/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 00:59:41,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 00:59:41,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 00:59:41,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 00:59:41,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 00:59:41,254 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 00:59:41,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 00:59:41,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 00:59:41,255 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 00:59:41,258 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 00:59:41,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 00:59:41,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 00:59:41,259 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 00:59:41,260 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 00:59:41,261 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 00:59:41,261 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 00:59:41,261 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 00:59:41,262 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 00:59:41,262 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 00:59:41,262 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 00:59:41,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 00:59:41,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 00:59:41,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 00:59:41,263 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 00:59:41,263 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 00:59:41,263 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 00:59:41,263 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 00:59:41,263 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 00:59:41,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 00:59:41,263 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 00:59:41,264 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 00:59:41,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 00:59:41,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 00:59:41,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 00:59:41,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:59:41,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 00:59:41,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 00:59:41,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 00:59:41,265 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 00:59:41,265 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 00:59:41,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 00:59:41,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 00:59:41,266 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 00:59:41,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 00:59:41,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 00:59:41,266 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 00:59:41,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 00:59:41,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 00:59:41,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 00:59:41,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 00:59:41,475 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 00:59:41,475 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 00:59:41,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c [2023-12-22 00:59:42,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 00:59:42,885 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 00:59:42,885 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c [2023-12-22 00:59:42,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0377401eb/2956b1ff0c9a464bac6bd6cbdcef5f29/FLAG0f5a4b6a1 [2023-12-22 00:59:42,922 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0377401eb/2956b1ff0c9a464bac6bd6cbdcef5f29 [2023-12-22 00:59:42,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 00:59:42,925 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 00:59:42,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 00:59:42,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 00:59:42,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 00:59:42,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:59:42" (1/1) ... [2023-12-22 00:59:42,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620ed3a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:42, skipping insertion in model container [2023-12-22 00:59:42,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:59:42" (1/1) ... [2023-12-22 00:59:43,019 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 00:59:43,309 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c[11668,11681] [2023-12-22 00:59:43,345 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c[14005,14018] [2023-12-22 00:59:43,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:59:43,929 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 00:59:43,982 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c[11668,11681] [2023-12-22 00:59:43,985 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c[14005,14018] [2023-12-22 00:59:44,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:59:44,267 INFO L206 MainTranslator]: Completed translation [2023-12-22 00:59:44,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44 WrapperNode [2023-12-22 00:59:44,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 00:59:44,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 00:59:44,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 00:59:44,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 00:59:44,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,493 INFO L138 Inliner]: procedures = 38, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5068 [2023-12-22 00:59:44,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 00:59:44,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 00:59:44,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 00:59:44,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 00:59:44,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,534 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,588 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]. [2023-12-22 00:59:44,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,655 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 00:59:44,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 00:59:44,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 00:59:44,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 00:59:44,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (1/1) ... [2023-12-22 00:59:44,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:59:44,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 00:59:44,766 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) [2023-12-22 00:59:44,770 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 [2023-12-22 00:59:44,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 00:59:44,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 00:59:44,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 00:59:44,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 00:59:44,900 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 00:59:44,902 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 01:00:10,044 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 01:00:10,113 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 01:00:10,114 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 01:00:10,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:00:10 BoogieIcfgContainer [2023-12-22 01:00:10,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 01:00:10,115 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 01:00:10,115 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 01:00:10,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 01:00:10,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:59:42" (1/3) ... [2023-12-22 01:00:10,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302d7612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:00:10, skipping insertion in model container [2023-12-22 01:00:10,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:59:44" (2/3) ... [2023-12-22 01:00:10,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302d7612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:00:10, skipping insertion in model container [2023-12-22 01:00:10,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:00:10" (3/3) ... [2023-12-22 01:00:10,119 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c [2023-12-22 01:00:10,130 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 01:00:10,130 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 01:00:10,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 01:00:10,175 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;@38482828, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 01:00:10,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 01:00:10,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 836 states, 833 states have (on average 1.9747899159663866) internal successors, (1645), 835 states have internal predecessors, (1645), 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) [2023-12-22 01:00:10,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-22 01:00:10,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:10,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:00:10,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:10,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:10,194 INFO L85 PathProgramCache]: Analyzing trace with hash -690360246, now seen corresponding path program 1 times [2023-12-22 01:00:10,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:10,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63981754] [2023-12-22 01:00:10,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:10,205 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 [2023-12-22 01:00:10,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:10,216 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) [2023-12-22 01:00:10,236 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 [2023-12-22 01:00:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:10,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 01:00:10,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:10,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:10,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:10,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:10,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63981754] [2023-12-22 01:00:10,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63981754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:10,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:10,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:00:10,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105686298] [2023-12-22 01:00:10,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:10,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 01:00:10,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:10,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 01:00:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:00:10,366 INFO L87 Difference]: Start difference. First operand has 836 states, 833 states have (on average 1.9747899159663866) internal successors, (1645), 835 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-12-22 01:00:10,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:10,469 INFO L93 Difference]: Finished difference Result 1636 states and 3221 transitions. [2023-12-22 01:00:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 01:00:10,471 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-22 01:00:10,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:10,487 INFO L225 Difference]: With dead ends: 1636 [2023-12-22 01:00:10,487 INFO L226 Difference]: Without dead ends: 832 [2023-12-22 01:00:10,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:00:10,496 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:10,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1573 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:10,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2023-12-22 01:00:10,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2023-12-22 01:00:10,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 830 states have (on average 1.8963855421686746) internal successors, (1574), 831 states have internal predecessors, (1574), 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) [2023-12-22 01:00:10,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1574 transitions. [2023-12-22 01:00:10,542 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1574 transitions. Word has length 19 [2023-12-22 01:00:10,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:10,543 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1574 transitions. [2023-12-22 01:00:10,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-12-22 01:00:10,543 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1574 transitions. [2023-12-22 01:00:10,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-22 01:00:10,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:10,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:00:10,549 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 [2023-12-22 01:00:10,747 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 [2023-12-22 01:00:10,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:10,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1303055782, now seen corresponding path program 1 times [2023-12-22 01:00:10,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:10,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210606574] [2023-12-22 01:00:10,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:10,749 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 [2023-12-22 01:00:10,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:10,751 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) [2023-12-22 01:00:10,753 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 [2023-12-22 01:00:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:10,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:00:10,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:10,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:10,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:10,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210606574] [2023-12-22 01:00:10,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210606574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:10,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:10,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:00:10,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045425822] [2023-12-22 01:00:10,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:10,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:00:10,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:10,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:00:10,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:10,880 INFO L87 Difference]: Start difference. First operand 832 states and 1574 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-12-22 01:00:45,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:45,371 INFO L93 Difference]: Finished difference Result 2336 states and 4447 transitions. [2023-12-22 01:00:45,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:00:45,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-22 01:00:45,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:45,381 INFO L225 Difference]: With dead ends: 2336 [2023-12-22 01:00:45,381 INFO L226 Difference]: Without dead ends: 1583 [2023-12-22 01:00:45,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:45,383 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 917 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:45,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 607 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 34.3s Time] [2023-12-22 01:00:45,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2023-12-22 01:00:45,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1583. [2023-12-22 01:00:45,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1581 states have (on average 1.6148007590132827) internal successors, (2553), 1582 states have internal predecessors, (2553), 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) [2023-12-22 01:00:45,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2553 transitions. [2023-12-22 01:00:45,417 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2553 transitions. Word has length 19 [2023-12-22 01:00:45,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:45,417 INFO L495 AbstractCegarLoop]: Abstraction has 1583 states and 2553 transitions. [2023-12-22 01:00:45,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-12-22 01:00:45,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2553 transitions. [2023-12-22 01:00:45,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-22 01:00:45,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:45,418 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] [2023-12-22 01:00:45,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 01:00:45,620 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 [2023-12-22 01:00:45,621 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:45,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:45,622 INFO L85 PathProgramCache]: Analyzing trace with hash 892497994, now seen corresponding path program 1 times [2023-12-22 01:00:45,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:45,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039173447] [2023-12-22 01:00:45,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:45,622 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 [2023-12-22 01:00:45,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:45,623 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) [2023-12-22 01:00:45,650 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 [2023-12-22 01:00:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:45,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:00:45,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:45,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:45,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:45,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039173447] [2023-12-22 01:00:45,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039173447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:45,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:45,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:00:45,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200592987] [2023-12-22 01:00:45,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:45,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:00:45,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:45,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:00:45,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:00:45,742 INFO L87 Difference]: Start difference. First operand 1583 states and 2553 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-12-22 01:00:45,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:45,810 INFO L93 Difference]: Finished difference Result 1629 states and 2625 transitions. [2023-12-22 01:00:45,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:00:45,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-22 01:00:45,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:45,815 INFO L225 Difference]: With dead ends: 1629 [2023-12-22 01:00:45,815 INFO L226 Difference]: Without dead ends: 1583 [2023-12-22 01:00:45,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:00:45,818 INFO L413 NwaCegarLoop]: 1571 mSDtfsCounter, 0 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4678 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:45,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4678 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2023-12-22 01:00:45,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1583. [2023-12-22 01:00:45,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1581 states have (on average 1.5951929158760279) internal successors, (2522), 1582 states have internal predecessors, (2522), 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) [2023-12-22 01:00:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2522 transitions. [2023-12-22 01:00:45,842 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2522 transitions. Word has length 21 [2023-12-22 01:00:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:45,842 INFO L495 AbstractCegarLoop]: Abstraction has 1583 states and 2522 transitions. [2023-12-22 01:00:45,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-12-22 01:00:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2522 transitions. [2023-12-22 01:00:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-22 01:00:45,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:45,846 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] [2023-12-22 01:00:45,851 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 [2023-12-22 01:00:46,049 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 [2023-12-22 01:00:46,050 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:46,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:46,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1076852577, now seen corresponding path program 1 times [2023-12-22 01:00:46,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:46,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858440471] [2023-12-22 01:00:46,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:46,051 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 [2023-12-22 01:00:46,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:46,052 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) [2023-12-22 01:00:46,072 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 [2023-12-22 01:00:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:46,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:00:46,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:46,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:46,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:46,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:46,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858440471] [2023-12-22 01:00:46,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858440471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:46,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:46,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:00:46,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477651154] [2023-12-22 01:00:46,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:46,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:00:46,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:46,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:00:46,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:00:46,706 INFO L87 Difference]: Start difference. First operand 1583 states and 2522 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2023-12-22 01:00:46,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:46,913 INFO L93 Difference]: Finished difference Result 1841 states and 2936 transitions. [2023-12-22 01:00:46,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:00:46,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-22 01:00:46,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:46,927 INFO L225 Difference]: With dead ends: 1841 [2023-12-22 01:00:46,927 INFO L226 Difference]: Without dead ends: 1798 [2023-12-22 01:00:46,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:00:46,930 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 4741 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4741 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:46,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4741 Valid, 1963 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:00:46,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2023-12-22 01:00:46,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1665. [2023-12-22 01:00:46,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1663 states have (on average 1.5965123271196633) internal successors, (2655), 1664 states have internal predecessors, (2655), 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) [2023-12-22 01:00:46,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2655 transitions. [2023-12-22 01:00:46,959 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2655 transitions. Word has length 51 [2023-12-22 01:00:46,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:46,960 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2655 transitions. [2023-12-22 01:00:46,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2023-12-22 01:00:46,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2655 transitions. [2023-12-22 01:00:46,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-22 01:00:46,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:46,961 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] [2023-12-22 01:00:46,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 01:00:47,163 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 [2023-12-22 01:00:47,164 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:47,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:47,164 INFO L85 PathProgramCache]: Analyzing trace with hash -377541423, now seen corresponding path program 1 times [2023-12-22 01:00:47,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:47,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545961955] [2023-12-22 01:00:47,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:47,165 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 [2023-12-22 01:00:47,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:47,166 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) [2023-12-22 01:00:47,199 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 [2023-12-22 01:00:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:47,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:00:47,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:47,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:47,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:47,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545961955] [2023-12-22 01:00:47,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545961955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:47,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:47,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:00:47,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241777331] [2023-12-22 01:00:47,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:47,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:00:47,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:47,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:00:47,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:47,316 INFO L87 Difference]: Start difference. First operand 1665 states and 2655 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-12-22 01:00:47,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:47,358 INFO L93 Difference]: Finished difference Result 1899 states and 3031 transitions. [2023-12-22 01:00:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:00:47,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-22 01:00:47,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:47,364 INFO L225 Difference]: With dead ends: 1899 [2023-12-22 01:00:47,364 INFO L226 Difference]: Without dead ends: 1774 [2023-12-22 01:00:47,364 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 [2023-12-22 01:00:47,365 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 1482 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:47,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1597 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:47,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2023-12-22 01:00:47,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1769. [2023-12-22 01:00:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1767 states have (on average 1.5942275042444822) internal successors, (2817), 1768 states have internal predecessors, (2817), 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) [2023-12-22 01:00:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2817 transitions. [2023-12-22 01:00:47,389 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2817 transitions. Word has length 53 [2023-12-22 01:00:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:47,390 INFO L495 AbstractCegarLoop]: Abstraction has 1769 states and 2817 transitions. [2023-12-22 01:00:47,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-12-22 01:00:47,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2817 transitions. [2023-12-22 01:00:47,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-22 01:00:47,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:47,390 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] [2023-12-22 01:00:47,394 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 [2023-12-22 01:00:47,593 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 [2023-12-22 01:00:47,594 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:47,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:47,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1118535855, now seen corresponding path program 1 times [2023-12-22 01:00:47,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:47,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135947540] [2023-12-22 01:00:47,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:47,594 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 [2023-12-22 01:00:47,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:47,596 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) [2023-12-22 01:00:47,601 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 [2023-12-22 01:00:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:47,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:00:47,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:47,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:47,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:47,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:47,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135947540] [2023-12-22 01:00:47,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135947540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:47,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:47,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:00:47,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667943123] [2023-12-22 01:00:47,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:47,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:00:47,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:47,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:00:47,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:00:47,685 INFO L87 Difference]: Start difference. First operand 1769 states and 2817 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-12-22 01:00:47,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:47,735 INFO L93 Difference]: Finished difference Result 1783 states and 2834 transitions. [2023-12-22 01:00:47,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:00:47,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-22 01:00:47,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:47,740 INFO L225 Difference]: With dead ends: 1783 [2023-12-22 01:00:47,740 INFO L226 Difference]: Without dead ends: 1781 [2023-12-22 01:00:47,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:00:47,741 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 1 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4609 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:47,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4609 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2023-12-22 01:00:47,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1777. [2023-12-22 01:00:47,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1775 states have (on average 1.5909859154929578) internal successors, (2824), 1776 states have internal predecessors, (2824), 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) [2023-12-22 01:00:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2824 transitions. [2023-12-22 01:00:47,766 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2824 transitions. Word has length 54 [2023-12-22 01:00:47,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:47,766 INFO L495 AbstractCegarLoop]: Abstraction has 1777 states and 2824 transitions. [2023-12-22 01:00:47,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-12-22 01:00:47,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2824 transitions. [2023-12-22 01:00:47,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 01:00:47,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:47,767 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] [2023-12-22 01:00:47,770 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 [2023-12-22 01:00:47,970 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 [2023-12-22 01:00:47,970 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:47,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:47,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1027191959, now seen corresponding path program 1 times [2023-12-22 01:00:47,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:47,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477069989] [2023-12-22 01:00:47,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:47,971 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 [2023-12-22 01:00:47,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:47,972 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) [2023-12-22 01:00:47,979 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 [2023-12-22 01:00:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:48,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:00:48,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:48,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:48,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:48,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:48,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477069989] [2023-12-22 01:00:48,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477069989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:48,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:48,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:00:48,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292340195] [2023-12-22 01:00:48,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:48,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:00:48,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:48,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:00:48,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:48,118 INFO L87 Difference]: Start difference. First operand 1777 states and 2824 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:00:48,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:48,155 INFO L93 Difference]: Finished difference Result 2227 states and 3524 transitions. [2023-12-22 01:00:48,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:00:48,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-22 01:00:48,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:48,165 INFO L225 Difference]: With dead ends: 2227 [2023-12-22 01:00:48,165 INFO L226 Difference]: Without dead ends: 1990 [2023-12-22 01:00:48,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:48,166 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 1495 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:48,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1658 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:48,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2023-12-22 01:00:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1988. [2023-12-22 01:00:48,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1986 states have (on average 1.5840886203423967) internal successors, (3146), 1987 states have internal predecessors, (3146), 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) [2023-12-22 01:00:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 3146 transitions. [2023-12-22 01:00:48,195 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 3146 transitions. Word has length 55 [2023-12-22 01:00:48,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:48,196 INFO L495 AbstractCegarLoop]: Abstraction has 1988 states and 3146 transitions. [2023-12-22 01:00:48,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:00:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 3146 transitions. [2023-12-22 01:00:48,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 01:00:48,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:48,197 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] [2023-12-22 01:00:48,209 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 [2023-12-22 01:00:48,409 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 [2023-12-22 01:00:48,410 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:48,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:48,410 INFO L85 PathProgramCache]: Analyzing trace with hash -987248023, now seen corresponding path program 1 times [2023-12-22 01:00:48,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:48,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689226663] [2023-12-22 01:00:48,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:48,411 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 [2023-12-22 01:00:48,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:48,412 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) [2023-12-22 01:00:48,420 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 [2023-12-22 01:00:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:48,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:00:48,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:48,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:48,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:48,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689226663] [2023-12-22 01:00:48,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689226663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:48,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:48,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:00:48,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410702040] [2023-12-22 01:00:48,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:48,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:00:48,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:48,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:00:48,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:48,539 INFO L87 Difference]: Start difference. First operand 1988 states and 3146 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:00:48,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:48,589 INFO L93 Difference]: Finished difference Result 2836 states and 4448 transitions. [2023-12-22 01:00:48,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:00:48,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-22 01:00:48,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:48,599 INFO L225 Difference]: With dead ends: 2836 [2023-12-22 01:00:48,600 INFO L226 Difference]: Without dead ends: 2388 [2023-12-22 01:00:48,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:48,601 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 1493 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:48,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1660 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:48,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2023-12-22 01:00:48,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2386. [2023-12-22 01:00:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2386 states, 2384 states have (on average 1.5696308724832215) internal successors, (3742), 2385 states have internal predecessors, (3742), 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) [2023-12-22 01:00:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 3742 transitions. [2023-12-22 01:00:48,638 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 3742 transitions. Word has length 55 [2023-12-22 01:00:48,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:48,639 INFO L495 AbstractCegarLoop]: Abstraction has 2386 states and 3742 transitions. [2023-12-22 01:00:48,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:00:48,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 3742 transitions. [2023-12-22 01:00:48,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 01:00:48,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:48,639 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] [2023-12-22 01:00:48,658 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 [2023-12-22 01:00:48,842 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 [2023-12-22 01:00:48,843 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:48,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1612904087, now seen corresponding path program 1 times [2023-12-22 01:00:48,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:48,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600439863] [2023-12-22 01:00:48,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:48,844 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 [2023-12-22 01:00:48,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:48,857 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) [2023-12-22 01:00:48,884 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 [2023-12-22 01:00:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:48,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:00:48,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:49,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:49,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:49,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600439863] [2023-12-22 01:00:49,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600439863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:49,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:49,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:00:49,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024313265] [2023-12-22 01:00:49,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:49,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:00:49,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:49,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:00:49,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:49,014 INFO L87 Difference]: Start difference. First operand 2386 states and 3742 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:00:49,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:49,111 INFO L93 Difference]: Finished difference Result 3982 states and 6152 transitions. [2023-12-22 01:00:49,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:00:49,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-22 01:00:49,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:49,120 INFO L225 Difference]: With dead ends: 3982 [2023-12-22 01:00:49,120 INFO L226 Difference]: Without dead ends: 3136 [2023-12-22 01:00:49,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:49,121 INFO L413 NwaCegarLoop]: 1581 mSDtfsCounter, 1491 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:49,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1662 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:49,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2023-12-22 01:00:49,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 3134. [2023-12-22 01:00:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3132 states have (on average 1.5446998722860792) internal successors, (4838), 3133 states have internal predecessors, (4838), 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) [2023-12-22 01:00:49,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 4838 transitions. [2023-12-22 01:00:49,175 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 4838 transitions. Word has length 55 [2023-12-22 01:00:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:49,176 INFO L495 AbstractCegarLoop]: Abstraction has 3134 states and 4838 transitions. [2023-12-22 01:00:49,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:00:49,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 4838 transitions. [2023-12-22 01:00:49,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 01:00:49,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:49,176 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] [2023-12-22 01:00:49,192 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 [2023-12-22 01:00:49,379 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 [2023-12-22 01:00:49,380 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:49,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:49,380 INFO L85 PathProgramCache]: Analyzing trace with hash -724170647, now seen corresponding path program 1 times [2023-12-22 01:00:49,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:49,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447262194] [2023-12-22 01:00:49,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:49,381 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 [2023-12-22 01:00:49,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:49,388 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) [2023-12-22 01:00:49,431 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 [2023-12-22 01:00:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:49,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:00:49,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:49,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:49,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:49,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:49,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447262194] [2023-12-22 01:00:49,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447262194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:49,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:49,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:00:49,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120197486] [2023-12-22 01:00:49,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:49,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:00:49,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:49,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:00:49,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:49,505 INFO L87 Difference]: Start difference. First operand 3134 states and 4838 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:00:49,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:49,560 INFO L93 Difference]: Finished difference Result 6130 states and 9272 transitions. [2023-12-22 01:00:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:00:49,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-22 01:00:49,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:49,571 INFO L225 Difference]: With dead ends: 6130 [2023-12-22 01:00:49,572 INFO L226 Difference]: Without dead ends: 4536 [2023-12-22 01:00:49,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:49,575 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 1489 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:49,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1664 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:49,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4536 states. [2023-12-22 01:00:49,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4536 to 4534. [2023-12-22 01:00:49,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4534 states, 4532 states have (on average 1.5088261253309796) internal successors, (6838), 4533 states have internal predecessors, (6838), 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) [2023-12-22 01:00:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4534 states to 4534 states and 6838 transitions. [2023-12-22 01:00:49,650 INFO L78 Accepts]: Start accepts. Automaton has 4534 states and 6838 transitions. Word has length 55 [2023-12-22 01:00:49,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:49,650 INFO L495 AbstractCegarLoop]: Abstraction has 4534 states and 6838 transitions. [2023-12-22 01:00:49,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:00:49,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4534 states and 6838 transitions. [2023-12-22 01:00:49,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 01:00:49,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:49,650 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] [2023-12-22 01:00:49,656 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 [2023-12-22 01:00:49,853 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 [2023-12-22 01:00:49,854 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:49,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:49,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2038301810, now seen corresponding path program 1 times [2023-12-22 01:00:49,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:49,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708192403] [2023-12-22 01:00:49,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:49,855 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 [2023-12-22 01:00:49,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:49,856 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) [2023-12-22 01:00:49,866 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 [2023-12-22 01:00:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:49,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:00:49,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:49,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:49,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:49,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708192403] [2023-12-22 01:00:49,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708192403] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:49,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:49,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:00:49,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713443816] [2023-12-22 01:00:49,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:49,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:00:49,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:49,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:00:49,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:49,978 INFO L87 Difference]: Start difference. First operand 4534 states and 6838 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2023-12-22 01:00:50,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:50,047 INFO L93 Difference]: Finished difference Result 7613 states and 11452 transitions. [2023-12-22 01:00:50,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:00:50,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-22 01:00:50,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:50,062 INFO L225 Difference]: With dead ends: 7613 [2023-12-22 01:00:50,062 INFO L226 Difference]: Without dead ends: 5930 [2023-12-22 01:00:50,066 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 [2023-12-22 01:00:50,066 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 1494 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:50,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1659 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:50,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5930 states. [2023-12-22 01:00:50,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5930 to 5928. [2023-12-22 01:00:50,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5926 states have (on average 1.4944313196085048) internal successors, (8856), 5927 states have internal predecessors, (8856), 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) [2023-12-22 01:00:50,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8856 transitions. [2023-12-22 01:00:50,171 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8856 transitions. Word has length 57 [2023-12-22 01:00:50,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:50,171 INFO L495 AbstractCegarLoop]: Abstraction has 5928 states and 8856 transitions. [2023-12-22 01:00:50,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2023-12-22 01:00:50,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8856 transitions. [2023-12-22 01:00:50,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 01:00:50,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:50,173 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 01:00:50,194 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 (12)] Ended with exit code 0 [2023-12-22 01:00:50,376 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 [2023-12-22 01:00:50,376 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:50,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:50,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1695522485, now seen corresponding path program 1 times [2023-12-22 01:00:50,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:50,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653782635] [2023-12-22 01:00:50,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:50,377 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 [2023-12-22 01:00:50,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:50,378 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) [2023-12-22 01:00:50,437 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 [2023-12-22 01:00:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:50,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:00:50,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:50,530 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:50,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:50,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:50,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653782635] [2023-12-22 01:00:50,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653782635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:50,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:50,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:00:50,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833586622] [2023-12-22 01:00:50,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:50,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:00:50,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:50,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:00:50,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:50,532 INFO L87 Difference]: Start difference. First operand 5928 states and 8856 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-12-22 01:00:50,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:50,590 INFO L93 Difference]: Finished difference Result 9023 states and 13438 transitions. [2023-12-22 01:00:50,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:00:50,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-22 01:00:50,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:50,597 INFO L225 Difference]: With dead ends: 9023 [2023-12-22 01:00:50,597 INFO L226 Difference]: Without dead ends: 4637 [2023-12-22 01:00:50,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:50,602 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 50 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:50,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3106 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:50,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2023-12-22 01:00:50,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4635. [2023-12-22 01:00:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 4633 states have (on average 1.5080941074897474) internal successors, (6987), 4634 states have internal predecessors, (6987), 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) [2023-12-22 01:00:50,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 6987 transitions. [2023-12-22 01:00:50,686 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 6987 transitions. Word has length 73 [2023-12-22 01:00:50,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:50,686 INFO L495 AbstractCegarLoop]: Abstraction has 4635 states and 6987 transitions. [2023-12-22 01:00:50,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-12-22 01:00:50,686 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 6987 transitions. [2023-12-22 01:00:50,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-22 01:00:50,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:50,691 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 01:00:50,708 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 (13)] Ended with exit code 0 [2023-12-22 01:00:50,894 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 [2023-12-22 01:00:50,894 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:50,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:50,894 INFO L85 PathProgramCache]: Analyzing trace with hash -58842896, now seen corresponding path program 1 times [2023-12-22 01:00:50,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:50,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183275954] [2023-12-22 01:00:50,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:50,895 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 [2023-12-22 01:00:50,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:50,896 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) [2023-12-22 01:00:50,897 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 [2023-12-22 01:00:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:50,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:00:50,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:51,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:00:51,977 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:51,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:51,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183275954] [2023-12-22 01:00:51,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183275954] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:00:51,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:00:51,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:00:51,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642357404] [2023-12-22 01:00:51,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:00:51,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:00:51,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:51,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:00:51,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:00:51,979 INFO L87 Difference]: Start difference. First operand 4635 states and 6987 transitions. Second operand has 16 states, 16 states have (on average 8.5) internal successors, (136), 16 states have internal predecessors, (136), 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) [2023-12-22 01:00:53,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:53,765 INFO L93 Difference]: Finished difference Result 12829 states and 18824 transitions. [2023-12-22 01:00:53,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:00:53,766 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 16 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-22 01:00:53,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:53,778 INFO L225 Difference]: With dead ends: 12829 [2023-12-22 01:00:53,779 INFO L226 Difference]: Without dead ends: 9755 [2023-12-22 01:00:53,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 01:00:53,783 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 3619 mSDsluCounter, 9452 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3619 SdHoareTripleChecker+Valid, 11014 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:53,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3619 Valid, 11014 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 01:00:53,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9755 states. [2023-12-22 01:00:53,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9755 to 7707. [2023-12-22 01:00:53,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7707 states, 7705 states have (on average 1.4861778066190785) internal successors, (11451), 7706 states have internal predecessors, (11451), 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) [2023-12-22 01:00:53,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7707 states to 7707 states and 11451 transitions. [2023-12-22 01:00:53,942 INFO L78 Accepts]: Start accepts. Automaton has 7707 states and 11451 transitions. Word has length 75 [2023-12-22 01:00:53,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:53,943 INFO L495 AbstractCegarLoop]: Abstraction has 7707 states and 11451 transitions. [2023-12-22 01:00:53,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 16 states have internal predecessors, (136), 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) [2023-12-22 01:00:53,943 INFO L276 IsEmpty]: Start isEmpty. Operand 7707 states and 11451 transitions. [2023-12-22 01:00:53,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-22 01:00:53,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:53,944 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 01:00:53,952 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 [2023-12-22 01:00:54,147 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 [2023-12-22 01:00:54,148 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:54,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:54,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1997533352, now seen corresponding path program 1 times [2023-12-22 01:00:54,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:54,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198675801] [2023-12-22 01:00:54,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:54,150 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 [2023-12-22 01:00:54,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:54,159 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:00:54,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 01:00:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:54,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:00:54,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:54,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:54,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:54,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198675801] [2023-12-22 01:00:54,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198675801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:54,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:54,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:00:54,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566829205] [2023-12-22 01:00:54,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:54,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:00:54,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:54,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:00:54,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:54,280 INFO L87 Difference]: Start difference. First operand 7707 states and 11451 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2023-12-22 01:00:54,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:54,353 INFO L93 Difference]: Finished difference Result 10783 states and 15941 transitions. [2023-12-22 01:00:54,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:00:54,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-22 01:00:54,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:54,361 INFO L225 Difference]: With dead ends: 10783 [2023-12-22 01:00:54,361 INFO L226 Difference]: Without dead ends: 4637 [2023-12-22 01:00:54,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:54,367 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:54,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3091 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:54,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2023-12-22 01:00:54,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4635. [2023-12-22 01:00:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 4633 states have (on average 1.4925534211094322) internal successors, (6915), 4634 states have internal predecessors, (6915), 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) [2023-12-22 01:00:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 6915 transitions. [2023-12-22 01:00:54,521 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 6915 transitions. Word has length 77 [2023-12-22 01:00:54,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:54,521 INFO L495 AbstractCegarLoop]: Abstraction has 4635 states and 6915 transitions. [2023-12-22 01:00:54,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2023-12-22 01:00:54,521 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 6915 transitions. [2023-12-22 01:00:54,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 01:00:54,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:54,522 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] [2023-12-22 01:00:54,527 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 (15)] Forceful destruction successful, exit code 0 [2023-12-22 01:00:54,725 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 [2023-12-22 01:00:54,725 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:54,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:54,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1539289055, now seen corresponding path program 1 times [2023-12-22 01:00:54,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:54,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225461401] [2023-12-22 01:00:54,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:54,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:00:54,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:54,741 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) [2023-12-22 01:00:54,786 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 [2023-12-22 01:00:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:54,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:00:54,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:55,587 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:00:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:55,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:55,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225461401] [2023-12-22 01:00:55,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225461401] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:00:55,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:00:55,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:00:55,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623285444] [2023-12-22 01:00:55,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:00:55,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:00:55,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:00:55,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:00:55,818 INFO L87 Difference]: Start difference. First operand 4635 states and 6915 transitions. Second operand has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 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) [2023-12-22 01:00:57,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:57,448 INFO L93 Difference]: Finished difference Result 13235 states and 19207 transitions. [2023-12-22 01:00:57,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:00:57,448 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-22 01:00:57,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:57,462 INFO L225 Difference]: With dead ends: 13235 [2023-12-22 01:00:57,462 INFO L226 Difference]: Without dead ends: 10161 [2023-12-22 01:00:57,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:00:57,469 INFO L413 NwaCegarLoop]: 1592 mSDtfsCounter, 1998 mSDsluCounter, 10894 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 12486 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:57,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 12486 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 01:00:57,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2023-12-22 01:00:57,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 7995. [2023-12-22 01:00:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7995 states, 7993 states have (on average 1.4506443137745528) internal successors, (11595), 7994 states have internal predecessors, (11595), 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) [2023-12-22 01:00:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7995 states to 7995 states and 11595 transitions. [2023-12-22 01:00:57,681 INFO L78 Accepts]: Start accepts. Automaton has 7995 states and 11595 transitions. Word has length 78 [2023-12-22 01:00:57,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:57,681 INFO L495 AbstractCegarLoop]: Abstraction has 7995 states and 11595 transitions. [2023-12-22 01:00:57,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 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) [2023-12-22 01:00:57,682 INFO L276 IsEmpty]: Start isEmpty. Operand 7995 states and 11595 transitions. [2023-12-22 01:00:57,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-22 01:00:57,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:57,683 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 01:00:57,694 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 [2023-12-22 01:00:57,885 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 [2023-12-22 01:00:57,886 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:57,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:57,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1737898347, now seen corresponding path program 1 times [2023-12-22 01:00:57,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:57,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028905386] [2023-12-22 01:00:57,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:57,887 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 [2023-12-22 01:00:57,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:57,888 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) [2023-12-22 01:00:57,904 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 [2023-12-22 01:00:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:57,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:00:57,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:58,016 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:58,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:00:58,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:58,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028905386] [2023-12-22 01:00:58,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028905386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:00:58,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:00:58,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:00:58,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237119638] [2023-12-22 01:00:58,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:00:58,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:00:58,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:58,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:00:58,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:58,018 INFO L87 Difference]: Start difference. First operand 7995 states and 11595 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2023-12-22 01:00:58,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:00:58,094 INFO L93 Difference]: Finished difference Result 11215 states and 16157 transitions. [2023-12-22 01:00:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:00:58,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-22 01:00:58,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:00:58,101 INFO L225 Difference]: With dead ends: 11215 [2023-12-22 01:00:58,101 INFO L226 Difference]: Without dead ends: 4781 [2023-12-22 01:00:58,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:00:58,106 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 40 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:00:58,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3076 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:00:58,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2023-12-22 01:00:58,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 4779. [2023-12-22 01:00:58,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4779 states, 4777 states have (on average 1.4626334519572954) internal successors, (6987), 4778 states have internal predecessors, (6987), 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) [2023-12-22 01:00:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 6987 transitions. [2023-12-22 01:00:58,214 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 6987 transitions. Word has length 80 [2023-12-22 01:00:58,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:00:58,214 INFO L495 AbstractCegarLoop]: Abstraction has 4779 states and 6987 transitions. [2023-12-22 01:00:58,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2023-12-22 01:00:58,214 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 6987 transitions. [2023-12-22 01:00:58,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 01:00:58,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:00:58,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:00:58,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 01:00:58,418 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 [2023-12-22 01:00:58,418 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:00:58,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:00:58,419 INFO L85 PathProgramCache]: Analyzing trace with hash -2040594556, now seen corresponding path program 1 times [2023-12-22 01:00:58,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:00:58,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555421824] [2023-12-22 01:00:58,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:00:58,419 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 [2023-12-22 01:00:58,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:00:58,420 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) [2023-12-22 01:00:58,422 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 [2023-12-22 01:00:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:00:58,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:00:58,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:00:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:59,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:00:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:00:59,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:00:59,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555421824] [2023-12-22 01:00:59,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555421824] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:00:59,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:00:59,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:00:59,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906050181] [2023-12-22 01:00:59,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:00:59,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:00:59,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:00:59,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:00:59,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:00:59,520 INFO L87 Difference]: Start difference. First operand 4779 states and 6987 transitions. Second operand has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 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) [2023-12-22 01:01:01,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:01:01,121 INFO L93 Difference]: Finished difference Result 13379 states and 18943 transitions. [2023-12-22 01:01:01,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:01:01,122 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-22 01:01:01,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:01:01,134 INFO L225 Difference]: With dead ends: 13379 [2023-12-22 01:01:01,134 INFO L226 Difference]: Without dead ends: 10161 [2023-12-22 01:01:01,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:01:01,141 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 6426 mSDsluCounter, 12291 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6426 SdHoareTripleChecker+Valid, 13865 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:01:01,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6426 Valid, 13865 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:01:01,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2023-12-22 01:01:01,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 8283. [2023-12-22 01:01:01,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8283 states, 8281 states have (on average 1.4175824175824177) internal successors, (11739), 8282 states have internal predecessors, (11739), 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) [2023-12-22 01:01:01,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8283 states to 8283 states and 11739 transitions. [2023-12-22 01:01:01,358 INFO L78 Accepts]: Start accepts. Automaton has 8283 states and 11739 transitions. Word has length 81 [2023-12-22 01:01:01,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:01:01,358 INFO L495 AbstractCegarLoop]: Abstraction has 8283 states and 11739 transitions. [2023-12-22 01:01:01,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 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) [2023-12-22 01:01:01,359 INFO L276 IsEmpty]: Start isEmpty. Operand 8283 states and 11739 transitions. [2023-12-22 01:01:01,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-22 01:01:01,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:01:01,360 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] [2023-12-22 01:01:01,365 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 [2023-12-22 01:01:01,563 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 [2023-12-22 01:01:01,563 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:01:01,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:01:01,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1243587452, now seen corresponding path program 1 times [2023-12-22 01:01:01,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:01:01,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340728597] [2023-12-22 01:01:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:01:01,567 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 [2023-12-22 01:01:01,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:01:01,568 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) [2023-12-22 01:01:01,596 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 [2023-12-22 01:01:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:01:01,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:01:01,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:01:01,683 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:01:01,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:01:01,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:01:01,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340728597] [2023-12-22 01:01:01,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340728597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:01:01,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:01:01,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:01:01,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516647388] [2023-12-22 01:01:01,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:01:01,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:01:01,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:01:01,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:01:01,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:01:01,687 INFO L87 Difference]: Start difference. First operand 8283 states and 11739 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-12-22 01:01:01,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:01:01,771 INFO L93 Difference]: Finished difference Result 11647 states and 16373 transitions. [2023-12-22 01:01:01,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:01:01,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-22 01:01:01,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:01:01,777 INFO L225 Difference]: With dead ends: 11647 [2023-12-22 01:01:01,777 INFO L226 Difference]: Without dead ends: 4925 [2023-12-22 01:01:01,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:01:01,783 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 36 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3061 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:01:01,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3061 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:01:01,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4925 states. [2023-12-22 01:01:01,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4925 to 4923. [2023-12-22 01:01:01,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4923 states, 4921 states have (on average 1.4344645397276976) internal successors, (7059), 4922 states have internal predecessors, (7059), 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) [2023-12-22 01:01:01,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 7059 transitions. [2023-12-22 01:01:01,947 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 7059 transitions. Word has length 83 [2023-12-22 01:01:01,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:01:01,947 INFO L495 AbstractCegarLoop]: Abstraction has 4923 states and 7059 transitions. [2023-12-22 01:01:01,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-12-22 01:01:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 7059 transitions. [2023-12-22 01:01:01,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-22 01:01:01,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:01:01,948 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:01:01,953 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 (19)] Forceful destruction successful, exit code 0 [2023-12-22 01:01:02,148 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 [2023-12-22 01:01:02,149 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:01:02,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:01:02,149 INFO L85 PathProgramCache]: Analyzing trace with hash -227514763, now seen corresponding path program 1 times [2023-12-22 01:01:02,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:01:02,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333803544] [2023-12-22 01:01:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:01:02,150 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 [2023-12-22 01:01:02,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:01:02,151 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) [2023-12-22 01:01:02,182 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 [2023-12-22 01:01:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:01:02,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:01:02,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:01:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:01:02,847 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:01:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:01:03,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:01:03,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333803544] [2023-12-22 01:01:03,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333803544] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:01:03,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:01:03,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:01:03,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179063743] [2023-12-22 01:01:03,184 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:01:03,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:01:03,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:01:03,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:01:03,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:01:03,185 INFO L87 Difference]: Start difference. First operand 4923 states and 7059 transitions. Second operand has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 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) [2023-12-22 01:01:04,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:01:04,509 INFO L93 Difference]: Finished difference Result 13523 states and 18679 transitions. [2023-12-22 01:01:04,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:01:04,510 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-22 01:01:04,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:01:04,520 INFO L225 Difference]: With dead ends: 13523 [2023-12-22 01:01:04,520 INFO L226 Difference]: Without dead ends: 10161 [2023-12-22 01:01:04,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:01:04,524 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 6488 mSDsluCounter, 10729 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6488 SdHoareTripleChecker+Valid, 12285 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:01:04,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6488 Valid, 12285 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 01:01:04,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2023-12-22 01:01:04,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 8571. [2023-12-22 01:01:04,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8571 states, 8569 states have (on average 1.3867429104913058) internal successors, (11883), 8570 states have internal predecessors, (11883), 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) [2023-12-22 01:01:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8571 states to 8571 states and 11883 transitions. [2023-12-22 01:01:04,738 INFO L78 Accepts]: Start accepts. Automaton has 8571 states and 11883 transitions. Word has length 84 [2023-12-22 01:01:04,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:01:04,738 INFO L495 AbstractCegarLoop]: Abstraction has 8571 states and 11883 transitions. [2023-12-22 01:01:04,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 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) [2023-12-22 01:01:04,738 INFO L276 IsEmpty]: Start isEmpty. Operand 8571 states and 11883 transitions. [2023-12-22 01:01:04,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 01:01:04,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:01:04,739 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:01:04,748 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 (20)] Ended with exit code 0 [2023-12-22 01:01:04,942 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 [2023-12-22 01:01:04,942 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:01:04,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:01:04,943 INFO L85 PathProgramCache]: Analyzing trace with hash 96887169, now seen corresponding path program 1 times [2023-12-22 01:01:04,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:01:04,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510939761] [2023-12-22 01:01:04,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:01:04,943 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 [2023-12-22 01:01:04,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:01:04,944 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) [2023-12-22 01:01:04,966 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 [2023-12-22 01:01:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:01:05,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:01:05,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:01:05,071 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:01:05,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:01:05,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:01:05,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510939761] [2023-12-22 01:01:05,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510939761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:01:05,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:01:05,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:01:05,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095729585] [2023-12-22 01:01:05,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:01:05,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:01:05,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:01:05,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:01:05,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:01:05,073 INFO L87 Difference]: Start difference. First operand 8571 states and 11883 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-12-22 01:01:05,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:01:05,186 INFO L93 Difference]: Finished difference Result 11997 states and 16459 transitions. [2023-12-22 01:01:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:01:05,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-22 01:01:05,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:01:05,192 INFO L225 Difference]: With dead ends: 11997 [2023-12-22 01:01:05,192 INFO L226 Difference]: Without dead ends: 4987 [2023-12-22 01:01:05,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:01:05,197 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 32 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:01:05,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3046 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:01:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2023-12-22 01:01:05,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4985. [2023-12-22 01:01:05,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4985 states, 4983 states have (on average 1.4051776038531005) internal successors, (7002), 4984 states have internal predecessors, (7002), 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) [2023-12-22 01:01:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4985 states to 4985 states and 7002 transitions. [2023-12-22 01:01:05,292 INFO L78 Accepts]: Start accepts. Automaton has 4985 states and 7002 transitions. Word has length 86 [2023-12-22 01:01:05,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:01:05,292 INFO L495 AbstractCegarLoop]: Abstraction has 4985 states and 7002 transitions. [2023-12-22 01:01:05,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-12-22 01:01:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 4985 states and 7002 transitions. [2023-12-22 01:01:05,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 01:01:05,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:01:05,295 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:01:05,297 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 (21)] Forceful destruction successful, exit code 0 [2023-12-22 01:01:05,497 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 [2023-12-22 01:01:05,497 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:01:05,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:01:05,498 INFO L85 PathProgramCache]: Analyzing trace with hash -733741032, now seen corresponding path program 1 times [2023-12-22 01:01:05,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:01:05,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790708677] [2023-12-22 01:01:05,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:01:05,498 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 [2023-12-22 01:01:05,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:01:05,499 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) [2023-12-22 01:01:05,500 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 [2023-12-22 01:01:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:01:05,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:01:05,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:01:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:01:06,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:01:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:01:06,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:01:06,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790708677] [2023-12-22 01:01:06,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790708677] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:01:06,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:01:06,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:01:06,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323650178] [2023-12-22 01:01:06,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:01:06,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:01:06,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:01:06,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:01:06,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:01:06,634 INFO L87 Difference]: Start difference. First operand 4985 states and 7002 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 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) [2023-12-22 01:01:07,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:01:07,701 INFO L93 Difference]: Finished difference Result 11379 states and 15359 transitions. [2023-12-22 01:01:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 01:01:07,702 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-22 01:01:07,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:01:07,708 INFO L225 Difference]: With dead ends: 11379 [2023-12-22 01:01:07,708 INFO L226 Difference]: Without dead ends: 7955 [2023-12-22 01:01:07,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 01:01:07,712 INFO L413 NwaCegarLoop]: 1538 mSDtfsCounter, 4862 mSDsluCounter, 10637 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4862 SdHoareTripleChecker+Valid, 12175 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:01:07,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4862 Valid, 12175 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 01:01:07,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2023-12-22 01:01:07,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 7425. [2023-12-22 01:01:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7425 states, 7423 states have (on average 1.361713592886973) internal successors, (10108), 7424 states have internal predecessors, (10108), 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) [2023-12-22 01:01:07,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7425 states to 7425 states and 10108 transitions. [2023-12-22 01:01:07,876 INFO L78 Accepts]: Start accepts. Automaton has 7425 states and 10108 transitions. Word has length 87 [2023-12-22 01:01:07,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:01:07,877 INFO L495 AbstractCegarLoop]: Abstraction has 7425 states and 10108 transitions. [2023-12-22 01:01:07,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 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) [2023-12-22 01:01:07,877 INFO L276 IsEmpty]: Start isEmpty. Operand 7425 states and 10108 transitions. [2023-12-22 01:01:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 01:01:07,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:01:07,878 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 01:01:07,900 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 [2023-12-22 01:01:08,084 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 [2023-12-22 01:01:08,084 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:01:08,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:01:08,085 INFO L85 PathProgramCache]: Analyzing trace with hash 578530535, now seen corresponding path program 1 times [2023-12-22 01:01:08,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:01:08,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561506626] [2023-12-22 01:01:08,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:01:08,085 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 [2023-12-22 01:01:08,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:01:08,087 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) [2023-12-22 01:01:08,088 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 [2023-12-22 01:01:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:01:08,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:01:08,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:01:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:01:08,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:01:08,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:01:08,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561506626] [2023-12-22 01:01:08,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561506626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:01:08,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:01:08,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:01:08,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931464101] [2023-12-22 01:01:08,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:01:08,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:01:08,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:01:08,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:01:08,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:01:08,246 INFO L87 Difference]: Start difference. First operand 7425 states and 10108 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 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) [2023-12-22 01:01:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:01:48,010 INFO L93 Difference]: Finished difference Result 10431 states and 14939 transitions. [2023-12-22 01:01:48,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:01:48,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-22 01:01:48,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:01:48,018 INFO L225 Difference]: With dead ends: 10431 [2023-12-22 01:01:48,018 INFO L226 Difference]: Without dead ends: 8927 [2023-12-22 01:01:48,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:01:48,020 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 802 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:01:48,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 757 Invalid, 2944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 39.5s Time] [2023-12-22 01:01:48,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8927 states. [2023-12-22 01:01:48,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8927 to 8927. [2023-12-22 01:01:48,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 1.3236974789915967) internal successors, (11814), 8926 states have internal predecessors, (11814), 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) [2023-12-22 01:01:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 11814 transitions. [2023-12-22 01:01:48,197 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 11814 transitions. Word has length 87 [2023-12-22 01:01:48,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:01:48,198 INFO L495 AbstractCegarLoop]: Abstraction has 8927 states and 11814 transitions. [2023-12-22 01:01:48,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 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) [2023-12-22 01:01:48,198 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 11814 transitions. [2023-12-22 01:01:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-22 01:01:48,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:01:48,200 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:01:48,214 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 [2023-12-22 01:01:48,404 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 [2023-12-22 01:01:48,405 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:01:48,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:01:48,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1682581584, now seen corresponding path program 1 times [2023-12-22 01:01:48,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:01:48,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474339561] [2023-12-22 01:01:48,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:01:48,406 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 [2023-12-22 01:01:48,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:01:48,410 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) [2023-12-22 01:01:48,411 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 [2023-12-22 01:01:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:01:48,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:01:48,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:01:48,594 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:01:48,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:01:48,721 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:01:48,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:01:48,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474339561] [2023-12-22 01:01:48,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474339561] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:01:48,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:01:48,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:01:48,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57619109] [2023-12-22 01:01:48,721 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:01:48,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 01:01:48,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:01:48,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 01:01:48,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 01:01:48,722 INFO L87 Difference]: Start difference. First operand 8927 states and 11814 transitions. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2023-12-22 01:01:49,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:01:49,223 INFO L93 Difference]: Finished difference Result 25779 states and 33364 transitions. [2023-12-22 01:01:49,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 01:01:49,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-22 01:01:49,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:01:49,244 INFO L225 Difference]: With dead ends: 25779 [2023-12-22 01:01:49,245 INFO L226 Difference]: Without dead ends: 19915 [2023-12-22 01:01:49,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:01:49,252 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 1591 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:01:49,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 3262 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:01:49,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19915 states. [2023-12-22 01:01:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19915 to 19833. [2023-12-22 01:01:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19833 states, 19831 states have (on average 1.2492562150168927) internal successors, (24774), 19832 states have internal predecessors, (24774), 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) [2023-12-22 01:01:49,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19833 states to 19833 states and 24774 transitions. [2023-12-22 01:01:49,850 INFO L78 Accepts]: Start accepts. Automaton has 19833 states and 24774 transitions. Word has length 89 [2023-12-22 01:01:49,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:01:49,850 INFO L495 AbstractCegarLoop]: Abstraction has 19833 states and 24774 transitions. [2023-12-22 01:01:49,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2023-12-22 01:01:49,851 INFO L276 IsEmpty]: Start isEmpty. Operand 19833 states and 24774 transitions. [2023-12-22 01:01:49,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-22 01:01:49,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:01:49,852 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 01:01:49,855 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 (24)] Ended with exit code 0 [2023-12-22 01:01:50,055 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 [2023-12-22 01:01:50,056 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:01:50,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:01:50,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1316280916, now seen corresponding path program 1 times [2023-12-22 01:01:50,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:01:50,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714186189] [2023-12-22 01:01:50,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:01:50,071 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 [2023-12-22 01:01:50,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:01:50,073 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) [2023-12-22 01:01:50,105 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 [2023-12-22 01:01:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:01:50,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:01:50,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:01:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:01:50,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:01:50,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:01:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714186189] [2023-12-22 01:01:50,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714186189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:01:50,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:01:50,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:01:50,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483641693] [2023-12-22 01:01:50,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:01:50,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:01:50,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:01:50,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:01:50,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:01:50,302 INFO L87 Difference]: Start difference. First operand 19833 states and 24774 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2023-12-22 01:02:34,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:02:34,825 INFO L93 Difference]: Finished difference Result 25843 states and 33017 transitions. [2023-12-22 01:02:34,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:02:34,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-22 01:02:34,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:02:34,851 INFO L225 Difference]: With dead ends: 25843 [2023-12-22 01:02:34,851 INFO L226 Difference]: Without dead ends: 22837 [2023-12-22 01:02:34,857 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 [2023-12-22 01:02:34,863 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 781 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2778 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 2778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:02:34,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 768 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 2778 Invalid, 0 Unknown, 0 Unchecked, 43.9s Time] [2023-12-22 01:02:34,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22837 states. [2023-12-22 01:02:35,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22837 to 22837. [2023-12-22 01:02:35,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22837 states, 22835 states have (on average 1.2504050799211737) internal successors, (28553), 22836 states have internal predecessors, (28553), 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) [2023-12-22 01:02:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22837 states to 22837 states and 28553 transitions. [2023-12-22 01:02:35,520 INFO L78 Accepts]: Start accepts. Automaton has 22837 states and 28553 transitions. Word has length 96 [2023-12-22 01:02:35,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:02:35,520 INFO L495 AbstractCegarLoop]: Abstraction has 22837 states and 28553 transitions. [2023-12-22 01:02:35,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2023-12-22 01:02:35,520 INFO L276 IsEmpty]: Start isEmpty. Operand 22837 states and 28553 transitions. [2023-12-22 01:02:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-22 01:02:35,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:02:35,522 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 01:02:35,529 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 [2023-12-22 01:02:35,729 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 [2023-12-22 01:02:35,729 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:02:35,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:02:35,730 INFO L85 PathProgramCache]: Analyzing trace with hash 240706270, now seen corresponding path program 1 times [2023-12-22 01:02:35,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:02:35,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768844852] [2023-12-22 01:02:35,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:02:35,731 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 [2023-12-22 01:02:35,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:02:35,732 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) [2023-12-22 01:02:35,734 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 [2023-12-22 01:02:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:02:35,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:02:35,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:02:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:02:35,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:02:35,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:02:35,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768844852] [2023-12-22 01:02:35,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768844852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:02:35,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:02:35,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:02:35,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569419131] [2023-12-22 01:02:35,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:02:35,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:02:35,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:02:35,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:02:35,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:02:35,915 INFO L87 Difference]: Start difference. First operand 22837 states and 28553 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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) [2023-12-22 01:03:14,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:03:14,800 INFO L93 Difference]: Finished difference Result 34106 states and 43556 transitions. [2023-12-22 01:03:14,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:03:14,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-22 01:03:14,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:03:14,841 INFO L225 Difference]: With dead ends: 34106 [2023-12-22 01:03:14,841 INFO L226 Difference]: Without dead ends: 28096 [2023-12-22 01:03:14,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:03:14,848 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1014 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:03:14,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 453 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 38.2s Time] [2023-12-22 01:03:14,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28096 states. [2023-12-22 01:03:15,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28096 to 28094. [2023-12-22 01:03:15,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28094 states, 28092 states have (on average 1.234799943044283) internal successors, (34688), 28093 states have internal predecessors, (34688), 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) [2023-12-22 01:03:15,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28094 states to 28094 states and 34688 transitions. [2023-12-22 01:03:15,517 INFO L78 Accepts]: Start accepts. Automaton has 28094 states and 34688 transitions. Word has length 100 [2023-12-22 01:03:15,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:03:15,517 INFO L495 AbstractCegarLoop]: Abstraction has 28094 states and 34688 transitions. [2023-12-22 01:03:15,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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) [2023-12-22 01:03:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 28094 states and 34688 transitions. [2023-12-22 01:03:15,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 01:03:15,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:03:15,547 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:03:15,552 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 (26)] Forceful destruction successful, exit code 0 [2023-12-22 01:03:15,748 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 [2023-12-22 01:03:15,748 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:03:15,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:03:15,749 INFO L85 PathProgramCache]: Analyzing trace with hash -416258182, now seen corresponding path program 1 times [2023-12-22 01:03:15,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:03:15,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170224508] [2023-12-22 01:03:15,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:03:15,749 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 [2023-12-22 01:03:15,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:03:15,750 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) [2023-12-22 01:03:15,752 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 [2023-12-22 01:03:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:03:15,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:03:15,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:03:17,150 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 46 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:17,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:03:17,715 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 46 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:17,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:03:17,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170224508] [2023-12-22 01:03:17,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170224508] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:03:17,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:03:17,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:03:17,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423605553] [2023-12-22 01:03:17,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:03:17,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:03:17,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:03:17,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:03:17,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:03:17,717 INFO L87 Difference]: Start difference. First operand 28094 states and 34688 transitions. Second operand has 26 states, 26 states have (on average 9.538461538461538) internal successors, (248), 25 states have internal predecessors, (248), 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) [2023-12-22 01:03:20,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:03:20,102 INFO L93 Difference]: Finished difference Result 39388 states and 48703 transitions. [2023-12-22 01:03:20,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 01:03:20,102 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.538461538461538) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-22 01:03:20,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:03:20,137 INFO L225 Difference]: With dead ends: 39388 [2023-12-22 01:03:20,137 INFO L226 Difference]: Without dead ends: 28312 [2023-12-22 01:03:20,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 01:03:20,146 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 16710 mSDsluCounter, 7934 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16710 SdHoareTripleChecker+Valid, 9463 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:03:20,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16710 Valid, 9463 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:03:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28312 states. [2023-12-22 01:03:21,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28312 to 28094. [2023-12-22 01:03:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28094 states, 28092 states have (on average 1.2269329346433149) internal successors, (34467), 28093 states have internal predecessors, (34467), 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) [2023-12-22 01:03:21,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28094 states to 28094 states and 34467 transitions. [2023-12-22 01:03:21,073 INFO L78 Accepts]: Start accepts. Automaton has 28094 states and 34467 transitions. Word has length 136 [2023-12-22 01:03:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:03:21,073 INFO L495 AbstractCegarLoop]: Abstraction has 28094 states and 34467 transitions. [2023-12-22 01:03:21,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.538461538461538) internal successors, (248), 25 states have internal predecessors, (248), 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) [2023-12-22 01:03:21,074 INFO L276 IsEmpty]: Start isEmpty. Operand 28094 states and 34467 transitions. [2023-12-22 01:03:21,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 01:03:21,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:03:21,099 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:03:21,104 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 [2023-12-22 01:03:21,299 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 [2023-12-22 01:03:21,299 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:03:21,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:03:21,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1136918827, now seen corresponding path program 1 times [2023-12-22 01:03:21,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:03:21,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554657328] [2023-12-22 01:03:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:03:21,300 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 [2023-12-22 01:03:21,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:03:21,301 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) [2023-12-22 01:03:21,303 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 [2023-12-22 01:03:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:03:21,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:03:21,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:03:22,736 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 38 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:22,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:03:23,282 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 38 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:23,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:03:23,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554657328] [2023-12-22 01:03:23,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554657328] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:03:23,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:03:23,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:03:23,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906358567] [2023-12-22 01:03:23,283 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:03:23,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:03:23,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:03:23,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:03:23,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:03:23,284 INFO L87 Difference]: Start difference. First operand 28094 states and 34467 transitions. Second operand has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 25 states have internal predecessors, (254), 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) [2023-12-22 01:03:25,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:03:25,520 INFO L93 Difference]: Finished difference Result 38166 states and 46958 transitions. [2023-12-22 01:03:25,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:03:25,521 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 25 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-22 01:03:25,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:03:25,553 INFO L225 Difference]: With dead ends: 38166 [2023-12-22 01:03:25,553 INFO L226 Difference]: Without dead ends: 30880 [2023-12-22 01:03:25,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:03:25,561 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 19757 mSDsluCounter, 7898 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19757 SdHoareTripleChecker+Valid, 9427 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:03:25,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19757 Valid, 9427 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 01:03:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30880 states. [2023-12-22 01:03:26,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30880 to 28094. [2023-12-22 01:03:26,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28094 states, 28092 states have (on average 1.223230813042859) internal successors, (34363), 28093 states have internal predecessors, (34363), 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) [2023-12-22 01:03:26,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28094 states to 28094 states and 34363 transitions. [2023-12-22 01:03:26,381 INFO L78 Accepts]: Start accepts. Automaton has 28094 states and 34363 transitions. Word has length 137 [2023-12-22 01:03:26,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:03:26,382 INFO L495 AbstractCegarLoop]: Abstraction has 28094 states and 34363 transitions. [2023-12-22 01:03:26,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 25 states have internal predecessors, (254), 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) [2023-12-22 01:03:26,382 INFO L276 IsEmpty]: Start isEmpty. Operand 28094 states and 34363 transitions. [2023-12-22 01:03:26,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-22 01:03:26,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:03:26,386 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 01:03:26,389 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 (28)] Ended with exit code 0 [2023-12-22 01:03:26,589 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 [2023-12-22 01:03:26,590 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:03:26,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:03:26,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1289464214, now seen corresponding path program 1 times [2023-12-22 01:03:26,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:03:26,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099182536] [2023-12-22 01:03:26,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:03:26,591 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 [2023-12-22 01:03:26,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:03:26,591 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) [2023-12-22 01:03:26,592 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 [2023-12-22 01:03:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:03:26,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:03:26,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:03:28,182 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 30 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:28,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:03:28,696 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 30 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:28,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:03:28,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099182536] [2023-12-22 01:03:28,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099182536] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:03:28,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:03:28,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:03:28,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915392207] [2023-12-22 01:03:28,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:03:28,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:03:28,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:03:28,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:03:28,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:03:28,698 INFO L87 Difference]: Start difference. First operand 28094 states and 34363 transitions. Second operand has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 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) [2023-12-22 01:03:31,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:03:31,610 INFO L93 Difference]: Finished difference Result 37134 states and 45490 transitions. [2023-12-22 01:03:31,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:03:31,611 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-22 01:03:31,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:03:31,641 INFO L225 Difference]: With dead ends: 37134 [2023-12-22 01:03:31,641 INFO L226 Difference]: Without dead ends: 30088 [2023-12-22 01:03:31,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:03:31,649 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 12251 mSDsluCounter, 8026 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12251 SdHoareTripleChecker+Valid, 9555 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:03:31,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12251 Valid, 9555 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 01:03:31,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30088 states. [2023-12-22 01:03:32,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30088 to 28094. [2023-12-22 01:03:32,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28094 states, 28092 states have (on average 1.2193863021500784) internal successors, (34255), 28093 states have internal predecessors, (34255), 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) [2023-12-22 01:03:32,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28094 states to 28094 states and 34255 transitions. [2023-12-22 01:03:32,472 INFO L78 Accepts]: Start accepts. Automaton has 28094 states and 34255 transitions. Word has length 138 [2023-12-22 01:03:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:03:32,472 INFO L495 AbstractCegarLoop]: Abstraction has 28094 states and 34255 transitions. [2023-12-22 01:03:32,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 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) [2023-12-22 01:03:32,472 INFO L276 IsEmpty]: Start isEmpty. Operand 28094 states and 34255 transitions. [2023-12-22 01:03:32,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-22 01:03:32,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:03:32,476 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 01:03:32,482 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 [2023-12-22 01:03:32,680 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 [2023-12-22 01:03:32,680 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:03:32,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:03:32,681 INFO L85 PathProgramCache]: Analyzing trace with hash 460864773, now seen corresponding path program 1 times [2023-12-22 01:03:32,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:03:32,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264093990] [2023-12-22 01:03:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:03:32,681 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 [2023-12-22 01:03:32,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:03:32,682 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) [2023-12-22 01:03:32,684 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 [2023-12-22 01:03:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:03:32,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:03:32,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:03:34,237 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:34,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:03:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:34,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:03:34,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264093990] [2023-12-22 01:03:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264093990] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:03:34,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:03:34,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:03:34,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912217605] [2023-12-22 01:03:34,771 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:03:34,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:03:34,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:03:34,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:03:34,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:03:34,772 INFO L87 Difference]: Start difference. First operand 28094 states and 34255 transitions. Second operand has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 25 states have internal predecessors, (266), 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) [2023-12-22 01:03:37,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:03:37,339 INFO L93 Difference]: Finished difference Result 35988 states and 43873 transitions. [2023-12-22 01:03:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:03:37,340 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 25 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2023-12-22 01:03:37,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:03:37,370 INFO L225 Difference]: With dead ends: 35988 [2023-12-22 01:03:37,371 INFO L226 Difference]: Without dead ends: 29212 [2023-12-22 01:03:37,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:03:37,379 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 17981 mSDsluCounter, 9403 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17981 SdHoareTripleChecker+Valid, 10932 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:03:37,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17981 Valid, 10932 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:03:37,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29212 states. [2023-12-22 01:03:38,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29212 to 28094. [2023-12-22 01:03:38,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28094 states, 28092 states have (on average 1.2154705966111348) internal successors, (34145), 28093 states have internal predecessors, (34145), 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) [2023-12-22 01:03:38,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28094 states to 28094 states and 34145 transitions. [2023-12-22 01:03:38,237 INFO L78 Accepts]: Start accepts. Automaton has 28094 states and 34145 transitions. Word has length 139 [2023-12-22 01:03:38,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:03:38,237 INFO L495 AbstractCegarLoop]: Abstraction has 28094 states and 34145 transitions. [2023-12-22 01:03:38,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 25 states have internal predecessors, (266), 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) [2023-12-22 01:03:38,238 INFO L276 IsEmpty]: Start isEmpty. Operand 28094 states and 34145 transitions. [2023-12-22 01:03:38,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 01:03:38,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:03:38,242 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 01:03:38,247 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 [2023-12-22 01:03:38,445 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 [2023-12-22 01:03:38,446 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:03:38,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:03:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1256635738, now seen corresponding path program 1 times [2023-12-22 01:03:38,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:03:38,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100050514] [2023-12-22 01:03:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:03:38,446 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 [2023-12-22 01:03:38,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:03:38,447 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) [2023-12-22 01:03:38,449 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 [2023-12-22 01:03:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:03:38,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:03:38,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:03:39,913 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:39,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:03:40,627 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:40,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:03:40,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100050514] [2023-12-22 01:03:40,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100050514] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:03:40,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:03:40,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:03:40,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500024359] [2023-12-22 01:03:40,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:03:40,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:03:40,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:03:40,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:03:40,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:03:40,630 INFO L87 Difference]: Start difference. First operand 28094 states and 34145 transitions. Second operand has 26 states, 26 states have (on average 10.538461538461538) internal successors, (274), 26 states have internal predecessors, (274), 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) [2023-12-22 01:03:46,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:03:46,855 INFO L93 Difference]: Finished difference Result 39456 states and 47625 transitions. [2023-12-22 01:03:46,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 01:03:46,855 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.538461538461538) internal successors, (274), 26 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-22 01:03:46,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:03:46,889 INFO L225 Difference]: With dead ends: 39456 [2023-12-22 01:03:46,889 INFO L226 Difference]: Without dead ends: 31600 [2023-12-22 01:03:46,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 01:03:46,900 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 2354 mSDsluCounter, 19030 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 20649 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:03:46,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 20649 Invalid, 1988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-22 01:03:46,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31600 states. [2023-12-22 01:03:47,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31600 to 21772. [2023-12-22 01:03:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21772 states, 21770 states have (on average 1.2196141479099678) internal successors, (26551), 21771 states have internal predecessors, (26551), 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) [2023-12-22 01:03:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21772 states to 21772 states and 26551 transitions. [2023-12-22 01:03:47,641 INFO L78 Accepts]: Start accepts. Automaton has 21772 states and 26551 transitions. Word has length 140 [2023-12-22 01:03:47,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:03:47,642 INFO L495 AbstractCegarLoop]: Abstraction has 21772 states and 26551 transitions. [2023-12-22 01:03:47,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.538461538461538) internal successors, (274), 26 states have internal predecessors, (274), 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) [2023-12-22 01:03:47,642 INFO L276 IsEmpty]: Start isEmpty. Operand 21772 states and 26551 transitions. [2023-12-22 01:03:47,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 01:03:47,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:03:47,644 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 01:03:47,648 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 (31)] Ended with exit code 0 [2023-12-22 01:03:47,850 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 [2023-12-22 01:03:47,851 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:03:47,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:03:47,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1611341310, now seen corresponding path program 1 times [2023-12-22 01:03:47,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:03:47,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224573292] [2023-12-22 01:03:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:03:47,851 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 [2023-12-22 01:03:47,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:03:47,853 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) [2023-12-22 01:03:47,883 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 [2023-12-22 01:03:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:03:47,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:03:47,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:03:49,664 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 22 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:49,664 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:03:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 22 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:50,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:03:50,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224573292] [2023-12-22 01:03:50,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224573292] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:03:50,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:03:50,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:03:50,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115128968] [2023-12-22 01:03:50,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:03:50,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:03:50,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:03:50,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:03:50,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:03:50,409 INFO L87 Difference]: Start difference. First operand 21772 states and 26551 transitions. Second operand has 26 states, 26 states have (on average 10.346153846153847) internal successors, (269), 26 states have internal predecessors, (269), 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) [2023-12-22 01:03:56,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:03:56,994 INFO L93 Difference]: Finished difference Result 29772 states and 36140 transitions. [2023-12-22 01:03:56,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:03:56,994 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.346153846153847) internal successors, (269), 26 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-22 01:03:56,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:03:57,022 INFO L225 Difference]: With dead ends: 29772 [2023-12-22 01:03:57,023 INFO L226 Difference]: Without dead ends: 27402 [2023-12-22 01:03:57,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:03:57,029 INFO L413 NwaCegarLoop]: 1633 mSDtfsCounter, 3629 mSDsluCounter, 22230 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3629 SdHoareTripleChecker+Valid, 23863 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:03:57,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3629 Valid, 23863 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2206 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 01:03:57,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27402 states. [2023-12-22 01:03:57,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27402 to 24756. [2023-12-22 01:03:57,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24756 states, 24754 states have (on average 1.2154399289003797) internal successors, (30087), 24755 states have internal predecessors, (30087), 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) [2023-12-22 01:03:57,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24756 states to 24756 states and 30087 transitions. [2023-12-22 01:03:57,829 INFO L78 Accepts]: Start accepts. Automaton has 24756 states and 30087 transitions. Word has length 140 [2023-12-22 01:03:57,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:03:57,830 INFO L495 AbstractCegarLoop]: Abstraction has 24756 states and 30087 transitions. [2023-12-22 01:03:57,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.346153846153847) internal successors, (269), 26 states have internal predecessors, (269), 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) [2023-12-22 01:03:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 24756 states and 30087 transitions. [2023-12-22 01:03:57,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 01:03:57,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:03:57,832 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 01:03:57,838 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 [2023-12-22 01:03:58,036 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 [2023-12-22 01:03:58,036 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:03:58,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:03:58,037 INFO L85 PathProgramCache]: Analyzing trace with hash -897743910, now seen corresponding path program 1 times [2023-12-22 01:03:58,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:03:58,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695878456] [2023-12-22 01:03:58,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:03:58,037 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 [2023-12-22 01:03:58,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:03:58,038 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) [2023-12-22 01:03:58,039 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 [2023-12-22 01:03:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:03:58,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:03:58,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:03:59,685 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 31 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:03:59,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:04:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 31 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:04:00,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:04:00,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695878456] [2023-12-22 01:04:00,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695878456] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:04:00,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:04:00,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:04:00,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401668113] [2023-12-22 01:04:00,270 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:04:00,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:04:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:04:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:04:00,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:04:00,271 INFO L87 Difference]: Start difference. First operand 24756 states and 30087 transitions. Second operand has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 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) [2023-12-22 01:04:08,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:04:08,378 INFO L93 Difference]: Finished difference Result 35059 states and 42419 transitions. [2023-12-22 01:04:08,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:04:08,378 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-22 01:04:08,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:04:08,415 INFO L225 Difference]: With dead ends: 35059 [2023-12-22 01:04:08,415 INFO L226 Difference]: Without dead ends: 31849 [2023-12-22 01:04:08,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:04:08,425 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 2101 mSDsluCounter, 27248 mSDsCounter, 0 mSdLazyCounter, 2821 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2101 SdHoareTripleChecker+Valid, 28895 SdHoareTripleChecker+Invalid, 2837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:04:08,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2101 Valid, 28895 Invalid, 2837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 2821 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-22 01:04:08,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31849 states. [2023-12-22 01:04:09,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31849 to 28153. [2023-12-22 01:04:09,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28153 states, 28151 states have (on average 1.2113601648254058) internal successors, (34101), 28152 states have internal predecessors, (34101), 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) [2023-12-22 01:04:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28153 states to 28153 states and 34101 transitions. [2023-12-22 01:04:09,480 INFO L78 Accepts]: Start accepts. Automaton has 28153 states and 34101 transitions. Word has length 140 [2023-12-22 01:04:09,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:04:09,481 INFO L495 AbstractCegarLoop]: Abstraction has 28153 states and 34101 transitions. [2023-12-22 01:04:09,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 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) [2023-12-22 01:04:09,482 INFO L276 IsEmpty]: Start isEmpty. Operand 28153 states and 34101 transitions. [2023-12-22 01:04:09,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 01:04:09,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:04:09,485 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 01:04:09,489 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 (33)] Ended with exit code 0 [2023-12-22 01:04:09,690 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 [2023-12-22 01:04:09,690 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:04:09,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:04:09,691 INFO L85 PathProgramCache]: Analyzing trace with hash -399743106, now seen corresponding path program 1 times [2023-12-22 01:04:09,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:04:09,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716316851] [2023-12-22 01:04:09,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:04:09,692 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 [2023-12-22 01:04:09,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:04:09,693 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) [2023-12-22 01:04:09,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-22 01:04:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:04:09,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:04:09,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:04:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 40 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:04:11,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:04:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 40 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:04:11,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:04:11,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716316851] [2023-12-22 01:04:11,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716316851] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:04:11,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:04:11,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:04:11,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085615594] [2023-12-22 01:04:11,754 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:04:11,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:04:11,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:04:11,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:04:11,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:04:11,755 INFO L87 Difference]: Start difference. First operand 28153 states and 34101 transitions. Second operand has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 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) [2023-12-22 01:04:18,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:04:18,222 INFO L93 Difference]: Finished difference Result 41555 states and 50050 transitions. [2023-12-22 01:04:18,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-22 01:04:18,223 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-22 01:04:18,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:04:18,264 INFO L225 Difference]: With dead ends: 41555 [2023-12-22 01:04:18,264 INFO L226 Difference]: Without dead ends: 37185 [2023-12-22 01:04:18,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-22 01:04:18,273 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 5366 mSDsluCounter, 17648 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5366 SdHoareTripleChecker+Valid, 19299 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:04:18,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5366 Valid, 19299 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-22 01:04:18,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37185 states. [2023-12-22 01:04:19,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37185 to 31699. [2023-12-22 01:04:19,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31699 states, 31697 states have (on average 1.2070227466321735) internal successors, (38259), 31698 states have internal predecessors, (38259), 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) [2023-12-22 01:04:19,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31699 states to 31699 states and 38259 transitions. [2023-12-22 01:04:19,577 INFO L78 Accepts]: Start accepts. Automaton has 31699 states and 38259 transitions. Word has length 140 [2023-12-22 01:04:19,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:04:19,577 INFO L495 AbstractCegarLoop]: Abstraction has 31699 states and 38259 transitions. [2023-12-22 01:04:19,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 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) [2023-12-22 01:04:19,577 INFO L276 IsEmpty]: Start isEmpty. Operand 31699 states and 38259 transitions. [2023-12-22 01:04:19,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 01:04:19,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:04:19,580 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 01:04:19,583 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 (34)] Forceful destruction successful, exit code 0 [2023-12-22 01:04:19,783 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 [2023-12-22 01:04:19,783 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:04:19,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:04:19,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1691473318, now seen corresponding path program 1 times [2023-12-22 01:04:19,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:04:19,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843771316] [2023-12-22 01:04:19,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:04:19,784 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 [2023-12-22 01:04:19,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:04:19,785 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-12-22 01:04:19,790 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 (35)] Waiting until timeout for monitored process [2023-12-22 01:04:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:04:19,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:04:19,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:04:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:04:21,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:04:22,165 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:04:22,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:04:22,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843771316] [2023-12-22 01:04:22,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843771316] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:04:22,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:04:22,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:04:22,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953598658] [2023-12-22 01:04:22,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:04:22,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:04:22,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:04:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:04:22,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:04:22,167 INFO L87 Difference]: Start difference. First operand 31699 states and 38259 transitions. Second operand has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 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) [2023-12-22 01:04:32,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:04:32,293 INFO L93 Difference]: Finished difference Result 70470 states and 83499 transitions. [2023-12-22 01:04:32,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 01:04:32,293 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-22 01:04:32,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:04:32,364 INFO L225 Difference]: With dead ends: 70470 [2023-12-22 01:04:32,364 INFO L226 Difference]: Without dead ends: 64351 [2023-12-22 01:04:32,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 01:04:32,375 INFO L413 NwaCegarLoop]: 1668 mSDtfsCounter, 6877 mSDsluCounter, 22517 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6877 SdHoareTripleChecker+Valid, 24185 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:04:32,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6877 Valid, 24185 Invalid, 2557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-22 01:04:32,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64351 states. [2023-12-22 01:04:34,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64351 to 50636. [2023-12-22 01:04:35,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50636 states, 50634 states have (on average 1.1926571078721808) internal successors, (60389), 50635 states have internal predecessors, (60389), 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) [2023-12-22 01:04:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50636 states to 50636 states and 60389 transitions. [2023-12-22 01:04:35,071 INFO L78 Accepts]: Start accepts. Automaton has 50636 states and 60389 transitions. Word has length 140 [2023-12-22 01:04:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:04:35,072 INFO L495 AbstractCegarLoop]: Abstraction has 50636 states and 60389 transitions. [2023-12-22 01:04:35,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 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) [2023-12-22 01:04:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 50636 states and 60389 transitions. [2023-12-22 01:04:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-22 01:04:35,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:04:35,080 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:04:35,086 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 (35)] Forceful destruction successful, exit code 0 [2023-12-22 01:04:35,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:04:35,284 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:04:35,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:04:35,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1869812965, now seen corresponding path program 1 times [2023-12-22 01:04:35,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:04:35,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864856527] [2023-12-22 01:04:35,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:04:35,286 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 [2023-12-22 01:04:35,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:04:35,287 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-12-22 01:04:35,288 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 (36)] Waiting until timeout for monitored process [2023-12-22 01:04:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:04:35,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:04:35,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:04:35,889 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:04:35,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:04:35,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:04:35,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864856527] [2023-12-22 01:04:35,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864856527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:04:35,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:04:35,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:04:35,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333694564] [2023-12-22 01:04:35,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:04:35,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:04:35,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:04:35,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:04:35,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:04:35,891 INFO L87 Difference]: Start difference. First operand 50636 states and 60389 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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) [2023-12-22 01:05:16,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:05:16,907 INFO L93 Difference]: Finished difference Result 64907 states and 78481 transitions. [2023-12-22 01:05:16,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:05:16,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2023-12-22 01:05:16,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:05:16,984 INFO L225 Difference]: With dead ends: 64907 [2023-12-22 01:05:16,984 INFO L226 Difference]: Without dead ends: 54391 [2023-12-22 01:05:16,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:05:16,999 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 710 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2362 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 2742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:05:17,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 721 Invalid, 2742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2362 Invalid, 0 Unknown, 0 Unchecked, 38.6s Time] [2023-12-22 01:05:17,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54391 states. [2023-12-22 01:05:19,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54391 to 54391. [2023-12-22 01:05:19,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54391 states, 54389 states have (on average 1.1860854216845318) internal successors, (64510), 54390 states have internal predecessors, (64510), 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) [2023-12-22 01:05:19,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54391 states to 54391 states and 64510 transitions. [2023-12-22 01:05:19,823 INFO L78 Accepts]: Start accepts. Automaton has 54391 states and 64510 transitions. Word has length 163 [2023-12-22 01:05:19,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:05:19,824 INFO L495 AbstractCegarLoop]: Abstraction has 54391 states and 64510 transitions. [2023-12-22 01:05:19,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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) [2023-12-22 01:05:19,824 INFO L276 IsEmpty]: Start isEmpty. Operand 54391 states and 64510 transitions. [2023-12-22 01:05:19,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-22 01:05:19,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:05:19,840 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 01:05:19,843 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 (36)] Ended with exit code 0 [2023-12-22 01:05:20,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:05:20,048 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:05:20,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:05:20,048 INFO L85 PathProgramCache]: Analyzing trace with hash 633300120, now seen corresponding path program 1 times [2023-12-22 01:05:20,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:05:20,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842263416] [2023-12-22 01:05:20,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:05:20,049 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 [2023-12-22 01:05:20,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:05:20,051 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-12-22 01:05:20,077 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 (37)] Waiting until timeout for monitored process [2023-12-22 01:05:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:05:20,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:05:20,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:05:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:05:20,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:05:20,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:05:20,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842263416] [2023-12-22 01:05:20,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842263416] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:05:20,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:05:20,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:05:20,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633405957] [2023-12-22 01:05:20,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:05:20,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:05:20,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:05:20,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:05:20,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:05:20,866 INFO L87 Difference]: Start difference. First operand 54391 states and 64510 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-12-22 01:05:52,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:05:52,471 INFO L93 Difference]: Finished difference Result 62688 states and 75204 transitions. [2023-12-22 01:05:52,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:05:52,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2023-12-22 01:05:52,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:05:52,542 INFO L225 Difference]: With dead ends: 62688 [2023-12-22 01:05:52,542 INFO L226 Difference]: Without dead ends: 48383 [2023-12-22 01:05:52,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:05:52,557 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 781 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 2962 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 2962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:05:52,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 899 Invalid, 2962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2962 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time] [2023-12-22 01:05:52,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48383 states. [2023-12-22 01:05:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48383 to 48383. [2023-12-22 01:05:55,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48383 states, 48381 states have (on average 1.1940431160992953) internal successors, (57769), 48382 states have internal predecessors, (57769), 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) [2023-12-22 01:05:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48383 states to 48383 states and 57769 transitions. [2023-12-22 01:05:55,142 INFO L78 Accepts]: Start accepts. Automaton has 48383 states and 57769 transitions. Word has length 186 [2023-12-22 01:05:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:05:55,142 INFO L495 AbstractCegarLoop]: Abstraction has 48383 states and 57769 transitions. [2023-12-22 01:05:55,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-12-22 01:05:55,142 INFO L276 IsEmpty]: Start isEmpty. Operand 48383 states and 57769 transitions. [2023-12-22 01:05:55,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 01:05:55,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:05:55,160 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2023-12-22 01:05:55,163 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 (37)] Forceful destruction successful, exit code 0 [2023-12-22 01:05:55,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:05:55,364 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:05:55,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:05:55,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1122581160, now seen corresponding path program 2 times [2023-12-22 01:05:55,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:05:55,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647661716] [2023-12-22 01:05:55,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:05:55,365 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 [2023-12-22 01:05:55,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:05:55,366 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2023-12-22 01:05:55,368 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 (38)] Waiting until timeout for monitored process [2023-12-22 01:05:55,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:05:55,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:05:55,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:05:55,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:05:57,162 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-12-22 01:05:57,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:05:57,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:05:57,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647661716] [2023-12-22 01:05:57,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647661716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:05:57,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:05:57,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:05:57,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139576120] [2023-12-22 01:05:57,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:05:57,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:05:57,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:05:57,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:05:57,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:05:57,165 INFO L87 Difference]: Start difference. First operand 48383 states and 57769 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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) [2023-12-22 01:05:59,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:05:59,870 INFO L93 Difference]: Finished difference Result 63588 states and 76495 transitions. [2023-12-22 01:05:59,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:05:59,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2023-12-22 01:05:59,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:05:59,929 INFO L225 Difference]: With dead ends: 63588 [2023-12-22 01:05:59,930 INFO L226 Difference]: Without dead ends: 54482 [2023-12-22 01:05:59,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:05:59,937 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 3248 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:05:59,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3248 Valid, 3368 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:05:59,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54482 states. [2023-12-22 01:06:02,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54482 to 48247. [2023-12-22 01:06:02,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48247 states, 48245 states have (on average 1.1875427505440979) internal successors, (57293), 48246 states have internal predecessors, (57293), 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) [2023-12-22 01:06:02,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48247 states to 48247 states and 57293 transitions. [2023-12-22 01:06:02,526 INFO L78 Accepts]: Start accepts. Automaton has 48247 states and 57293 transitions. Word has length 193 [2023-12-22 01:06:02,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:06:02,527 INFO L495 AbstractCegarLoop]: Abstraction has 48247 states and 57293 transitions. [2023-12-22 01:06:02,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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) [2023-12-22 01:06:02,527 INFO L276 IsEmpty]: Start isEmpty. Operand 48247 states and 57293 transitions. [2023-12-22 01:06:02,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 01:06:02,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:06:02,541 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2023-12-22 01:06:02,546 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 (38)] Forceful destruction successful, exit code 0 [2023-12-22 01:06:02,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:06:02,748 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:06:02,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:06:02,748 INFO L85 PathProgramCache]: Analyzing trace with hash -767875588, now seen corresponding path program 2 times [2023-12-22 01:06:02,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:06:02,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188102226] [2023-12-22 01:06:02,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:06:02,749 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 [2023-12-22 01:06:02,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:06:02,751 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-12-22 01:06:02,756 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 (39)] Waiting until timeout for monitored process [2023-12-22 01:06:02,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:06:02,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:06:02,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:06:02,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:06:04,745 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-12-22 01:06:04,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:06:04,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:06:04,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188102226] [2023-12-22 01:06:04,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188102226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:06:04,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:06:04,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:06:04,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184036488] [2023-12-22 01:06:04,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:06:04,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:06:04,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:06:04,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:06:04,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:06:04,747 INFO L87 Difference]: Start difference. First operand 48247 states and 57293 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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) [2023-12-22 01:06:07,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:06:07,674 INFO L93 Difference]: Finished difference Result 59021 states and 70731 transitions. [2023-12-22 01:06:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:06:07,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2023-12-22 01:06:07,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:06:07,736 INFO L225 Difference]: With dead ends: 59021 [2023-12-22 01:06:07,736 INFO L226 Difference]: Without dead ends: 55595 [2023-12-22 01:06:07,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:06:07,744 INFO L413 NwaCegarLoop]: 1591 mSDtfsCounter, 4592 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4592 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:06:07,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4592 Valid, 3348 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:06:07,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55595 states. [2023-12-22 01:06:10,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55595 to 50867. [2023-12-22 01:06:10,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50867 states, 50865 states have (on average 1.1851371276909466) internal successors, (60282), 50866 states have internal predecessors, (60282), 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) [2023-12-22 01:06:10,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50867 states to 50867 states and 60282 transitions. [2023-12-22 01:06:10,678 INFO L78 Accepts]: Start accepts. Automaton has 50867 states and 60282 transitions. Word has length 193 [2023-12-22 01:06:10,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:06:10,679 INFO L495 AbstractCegarLoop]: Abstraction has 50867 states and 60282 transitions. [2023-12-22 01:06:10,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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) [2023-12-22 01:06:10,679 INFO L276 IsEmpty]: Start isEmpty. Operand 50867 states and 60282 transitions. [2023-12-22 01:06:10,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 01:06:10,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:06:10,693 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2023-12-22 01:06:10,696 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 (39)] Forceful destruction successful, exit code 0 [2023-12-22 01:06:10,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:06:10,896 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:06:10,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:06:10,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1018006488, now seen corresponding path program 2 times [2023-12-22 01:06:10,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:06:10,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106530584] [2023-12-22 01:06:10,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:06:10,897 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 [2023-12-22 01:06:10,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:06:10,898 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-12-22 01:06:10,901 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 (40)] Waiting until timeout for monitored process [2023-12-22 01:06:10,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:06:10,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:06:10,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:06:10,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:06:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2023-12-22 01:06:13,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:06:13,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:06:13,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106530584] [2023-12-22 01:06:13,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106530584] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:06:13,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:06:13,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:06:13,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801642312] [2023-12-22 01:06:13,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:06:13,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:06:13,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:06:13,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:06:13,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:06:13,097 INFO L87 Difference]: Start difference. First operand 50867 states and 60282 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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) [2023-12-22 01:06:15,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:06:15,888 INFO L93 Difference]: Finished difference Result 60760 states and 72622 transitions. [2023-12-22 01:06:15,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:06:15,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2023-12-22 01:06:15,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:06:15,952 INFO L225 Difference]: With dead ends: 60760 [2023-12-22 01:06:15,952 INFO L226 Difference]: Without dead ends: 57314 [2023-12-22 01:06:15,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:06:15,966 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 4586 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4586 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:06:15,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4586 Valid, 3350 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:06:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57314 states. [2023-12-22 01:06:18,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57314 to 53668. [2023-12-22 01:06:18,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53668 states, 53666 states have (on average 1.1830395408638616) internal successors, (63489), 53667 states have internal predecessors, (63489), 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) [2023-12-22 01:06:19,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53668 states to 53668 states and 63489 transitions. [2023-12-22 01:06:19,200 INFO L78 Accepts]: Start accepts. Automaton has 53668 states and 63489 transitions. Word has length 193 [2023-12-22 01:06:19,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:06:19,200 INFO L495 AbstractCegarLoop]: Abstraction has 53668 states and 63489 transitions. [2023-12-22 01:06:19,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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) [2023-12-22 01:06:19,200 INFO L276 IsEmpty]: Start isEmpty. Operand 53668 states and 63489 transitions. [2023-12-22 01:06:19,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 01:06:19,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:06:19,215 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2023-12-22 01:06:19,218 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 (40)] Ended with exit code 0 [2023-12-22 01:06:19,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:06:19,419 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:06:19,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:06:19,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1516007292, now seen corresponding path program 2 times [2023-12-22 01:06:19,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:06:19,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4808864] [2023-12-22 01:06:19,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:06:19,420 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 [2023-12-22 01:06:19,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:06:19,421 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2023-12-22 01:06:19,423 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 (41)] Waiting until timeout for monitored process [2023-12-22 01:06:19,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:06:19,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:06:19,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:06:19,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:06:21,349 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-22 01:06:21,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:06:21,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:06:21,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4808864] [2023-12-22 01:06:21,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4808864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:06:21,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:06:21,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:06:21,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718471290] [2023-12-22 01:06:21,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:06:21,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:06:21,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:06:21,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:06:21,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:06:21,350 INFO L87 Difference]: Start difference. First operand 53668 states and 63489 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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) [2023-12-22 01:06:24,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:06:24,324 INFO L93 Difference]: Finished difference Result 63105 states and 75263 transitions. [2023-12-22 01:06:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:06:24,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2023-12-22 01:06:24,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:06:24,397 INFO L225 Difference]: With dead ends: 63105 [2023-12-22 01:06:24,397 INFO L226 Difference]: Without dead ends: 59617 [2023-12-22 01:06:24,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:06:24,409 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 4589 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4589 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:06:24,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4589 Valid, 3374 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:06:24,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59617 states. [2023-12-22 01:06:27,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59617 to 56629. [2023-12-22 01:06:27,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56629 states, 56627 states have (on average 1.1812209723276883) internal successors, (66889), 56628 states have internal predecessors, (66889), 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) [2023-12-22 01:06:27,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56629 states to 56629 states and 66889 transitions. [2023-12-22 01:06:27,748 INFO L78 Accepts]: Start accepts. Automaton has 56629 states and 66889 transitions. Word has length 193 [2023-12-22 01:06:27,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:06:27,749 INFO L495 AbstractCegarLoop]: Abstraction has 56629 states and 66889 transitions. [2023-12-22 01:06:27,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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) [2023-12-22 01:06:27,749 INFO L276 IsEmpty]: Start isEmpty. Operand 56629 states and 66889 transitions. [2023-12-22 01:06:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 01:06:27,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:06:27,790 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2023-12-22 01:06:27,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-22 01:06:27,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:06:27,991 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:06:27,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:06:27,991 INFO L85 PathProgramCache]: Analyzing trace with hash 224277080, now seen corresponding path program 2 times [2023-12-22 01:06:27,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:06:27,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812862651] [2023-12-22 01:06:27,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:06:27,992 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 [2023-12-22 01:06:27,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:06:27,993 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-12-22 01:06:27,994 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 (42)] Waiting until timeout for monitored process [2023-12-22 01:06:28,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:06:28,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:06:28,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:06:28,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:06:29,939 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-12-22 01:06:29,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:06:29,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:06:29,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812862651] [2023-12-22 01:06:29,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812862651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:06:29,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:06:29,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:06:29,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183788784] [2023-12-22 01:06:29,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:06:29,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:06:29,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:06:29,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:06:29,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:06:29,941 INFO L87 Difference]: Start difference. First operand 56629 states and 66889 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 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) [2023-12-22 01:06:33,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:06:33,095 INFO L93 Difference]: Finished difference Result 66153 states and 78764 transitions. [2023-12-22 01:06:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:06:33,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2023-12-22 01:06:33,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:06:33,155 INFO L225 Difference]: With dead ends: 66153 [2023-12-22 01:06:33,156 INFO L226 Difference]: Without dead ends: 62587 [2023-12-22 01:06:33,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:06:33,163 INFO L413 NwaCegarLoop]: 1591 mSDtfsCounter, 3179 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3179 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:06:33,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3179 Valid, 3375 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:06:33,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62587 states. [2023-12-22 01:06:36,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62587 to 59599. [2023-12-22 01:06:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59599 states, 59597 states have (on average 1.1795727972884542) internal successors, (70299), 59598 states have internal predecessors, (70299), 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) [2023-12-22 01:06:36,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59599 states to 59599 states and 70299 transitions. [2023-12-22 01:06:36,511 INFO L78 Accepts]: Start accepts. Automaton has 59599 states and 70299 transitions. Word has length 193 [2023-12-22 01:06:36,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:06:36,511 INFO L495 AbstractCegarLoop]: Abstraction has 59599 states and 70299 transitions. [2023-12-22 01:06:36,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 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) [2023-12-22 01:06:36,511 INFO L276 IsEmpty]: Start isEmpty. Operand 59599 states and 70299 transitions. [2023-12-22 01:06:36,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 01:06:36,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:06:36,526 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2023-12-22 01:06:36,530 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 (42)] Forceful destruction successful, exit code 0 [2023-12-22 01:06:36,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:06:36,731 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:06:36,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:06:36,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1046007747, now seen corresponding path program 1 times [2023-12-22 01:06:36,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:06:36,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576267481] [2023-12-22 01:06:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:06:36,732 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 [2023-12-22 01:06:36,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:06:36,734 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2023-12-22 01:06:36,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-22 01:06:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:06:36,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:06:36,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:06:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:06:39,623 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:06:40,547 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:06:40,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:06:40,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576267481] [2023-12-22 01:06:40,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576267481] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:06:40,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:06:40,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:06:40,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539091792] [2023-12-22 01:06:40,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:06:40,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:06:40,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:06:40,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:06:40,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:06:40,549 INFO L87 Difference]: Start difference. First operand 59599 states and 70299 transitions. Second operand has 36 states, 36 states have (on average 10.444444444444445) internal successors, (376), 36 states have internal predecessors, (376), 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) [2023-12-22 01:07:01,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:07:01,669 INFO L93 Difference]: Finished difference Result 76105 states and 89586 transitions. [2023-12-22 01:07:01,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:07:01,670 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.444444444444445) internal successors, (376), 36 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2023-12-22 01:07:01,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:07:01,743 INFO L225 Difference]: With dead ends: 76105 [2023-12-22 01:07:01,744 INFO L226 Difference]: Without dead ends: 69719 [2023-12-22 01:07:01,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4412 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:07:01,755 INFO L413 NwaCegarLoop]: 1755 mSDtfsCounter, 2575 mSDsluCounter, 30626 mSDsCounter, 0 mSdLazyCounter, 5695 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 32381 SdHoareTripleChecker+Invalid, 5715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:07:01,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2575 Valid, 32381 Invalid, 5715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 5695 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-22 01:07:01,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69719 states. [2023-12-22 01:07:04,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69719 to 36625. [2023-12-22 01:07:04,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36625 states, 36623 states have (on average 1.191027496382055) internal successors, (43619), 36624 states have internal predecessors, (43619), 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) [2023-12-22 01:07:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36625 states to 36625 states and 43619 transitions. [2023-12-22 01:07:04,097 INFO L78 Accepts]: Start accepts. Automaton has 36625 states and 43619 transitions. Word has length 194 [2023-12-22 01:07:04,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:07:04,097 INFO L495 AbstractCegarLoop]: Abstraction has 36625 states and 43619 transitions. [2023-12-22 01:07:04,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.444444444444445) internal successors, (376), 36 states have internal predecessors, (376), 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) [2023-12-22 01:07:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 36625 states and 43619 transitions. [2023-12-22 01:07:04,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 01:07:04,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:07:04,105 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2023-12-22 01:07:04,108 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 (43)] Ended with exit code 0 [2023-12-22 01:07:04,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:07:04,308 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:07:04,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:07:04,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1518238239, now seen corresponding path program 1 times [2023-12-22 01:07:04,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:07:04,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030318549] [2023-12-22 01:07:04,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:07:04,309 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 [2023-12-22 01:07:04,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:07:04,310 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2023-12-22 01:07:04,336 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 (44)] Waiting until timeout for monitored process [2023-12-22 01:07:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:07:04,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:07:04,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:07:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:07:07,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:07:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:07:08,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:07:08,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030318549] [2023-12-22 01:07:08,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030318549] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:07:08,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:07:08,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:07:08,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856929053] [2023-12-22 01:07:08,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:07:08,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:07:08,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:07:08,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:07:08,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:07:08,114 INFO L87 Difference]: Start difference. First operand 36625 states and 43619 transitions. Second operand has 36 states, 36 states have (on average 10.305555555555555) internal successors, (371), 36 states have internal predecessors, (371), 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) [2023-12-22 01:07:29,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:07:29,372 INFO L93 Difference]: Finished difference Result 51438 states and 60965 transitions. [2023-12-22 01:07:29,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-22 01:07:29,372 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.305555555555555) internal successors, (371), 36 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2023-12-22 01:07:29,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:07:29,414 INFO L225 Difference]: With dead ends: 51438 [2023-12-22 01:07:29,414 INFO L226 Difference]: Without dead ends: 44990 [2023-12-22 01:07:29,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4491 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=2331, Invalid=14961, Unknown=0, NotChecked=0, Total=17292 [2023-12-22 01:07:29,428 INFO L413 NwaCegarLoop]: 1760 mSDtfsCounter, 5794 mSDsluCounter, 33710 mSDsCounter, 0 mSdLazyCounter, 6111 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5794 SdHoareTripleChecker+Valid, 35470 SdHoareTripleChecker+Invalid, 6141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:07:29,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5794 Valid, 35470 Invalid, 6141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 6111 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-12-22 01:07:29,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44990 states. [2023-12-22 01:07:31,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44990 to 38584. [2023-12-22 01:07:31,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38584 states, 38582 states have (on average 1.18868902597066) internal successors, (45862), 38583 states have internal predecessors, (45862), 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) [2023-12-22 01:07:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38584 states to 38584 states and 45862 transitions. [2023-12-22 01:07:31,937 INFO L78 Accepts]: Start accepts. Automaton has 38584 states and 45862 transitions. Word has length 194 [2023-12-22 01:07:31,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:07:31,937 INFO L495 AbstractCegarLoop]: Abstraction has 38584 states and 45862 transitions. [2023-12-22 01:07:31,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.305555555555555) internal successors, (371), 36 states have internal predecessors, (371), 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) [2023-12-22 01:07:31,937 INFO L276 IsEmpty]: Start isEmpty. Operand 38584 states and 45862 transitions. [2023-12-22 01:07:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 01:07:31,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:07:31,944 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2023-12-22 01:07:31,951 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 (44)] Forceful destruction successful, exit code 0 [2023-12-22 01:07:32,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:07:32,148 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:07:32,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:07:32,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1034884797, now seen corresponding path program 1 times [2023-12-22 01:07:32,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:07:32,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975831632] [2023-12-22 01:07:32,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:07:32,149 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 [2023-12-22 01:07:32,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:07:32,150 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2023-12-22 01:07:32,150 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 (45)] Waiting until timeout for monitored process [2023-12-22 01:07:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:07:32,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:07:32,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:07:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:07:34,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:07:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:07:35,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:07:35,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975831632] [2023-12-22 01:07:35,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975831632] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:07:35,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:07:35,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:07:35,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941778678] [2023-12-22 01:07:35,607 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:07:35,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:07:35,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:07:35,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:07:35,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:07:35,608 INFO L87 Difference]: Start difference. First operand 38584 states and 45862 transitions. Second operand has 36 states, 36 states have (on average 10.166666666666666) internal successors, (366), 36 states have internal predecessors, (366), 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) [2023-12-22 01:08:01,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:08:01,660 INFO L93 Difference]: Finished difference Result 54573 states and 64475 transitions. [2023-12-22 01:08:01,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-22 01:08:01,661 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.166666666666666) internal successors, (366), 36 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2023-12-22 01:08:01,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:08:01,707 INFO L225 Difference]: With dead ends: 54573 [2023-12-22 01:08:01,707 INFO L226 Difference]: Without dead ends: 47935 [2023-12-22 01:08:01,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6252 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=2857, Invalid=19195, Unknown=0, NotChecked=0, Total=22052 [2023-12-22 01:08:01,724 INFO L413 NwaCegarLoop]: 1778 mSDtfsCounter, 4060 mSDsluCounter, 37629 mSDsCounter, 0 mSdLazyCounter, 7303 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4060 SdHoareTripleChecker+Valid, 39407 SdHoareTripleChecker+Invalid, 7336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 7303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:08:01,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4060 Valid, 39407 Invalid, 7336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 7303 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-12-22 01:08:01,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47935 states. [2023-12-22 01:08:04,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47935 to 40237. [2023-12-22 01:08:04,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40237 states, 40235 states have (on average 1.1868273890891015) internal successors, (47752), 40236 states have internal predecessors, (47752), 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) [2023-12-22 01:08:04,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40237 states to 40237 states and 47752 transitions. [2023-12-22 01:08:04,460 INFO L78 Accepts]: Start accepts. Automaton has 40237 states and 47752 transitions. Word has length 194 [2023-12-22 01:08:04,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:08:04,460 INFO L495 AbstractCegarLoop]: Abstraction has 40237 states and 47752 transitions. [2023-12-22 01:08:04,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.166666666666666) internal successors, (366), 36 states have internal predecessors, (366), 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) [2023-12-22 01:08:04,460 INFO L276 IsEmpty]: Start isEmpty. Operand 40237 states and 47752 transitions. [2023-12-22 01:08:04,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 01:08:04,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:08:04,469 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2023-12-22 01:08:04,473 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 (45)] Forceful destruction successful, exit code 0 [2023-12-22 01:08:04,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:08:04,673 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:08:04,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:08:04,673 INFO L85 PathProgramCache]: Analyzing trace with hash -354046111, now seen corresponding path program 1 times [2023-12-22 01:08:04,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:08:04,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314751153] [2023-12-22 01:08:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:08:04,674 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 [2023-12-22 01:08:04,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:08:04,675 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2023-12-22 01:08:04,677 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 (46)] Waiting until timeout for monitored process [2023-12-22 01:08:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:08:04,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:08:04,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:08:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:08:07,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:08:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:08:08,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:08:08,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314751153] [2023-12-22 01:08:08,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314751153] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:08:08,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:08:08,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:08:08,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336013213] [2023-12-22 01:08:08,632 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:08:08,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:08:08,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:08:08,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:08:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:08:08,634 INFO L87 Difference]: Start difference. First operand 40237 states and 47752 transitions. Second operand has 36 states, 36 states have (on average 10.027777777777779) internal successors, (361), 36 states have internal predecessors, (361), 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) [2023-12-22 01:08:38,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:08:38,837 INFO L93 Difference]: Finished difference Result 57954 states and 68172 transitions. [2023-12-22 01:08:38,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 01:08:38,838 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.027777777777779) internal successors, (361), 36 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2023-12-22 01:08:38,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:08:38,894 INFO L225 Difference]: With dead ends: 57954 [2023-12-22 01:08:38,894 INFO L226 Difference]: Without dead ends: 50798 [2023-12-22 01:08:38,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6979 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 01:08:38,907 INFO L413 NwaCegarLoop]: 1793 mSDtfsCounter, 3977 mSDsluCounter, 41220 mSDsCounter, 0 mSdLazyCounter, 8443 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3977 SdHoareTripleChecker+Valid, 43013 SdHoareTripleChecker+Invalid, 8472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 8443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:08:38,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3977 Valid, 43013 Invalid, 8472 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 8443 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2023-12-22 01:08:38,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50798 states. [2023-12-22 01:08:41,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50798 to 41192. [2023-12-22 01:08:41,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41192 states, 41190 states have (on average 1.1852634134498665) internal successors, (48821), 41191 states have internal predecessors, (48821), 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) [2023-12-22 01:08:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41192 states to 41192 states and 48821 transitions. [2023-12-22 01:08:41,829 INFO L78 Accepts]: Start accepts. Automaton has 41192 states and 48821 transitions. Word has length 194 [2023-12-22 01:08:41,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:08:41,829 INFO L495 AbstractCegarLoop]: Abstraction has 41192 states and 48821 transitions. [2023-12-22 01:08:41,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.027777777777779) internal successors, (361), 36 states have internal predecessors, (361), 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) [2023-12-22 01:08:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand 41192 states and 48821 transitions. [2023-12-22 01:08:41,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-22 01:08:41,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:08:41,836 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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] [2023-12-22 01:08:41,840 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 (46)] Ended with exit code 0 [2023-12-22 01:08:42,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:08:42,040 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:08:42,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:08:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash -907308096, now seen corresponding path program 1 times [2023-12-22 01:08:42,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:08:42,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112922830] [2023-12-22 01:08:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:08:42,041 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 [2023-12-22 01:08:42,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:08:42,042 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2023-12-22 01:08:42,043 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 (47)] Waiting until timeout for monitored process [2023-12-22 01:08:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:08:42,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:08:42,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:08:44,494 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 32 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:08:44,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:08:45,633 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 32 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:08:45,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:08:45,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112922830] [2023-12-22 01:08:45,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112922830] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:08:45,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:08:45,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:08:45,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52005363] [2023-12-22 01:08:45,634 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:08:45,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:08:45,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:08:45,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:08:45,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:08:45,635 INFO L87 Difference]: Start difference. First operand 41192 states and 48821 transitions. Second operand has 36 states, 36 states have (on average 10.61111111111111) internal successors, (382), 36 states have internal predecessors, (382), 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) [2023-12-22 01:09:10,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:09:10,684 INFO L93 Difference]: Finished difference Result 88955 states and 103903 transitions. [2023-12-22 01:09:10,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 01:09:10,684 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.61111111111111) internal successors, (382), 36 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2023-12-22 01:09:10,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:09:10,767 INFO L225 Difference]: With dead ends: 88955 [2023-12-22 01:09:10,767 INFO L226 Difference]: Without dead ends: 82209 [2023-12-22 01:09:10,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 01:09:10,780 INFO L413 NwaCegarLoop]: 1738 mSDtfsCounter, 6947 mSDsluCounter, 36895 mSDsCounter, 0 mSdLazyCounter, 6474 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6947 SdHoareTripleChecker+Valid, 38633 SdHoareTripleChecker+Invalid, 6496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 6474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:09:10,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6947 Valid, 38633 Invalid, 6496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 6474 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-22 01:09:10,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82209 states. [2023-12-22 01:09:16,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82209 to 73546. [2023-12-22 01:09:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73546 states, 73544 states have (on average 1.1717475252909824) internal successors, (86175), 73545 states have internal predecessors, (86175), 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) [2023-12-22 01:09:16,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73546 states to 73546 states and 86175 transitions. [2023-12-22 01:09:16,625 INFO L78 Accepts]: Start accepts. Automaton has 73546 states and 86175 transitions. Word has length 195 [2023-12-22 01:09:16,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:09:16,626 INFO L495 AbstractCegarLoop]: Abstraction has 73546 states and 86175 transitions. [2023-12-22 01:09:16,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.61111111111111) internal successors, (382), 36 states have internal predecessors, (382), 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) [2023-12-22 01:09:16,626 INFO L276 IsEmpty]: Start isEmpty. Operand 73546 states and 86175 transitions. [2023-12-22 01:09:16,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-22 01:09:16,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:09:16,654 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 01:09:16,659 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 (47)] Forceful destruction successful, exit code 0 [2023-12-22 01:09:16,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:09:16,858 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:09:16,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:09:16,858 INFO L85 PathProgramCache]: Analyzing trace with hash -868552277, now seen corresponding path program 1 times [2023-12-22 01:09:16,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:09:16,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492091663] [2023-12-22 01:09:16,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:09:16,859 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 [2023-12-22 01:09:16,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:09:16,865 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2023-12-22 01:09:16,866 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 (48)] Waiting until timeout for monitored process [2023-12-22 01:09:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:09:16,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:09:16,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:09:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:09:17,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:09:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:09:17,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:09:17,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492091663] [2023-12-22 01:09:17,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492091663] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 01:09:17,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 01:09:17,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 01:09:17,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827415914] [2023-12-22 01:09:17,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:09:17,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:09:17,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:09:17,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:09:17,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 01:09:17,635 INFO L87 Difference]: Start difference. First operand 73546 states and 86175 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2023-12-22 01:10:44,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 01:11:27,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:27,538 INFO L93 Difference]: Finished difference Result 89319 states and 106719 transitions. [2023-12-22 01:11:27,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:27,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2023-12-22 01:11:27,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:27,618 INFO L225 Difference]: With dead ends: 89319 [2023-12-22 01:11:27,618 INFO L226 Difference]: Without dead ends: 81056 [2023-12-22 01:11:27,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 01:11:27,633 INFO L413 NwaCegarLoop]: 1015 mSDtfsCounter, 748 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 3141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:11:27,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1119 Invalid, 3141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 124.3s Time] [2023-12-22 01:11:27,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81056 states. [2023-12-22 01:11:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81056 to 81056. [2023-12-22 01:11:33,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81056 states, 81054 states have (on average 1.180830063908012) internal successors, (95711), 81055 states have internal predecessors, (95711), 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) [2023-12-22 01:11:33,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81056 states to 81056 states and 95711 transitions. [2023-12-22 01:11:33,511 INFO L78 Accepts]: Start accepts. Automaton has 81056 states and 95711 transitions. Word has length 231 [2023-12-22 01:11:33,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:33,511 INFO L495 AbstractCegarLoop]: Abstraction has 81056 states and 95711 transitions. [2023-12-22 01:11:33,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2023-12-22 01:11:33,511 INFO L276 IsEmpty]: Start isEmpty. Operand 81056 states and 95711 transitions. [2023-12-22 01:11:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-22 01:11:33,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:33,546 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 01:11:33,549 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 (48)] Forceful destruction successful, exit code 0 [2023-12-22 01:11:33,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:11:33,749 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:33,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:33,750 INFO L85 PathProgramCache]: Analyzing trace with hash 842129166, now seen corresponding path program 1 times [2023-12-22 01:11:33,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:33,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551372814] [2023-12-22 01:11:33,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:33,751 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 [2023-12-22 01:11:33,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:33,752 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2023-12-22 01:11:33,780 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 (49)] Waiting until timeout for monitored process [2023-12-22 01:11:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:33,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:33,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:33,976 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:33,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:33,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:33,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551372814] [2023-12-22 01:11:33,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551372814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:33,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:33,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:33,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681321184] [2023-12-22 01:11:33,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:33,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:33,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:33,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:33,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:33,978 INFO L87 Difference]: Start difference. First operand 81056 states and 95711 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-12-22 01:12:27,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:12:27,106 INFO L93 Difference]: Finished difference Result 102086 states and 123406 transitions. [2023-12-22 01:12:27,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:12:27,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2023-12-22 01:12:27,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:12:27,195 INFO L225 Difference]: With dead ends: 102086 [2023-12-22 01:12:27,196 INFO L226 Difference]: Without dead ends: 86313 [2023-12-22 01:12:27,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:12:27,214 INFO L413 NwaCegarLoop]: 1504 mSDtfsCounter, 670 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 2832 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 3212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:12:27,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1609 Invalid, 3212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2832 Invalid, 0 Unknown, 0 Unchecked, 47.5s Time] [2023-12-22 01:12:27,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86313 states. [2023-12-22 01:12:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86313 to 86313. [2023-12-22 01:12:32,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86313 states, 86311 states have (on average 1.1876122394596285) internal successors, (102504), 86312 states have internal predecessors, (102504), 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) [2023-12-22 01:12:32,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86313 states to 86313 states and 102504 transitions. [2023-12-22 01:12:32,872 INFO L78 Accepts]: Start accepts. Automaton has 86313 states and 102504 transitions. Word has length 245 [2023-12-22 01:12:32,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:12:32,872 INFO L495 AbstractCegarLoop]: Abstraction has 86313 states and 102504 transitions. [2023-12-22 01:12:32,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-12-22 01:12:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand 86313 states and 102504 transitions. [2023-12-22 01:12:32,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 01:12:32,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:12:32,907 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 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, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:12:32,912 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 (49)] Forceful destruction successful, exit code 0 [2023-12-22 01:12:33,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:12:33,115 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:12:33,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:12:33,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2585157, now seen corresponding path program 2 times [2023-12-22 01:12:33,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:12:33,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289311123] [2023-12-22 01:12:33,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:12:33,116 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 [2023-12-22 01:12:33,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:12:33,117 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2023-12-22 01:12:33,119 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 (50)] Waiting until timeout for monitored process [2023-12-22 01:12:33,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 01:12:33,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:12:33,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 01:12:33,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:12:36,858 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 54 proven. 524 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:12:36,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:12:38,274 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 54 proven. 524 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:12:38,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:12:38,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289311123] [2023-12-22 01:12:38,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289311123] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:12:38,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:12:38,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 01:12:38,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124912509] [2023-12-22 01:12:38,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:12:38,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 01:12:38,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:12:38,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 01:12:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 01:12:38,276 INFO L87 Difference]: Start difference. First operand 86313 states and 102504 transitions. Second operand has 46 states, 46 states have (on average 10.478260869565217) internal successors, (482), 46 states have internal predecessors, (482), 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) [2023-12-22 01:13:35,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:13:35,360 INFO L93 Difference]: Finished difference Result 103275 states and 122237 transitions. [2023-12-22 01:13:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2023-12-22 01:13:35,361 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.478260869565217) internal successors, (482), 46 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2023-12-22 01:13:35,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:13:35,456 INFO L225 Difference]: With dead ends: 103275 [2023-12-22 01:13:35,456 INFO L226 Difference]: Without dead ends: 96632 [2023-12-22 01:13:35,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13783 ImplicationChecksByTransitivity, 31.1s TimeCoverageRelationStatistics Valid=5103, Invalid=41337, Unknown=0, NotChecked=0, Total=46440 [2023-12-22 01:13:35,474 INFO L413 NwaCegarLoop]: 1866 mSDtfsCounter, 4213 mSDsluCounter, 58372 mSDsCounter, 0 mSdLazyCounter, 15539 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4213 SdHoareTripleChecker+Valid, 60238 SdHoareTripleChecker+Invalid, 15569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 15539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:13:35,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4213 Valid, 60238 Invalid, 15569 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [30 Valid, 15539 Invalid, 0 Unknown, 0 Unchecked, 21.2s Time] [2023-12-22 01:13:35,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96632 states. [2023-12-22 01:13:39,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96632 to 55483. [2023-12-22 01:13:39,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55483 states, 55481 states have (on average 1.206052522485175) internal successors, (66913), 55482 states have internal predecessors, (66913), 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) [2023-12-22 01:13:39,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55483 states to 55483 states and 66913 transitions. [2023-12-22 01:13:39,885 INFO L78 Accepts]: Start accepts. Automaton has 55483 states and 66913 transitions. Word has length 247 [2023-12-22 01:13:39,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:13:39,885 INFO L495 AbstractCegarLoop]: Abstraction has 55483 states and 66913 transitions. [2023-12-22 01:13:39,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.478260869565217) internal successors, (482), 46 states have internal predecessors, (482), 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) [2023-12-22 01:13:39,885 INFO L276 IsEmpty]: Start isEmpty. Operand 55483 states and 66913 transitions. [2023-12-22 01:13:39,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 01:13:39,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:13:39,899 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 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, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:13:39,904 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 (50)] Forceful destruction successful, exit code 0 [2023-12-22 01:13:40,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:13:40,105 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:13:40,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:13:40,105 INFO L85 PathProgramCache]: Analyzing trace with hash -474815649, now seen corresponding path program 2 times [2023-12-22 01:13:40,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:13:40,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050545564] [2023-12-22 01:13:40,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:13:40,106 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 [2023-12-22 01:13:40,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:13:40,110 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2023-12-22 01:13:40,111 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 (51)] Waiting until timeout for monitored process [2023-12-22 01:13:40,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 01:13:40,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:13:40,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 01:13:40,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:13:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 77 proven. 501 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:44,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:13:46,197 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 77 proven. 501 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:46,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:13:46,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050545564] [2023-12-22 01:13:46,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050545564] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:13:46,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:13:46,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 01:13:46,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633335247] [2023-12-22 01:13:46,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:13:46,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 01:13:46,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:13:46,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 01:13:46,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 01:13:46,199 INFO L87 Difference]: Start difference. First operand 55483 states and 66913 transitions. Second operand has 46 states, 46 states have (on average 10.369565217391305) internal successors, (477), 46 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-22 01:14:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2023-12-22 01:14:02,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2861 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=1461, Invalid=11195, Unknown=0, NotChecked=0, Total=12656 [2023-12-22 01:14:02,634 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1454 mSDsluCounter, 9112 mSDsCounter, 0 mSdLazyCounter, 6378 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 9442 SdHoareTripleChecker+Invalid, 6395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 6378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:14:02,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 9442 Invalid, 6395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 6378 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-12-22 01:14:02,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 01:14:02,640 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 (51)] Ended with exit code 0 [2023-12-22 01:14:02,646 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 01:14:02,646 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 01:14:02,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:14:02,836 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (55483states) and FLOYD_HOARE automaton (currently 72 states, 46 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 113 known predicates. [2023-12-22 01:14:02,837 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 01:14:02,839 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:14:02,841 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 01:14:02,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:14:02 BoogieIcfgContainer [2023-12-22 01:14:02,842 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 01:14:02,842 INFO L158 Benchmark]: Toolchain (without parser) took 859917.44ms. Allocated memory was 310.4MB in the beginning and 4.0GB in the end (delta: 3.7GB). Free memory was 247.9MB in the beginning and 2.6GB in the end (delta: -2.3GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-22 01:14:02,842 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 197.1MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 01:14:02,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1341.36ms. Allocated memory is still 310.4MB. Free memory was 247.9MB in the beginning and 144.3MB in the end (delta: 103.6MB). Peak memory consumption was 104.1MB. Max. memory is 8.0GB. [2023-12-22 01:14:02,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 224.85ms. Allocated memory is still 310.4MB. Free memory was 144.3MB in the beginning and 234.3MB in the end (delta: -90.0MB). Peak memory consumption was 25.3MB. Max. memory is 8.0GB. [2023-12-22 01:14:02,842 INFO L158 Benchmark]: Boogie Preprocessor took 246.98ms. Allocated memory is still 310.4MB. Free memory was 234.3MB in the beginning and 195.0MB in the end (delta: 39.3MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-12-22 01:14:02,842 INFO L158 Benchmark]: RCFGBuilder took 25371.41ms. Allocated memory was 310.4MB in the beginning and 428.9MB in the end (delta: 118.5MB). Free memory was 195.0MB in the beginning and 307.0MB in the end (delta: -112.1MB). Peak memory consumption was 211.4MB. Max. memory is 8.0GB. [2023-12-22 01:14:02,843 INFO L158 Benchmark]: TraceAbstraction took 832726.65ms. Allocated memory was 428.9MB in the beginning and 4.0GB in the end (delta: 3.6GB). Free memory was 306.0MB in the beginning and 2.6GB in the end (delta: -2.3GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-22 01:14:02,843 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 197.1MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1341.36ms. Allocated memory is still 310.4MB. Free memory was 247.9MB in the beginning and 144.3MB in the end (delta: 103.6MB). Peak memory consumption was 104.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 224.85ms. Allocated memory is still 310.4MB. Free memory was 144.3MB in the beginning and 234.3MB in the end (delta: -90.0MB). Peak memory consumption was 25.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 246.98ms. Allocated memory is still 310.4MB. Free memory was 234.3MB in the beginning and 195.0MB in the end (delta: 39.3MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * RCFGBuilder took 25371.41ms. Allocated memory was 310.4MB in the beginning and 428.9MB in the end (delta: 118.5MB). Free memory was 195.0MB in the beginning and 307.0MB in the end (delta: -112.1MB). Peak memory consumption was 211.4MB. Max. memory is 8.0GB. * TraceAbstraction took 832726.65ms. Allocated memory was 428.9MB in the beginning and 4.0GB in the end (delta: 3.6GB). Free memory was 306.0MB in the beginning and 2.6GB in the end (delta: -2.3GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 437]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 437). Cancelled while NwaCegarLoop was constructing difference of abstraction (55483states) and FLOYD_HOARE automaton (currently 72 states, 46 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 113 known predicates. - TimeoutResultAtElement [Line: 512]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 512). Cancelled while NwaCegarLoop was constructing difference of abstraction (55483states) and FLOYD_HOARE automaton (currently 72 states, 46 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 113 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 836 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 832.7s, OverallIterations: 50, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 683.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181535 SdHoareTripleChecker+Valid, 488.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181535 mSDsluCounter, 541790 SdHoareTripleChecker+Invalid, 428.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 469019 mSDsCounter, 3892 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95516 IncrementalHoareTripleChecker+Invalid, 99408 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3892 mSolverCounterUnsat, 72771 mSDtfsCounter, 95516 mSolverCounterSat, 1.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10662 GetRequests, 8938 SyntacticMatches, 0 SemanticMatches, 1723 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50367 ImplicationChecksByTransitivity, 137.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86313occurred in iteration=48, InterpolantAutomatonStates: 1255, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 67.3s AutomataMinimizationTime, 49 MinimizatonAttempts, 177146 StatesRemovedByMinimization, 40 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 65.7s InterpolantComputationTime, 6175 NumberOfCodeBlocks, 5555 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 9542 ConstructedInterpolants, 2549 QuantifiedInterpolants, 122954 SizeOfPredicates, 229 NumberOfNonLiveVariables, 12319 ConjunctsInSsa, 406 ConjunctsInUnsatCore, 73 InterpolantComputations, 28 PerfectInterpolantSequences, 3495/9601 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown