07:11:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 07:11:30,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 547 [2023-12-25 07:11:30,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:30,985 INFO L225 Difference]: With dead ends: 2205 [2023-12-25 07:11:30,985 INFO L226 Difference]: Without dead ends: 1715 [2023-12-25 07:11:30,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1088 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:11:30,986 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 396 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:30,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 2382 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:11:30,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-12-25 07:11:31,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1700. [2023-12-25 07:11:31,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1697 states have (on average 1.0854449027695934) internal successors, (1842), 1698 states have internal predecessors, (1842), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:31,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 1844 transitions. [2023-12-25 07:11:31,049 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 1844 transitions. Word has length 547 [2023-12-25 07:11:31,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:31,049 INFO L495 AbstractCegarLoop]: Abstraction has 1700 states and 1844 transitions. [2023-12-25 07:11:31,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:31,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 1844 transitions. [2023-12-25 07:11:31,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2023-12-25 07:11:31,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:31,053 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:31,072 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 (29)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:31,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 [2023-12-25 07:11:31,259 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:31,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:31,259 INFO L85 PathProgramCache]: Analyzing trace with hash -434578402, now seen corresponding path program 1 times [2023-12-25 07:11:31,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:31,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110064977] [2023-12-25 07:11:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:31,260 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 [2023-12-25 07:11:31,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:31,261 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-25 07:11:31,267 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 (30)] Waiting until timeout for monitored process [2023-12-25 07:11:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:31,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-25 07:11:31,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 235 proven. 663 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-25 07:11:32,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:33,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 30 proven. 868 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-25 07:11:33,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:33,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110064977] [2023-12-25 07:11:33,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110064977] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:33,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:33,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 30 [2023-12-25 07:11:33,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319350541] [2023-12-25 07:11:33,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:33,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-25 07:11:33,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:33,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-25 07:11:33,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2023-12-25 07:11:33,330 INFO L87 Difference]: Start difference. First operand 1700 states and 1844 transitions. Second operand has 30 states, 30 states have (on average 21.633333333333333) internal successors, (649), 30 states have internal predecessors, (649), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:34,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:34,546 INFO L93 Difference]: Finished difference Result 1713 states and 1856 transitions. [2023-12-25 07:11:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-25 07:11:34,547 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 21.633333333333333) internal successors, (649), 30 states have internal predecessors, (649), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 603 [2023-12-25 07:11:34,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:34,548 INFO L225 Difference]: With dead ends: 1713 [2023-12-25 07:11:34,548 INFO L226 Difference]: Without dead ends: 1710 [2023-12-25 07:11:34,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1229 GetRequests, 1178 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=265, Invalid=2491, Unknown=0, NotChecked=0, Total=2756 [2023-12-25 07:11:34,550 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 1060 mSDsluCounter, 12403 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 12997 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:34,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 12997 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:11:34,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2023-12-25 07:11:34,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1700. [2023-12-25 07:11:34,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1697 states have (on average 1.084855627578079) internal successors, (1841), 1698 states have internal predecessors, (1841), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 1843 transitions. [2023-12-25 07:11:34,612 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 1843 transitions. Word has length 603 [2023-12-25 07:11:34,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:34,612 INFO L495 AbstractCegarLoop]: Abstraction has 1700 states and 1843 transitions. [2023-12-25 07:11:34,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 21.633333333333333) internal successors, (649), 30 states have internal predecessors, (649), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:34,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 1843 transitions. [2023-12-25 07:11:34,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2023-12-25 07:11:34,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:34,616 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:34,623 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 (30)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:34,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 [2023-12-25 07:11:34,822 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:34,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:34,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1332213261, now seen corresponding path program 1 times [2023-12-25 07:11:34,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:34,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150808157] [2023-12-25 07:11:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:34,824 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 [2023-12-25 07:11:34,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:34,825 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-25 07:11:34,848 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 (31)] Waiting until timeout for monitored process [2023-12-25 07:11:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:35,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:11:35,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:35,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 457 proven. 200 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2023-12-25 07:11:35,342 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:35,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 457 proven. 200 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2023-12-25 07:11:35,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:35,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150808157] [2023-12-25 07:11:35,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150808157] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:35,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:35,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2023-12-25 07:11:35,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136611945] [2023-12-25 07:11:35,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:35,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 07:11:35,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:35,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 07:11:35,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-25 07:11:35,577 INFO L87 Difference]: Start difference. First operand 1700 states and 1843 transitions. Second operand has 11 states, 11 states have (on average 33.18181818181818) internal successors, (365), 11 states have internal predecessors, (365), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:35,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:35,947 INFO L93 Difference]: Finished difference Result 2009 states and 2176 transitions. [2023-12-25 07:11:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:11:35,948 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 33.18181818181818) internal successors, (365), 11 states have internal predecessors, (365), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 649 [2023-12-25 07:11:35,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:35,950 INFO L225 Difference]: With dead ends: 2009 [2023-12-25 07:11:35,950 INFO L226 Difference]: Without dead ends: 1715 [2023-12-25 07:11:35,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1310 GetRequests, 1292 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-12-25 07:11:35,951 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 581 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 4342 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:35,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 4342 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:11:35,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-12-25 07:11:36,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1698. [2023-12-25 07:11:36,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1695 states have (on average 1.08023598820059) internal successors, (1831), 1696 states have internal predecessors, (1831), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:36,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 1833 transitions. [2023-12-25 07:11:36,017 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 1833 transitions. Word has length 649 [2023-12-25 07:11:36,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:36,017 INFO L495 AbstractCegarLoop]: Abstraction has 1698 states and 1833 transitions. [2023-12-25 07:11:36,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 33.18181818181818) internal successors, (365), 11 states have internal predecessors, (365), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:36,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 1833 transitions. [2023-12-25 07:11:36,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2023-12-25 07:11:36,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:36,022 INFO L195 NwaCegarLoop]: trace histogram [14, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:36,042 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:36,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-25 07:11:36,228 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:36,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:36,228 INFO L85 PathProgramCache]: Analyzing trace with hash -84862364, now seen corresponding path program 1 times [2023-12-25 07:11:36,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:36,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377431941] [2023-12-25 07:11:36,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:36,229 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 [2023-12-25 07:11:36,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:36,230 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-25 07:11:36,232 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 (32)] Waiting until timeout for monitored process [2023-12-25 07:11:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:36,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-25 07:11:36,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 288 proven. 1174 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-25 07:11:37,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 35 proven. 1427 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-25 07:11:38,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:38,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377431941] [2023-12-25 07:11:38,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377431941] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:38,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:38,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 36 [2023-12-25 07:11:38,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863856574] [2023-12-25 07:11:38,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:38,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:11:38,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:38,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:11:38,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1167, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:11:38,953 INFO L87 Difference]: Start difference. First operand 1698 states and 1833 transitions. Second operand has 36 states, 36 states have (on average 26.22222222222222) internal successors, (944), 36 states have internal predecessors, (944), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:40,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:40,491 INFO L93 Difference]: Finished difference Result 1715 states and 1849 transitions. [2023-12-25 07:11:40,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-25 07:11:40,492 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 26.22222222222222) internal successors, (944), 36 states have internal predecessors, (944), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 706 [2023-12-25 07:11:40,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:40,494 INFO L225 Difference]: With dead ends: 1715 [2023-12-25 07:11:40,494 INFO L226 Difference]: Without dead ends: 1712 [2023-12-25 07:11:40,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1440 GetRequests, 1378 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=328, Invalid=3704, Unknown=0, NotChecked=0, Total=4032 [2023-12-25 07:11:40,496 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 1355 mSDsluCounter, 19868 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 20690 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:40,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 20690 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 07:11:40,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2023-12-25 07:11:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1698. [2023-12-25 07:11:40,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1695 states have (on average 1.079646017699115) internal successors, (1830), 1696 states have internal predecessors, (1830), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:40,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 1832 transitions. [2023-12-25 07:11:40,590 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 1832 transitions. Word has length 706 [2023-12-25 07:11:40,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:40,590 INFO L495 AbstractCegarLoop]: Abstraction has 1698 states and 1832 transitions. [2023-12-25 07:11:40,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 26.22222222222222) internal successors, (944), 36 states have internal predecessors, (944), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:40,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 1832 transitions. [2023-12-25 07:11:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2023-12-25 07:11:40,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:40,596 INFO L195 NwaCegarLoop]: trace histogram [15, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:40,604 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 (32)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:40,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 [2023-12-25 07:11:40,805 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:40,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:40,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1592404435, now seen corresponding path program 1 times [2023-12-25 07:11:40,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:40,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406209334] [2023-12-25 07:11:40,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:40,806 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 [2023-12-25 07:11:40,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:40,807 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-25 07:11:40,860 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 (33)] Waiting until timeout for monitored process [2023-12-25 07:11:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:41,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 07:11:41,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:41,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1767 backedges. 643 proven. 466 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2023-12-25 07:11:41,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1767 backedges. 643 proven. 466 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2023-12-25 07:11:41,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:41,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406209334] [2023-12-25 07:11:41,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406209334] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:41,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:41,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2023-12-25 07:11:41,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130778590] [2023-12-25 07:11:41,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:41,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 07:11:41,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:41,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 07:11:41,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-12-25 07:11:41,842 INFO L87 Difference]: Start difference. First operand 1698 states and 1832 transitions. Second operand has 13 states, 13 states have (on average 35.84615384615385) internal successors, (466), 13 states have internal predecessors, (466), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:42,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:42,412 INFO L93 Difference]: Finished difference Result 1811 states and 1948 transitions. [2023-12-25 07:11:42,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-25 07:11:42,413 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 35.84615384615385) internal successors, (466), 13 states have internal predecessors, (466), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 752 [2023-12-25 07:11:42,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:42,415 INFO L225 Difference]: With dead ends: 1811 [2023-12-25 07:11:42,416 INFO L226 Difference]: Without dead ends: 1713 [2023-12-25 07:11:42,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1520 GetRequests, 1498 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2023-12-25 07:11:42,417 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 758 mSDsluCounter, 6347 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 7025 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:42,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 7025 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:11:42,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2023-12-25 07:11:42,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1697. [2023-12-25 07:11:42,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1695 states have (on average 1.0749262536873156) internal successors, (1822), 1695 states have internal predecessors, (1822), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:42,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 1823 transitions. [2023-12-25 07:11:42,495 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 1823 transitions. Word has length 752 [2023-12-25 07:11:42,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:42,496 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 1823 transitions. [2023-12-25 07:11:42,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 35.84615384615385) internal successors, (466), 13 states have internal predecessors, (466), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:42,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 1823 transitions. [2023-12-25 07:11:42,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2023-12-25 07:11:42,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:11:42,502 INFO L195 NwaCegarLoop]: trace histogram [16, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:11:42,509 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 (33)] Forceful destruction successful, exit code 0 [2023-12-25 07:11:42,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 [2023-12-25 07:11:42,709 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:11:42,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:11:42,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1107816856, now seen corresponding path program 1 times [2023-12-25 07:11:42,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:11:42,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212209026] [2023-12-25 07:11:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:11:42,710 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 [2023-12-25 07:11:42,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:11:42,711 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-25 07:11:42,712 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 (34)] Waiting until timeout for monitored process [2023-12-25 07:11:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:11:43,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-25 07:11:43,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:11:44,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2058 backedges. 249 proven. 1784 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 07:11:44,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:11:45,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2058 backedges. 40 proven. 1993 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 07:11:45,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:11:45,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212209026] [2023-12-25 07:11:45,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212209026] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:11:45,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:11:45,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 42 [2023-12-25 07:11:45,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610448305] [2023-12-25 07:11:45,584 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:11:45,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-25 07:11:45,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:11:45,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-25 07:11:45,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1611, Unknown=0, NotChecked=0, Total=1722 [2023-12-25 07:11:45,586 INFO L87 Difference]: Start difference. First operand 1697 states and 1823 transitions. Second operand has 42 states, 42 states have (on average 28.571428571428573) internal successors, (1200), 42 states have internal predecessors, (1200), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:47,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:11:47,621 INFO L93 Difference]: Finished difference Result 1713 states and 1839 transitions. [2023-12-25 07:11:47,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-25 07:11:47,621 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 28.571428571428573) internal successors, (1200), 42 states have internal predecessors, (1200), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 810 [2023-12-25 07:11:47,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:11:47,630 INFO L225 Difference]: With dead ends: 1713 [2023-12-25 07:11:47,630 INFO L226 Difference]: Without dead ends: 0 [2023-12-25 07:11:47,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1655 GetRequests, 1580 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=406, Invalid=5446, Unknown=0, NotChecked=0, Total=5852 [2023-12-25 07:11:47,633 INFO L413 NwaCegarLoop]: 985 mSDtfsCounter, 1481 mSDsluCounter, 25935 mSDsCounter, 0 mSdLazyCounter, 2526 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 26920 SdHoareTripleChecker+Invalid, 2532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:11:47,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 26920 Invalid, 2532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2526 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 07:11:47,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-25 07:11:47,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-25 07:11:47,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:47,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-25 07:11:47,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 810 [2023-12-25 07:11:47,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:11:47,634 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-25 07:11:47,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 28.571428571428573) internal successors, (1200), 42 states have internal predecessors, (1200), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:11:47,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-25 07:11:47,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-25 07:11:47,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 07:11:47,644 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 (34)] Ended with exit code 0 [2023-12-25 07:11:47,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 [2023-12-25 07:11:47,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-25 07:12:30,608 WARN L293 SmtUtils]: Spent 40.49s on a formula simplification. DAG size of input: 266 DAG size of output: 210 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Received shutdown request... [2023-12-25 07:25:37,830 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-23-12-8-9-7-7-6-7-6-7-6-7-7-7-6-5-7-5-6-5-7-5-7-5-6-5-6-5-6-5-6-5-6-5-6-5-3-5-2-5-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-61-18-8-9-7-8-6-7-7-7-6-7-7-7-6-5-7-5-6-5-7-5-7-5-6-5-6-5-6-5-6-5-6-5-6-5-3-5-2-5-1 context. [2023-12-25 07:25:37,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-25 07:25:37,835 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-25 07:25:37,836 INFO L158 Benchmark]: Toolchain (without parser) took 875309.69ms. Allocated memory was 251.7MB in the beginning and 1.0GB in the end (delta: 785.4MB). Free memory was 208.6MB in the beginning and 514.1MB in the end (delta: -305.5MB). Peak memory consumption was 481.5MB. Max. memory is 8.0GB. [2023-12-25 07:25:37,836 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 189.8MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 07:25:37,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.71ms. Allocated memory is still 251.7MB. Free memory was 208.3MB in the beginning and 185.9MB in the end (delta: 22.4MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-25 07:25:37,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.68ms. Allocated memory is still 251.7MB. Free memory was 185.9MB in the beginning and 182.5MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-25 07:25:37,837 INFO L158 Benchmark]: Boogie Preprocessor took 78.15ms. Allocated memory is still 251.7MB. Free memory was 182.5MB in the beginning and 177.9MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-25 07:25:37,837 INFO L158 Benchmark]: RCFGBuilder took 901.97ms. Allocated memory is still 251.7MB. Free memory was 177.6MB in the beginning and 169.8MB in the end (delta: 7.8MB). Peak memory consumption was 25.7MB. Max. memory is 8.0GB. [2023-12-25 07:25:37,837 INFO L158 Benchmark]: TraceAbstraction took 873876.53ms. Allocated memory was 251.7MB in the beginning and 1.0GB in the end (delta: 785.4MB). Free memory was 169.3MB in the beginning and 514.1MB in the end (delta: -344.8MB). Peak memory consumption was 441.1MB. Max. memory is 8.0GB. [2023-12-25 07:25:37,838 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 189.8MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 377.71ms. Allocated memory is still 251.7MB. Free memory was 208.3MB in the beginning and 185.9MB in the end (delta: 22.4MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.68ms. Allocated memory is still 251.7MB. Free memory was 185.9MB in the beginning and 182.5MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 78.15ms. Allocated memory is still 251.7MB. Free memory was 182.5MB in the beginning and 177.9MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 901.97ms. Allocated memory is still 251.7MB. Free memory was 177.6MB in the beginning and 169.8MB in the end (delta: 7.8MB). Peak memory consumption was 25.7MB. Max. memory is 8.0GB. * TraceAbstraction took 873876.53ms. Allocated memory was 251.7MB in the beginning and 1.0GB in the end (delta: 785.4MB). Free memory was 169.3MB in the beginning and 514.1MB in the end (delta: -344.8MB). Peak memory consumption was 441.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-7-11-3-8-3-6-3-5-2-5-2-7-2-3-2-6-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-16-11-3-8-3-6-3-5-2-5-2-7-2-3-2-6-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown