/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/bitvector/s3_srvr_2a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 21:29:50,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 21:29:50,585 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 21:29:50,589 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 21:29:50,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 21:29:50,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 21:29:50,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 21:29:50,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 21:29:50,612 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 21:29:50,619 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 21:29:50,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 21:29:50,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 21:29:50,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 21:29:50,622 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 21:29:50,622 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 21:29:50,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 21:29:50,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 21:29:50,623 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 21:29:50,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 21:29:50,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 21:29:50,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 21:29:50,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 21:29:50,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 21:29:50,624 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 21:29:50,625 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 21:29:50,625 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 21:29:50,625 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 21:29:50,625 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 21:29:50,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 21:29:50,626 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 21:29:50,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 21:29:50,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 21:29:50,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 21:29:50,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 21:29:50,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:29:50,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 21:29:50,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 21:29:50,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 21:29:50,629 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 21:29:50,629 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 21:29:50,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 21:29:50,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 21:29:50,629 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 21:29:50,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 21:29:50,630 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 21:29:50,630 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 21:29:50,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 21:29:50,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 21:29:50,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 21:29:50,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 21:29:50,830 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 21:29:50,832 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 21:29:50,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c [2023-12-21 21:29:52,046 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 21:29:52,243 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 21:29:52,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c [2023-12-21 21:29:52,257 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fc7b51ad/b367bbad09724ec58e589bfacf66d0cc/FLAG282d87bff [2023-12-21 21:29:52,620 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fc7b51ad/b367bbad09724ec58e589bfacf66d0cc [2023-12-21 21:29:52,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 21:29:52,623 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 21:29:52,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 21:29:52,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 21:29:52,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 21:29:52,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:52,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53814bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52, skipping insertion in model container [2023-12-21 21:29:52,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:52,679 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 21:29:52,859 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2023-12-21 21:29:52,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:29:52,876 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 21:29:52,921 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2023-12-21 21:29:52,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:29:52,940 INFO L206 MainTranslator]: Completed translation [2023-12-21 21:29:52,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52 WrapperNode [2023-12-21 21:29:52,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 21:29:52,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 21:29:52,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 21:29:52,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 21:29:52,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:52,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:52,993 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 525 [2023-12-21 21:29:52,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 21:29:52,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 21:29:52,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 21:29:52,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 21:29:53,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:53,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:53,008 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:53,020 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]. [2023-12-21 21:29:53,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:53,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:53,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:53,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:53,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:53,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:53,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 21:29:53,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 21:29:53,059 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 21:29:53,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 21:29:53,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (1/1) ... [2023-12-21 21:29:53,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:29:53,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 21:29:53,093 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) [2023-12-21 21:29:53,116 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 [2023-12-21 21:29:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 21:29:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 21:29:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 21:29:53,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 21:29:53,230 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 21:29:53,232 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 21:29:53,252 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-21 21:29:53,777 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2023-12-21 21:29:53,777 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2023-12-21 21:29:53,777 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 21:29:53,805 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 21:29:53,805 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 21:29:53,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:29:53 BoogieIcfgContainer [2023-12-21 21:29:53,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 21:29:53,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 21:29:53,808 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 21:29:53,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 21:29:53,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:29:52" (1/3) ... [2023-12-21 21:29:53,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b76a852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:29:53, skipping insertion in model container [2023-12-21 21:29:53,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:29:52" (2/3) ... [2023-12-21 21:29:53,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b76a852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:29:53, skipping insertion in model container [2023-12-21 21:29:53,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:29:53" (3/3) ... [2023-12-21 21:29:53,812 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a.BV.c.cil.c [2023-12-21 21:29:53,827 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 21:29:53,827 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 21:29:53,865 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 21:29:53,870 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;@46cc13c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 21:29:53,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 21:29:53,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.795275590551181) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:53,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-21 21:29:53,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:53,880 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] [2023-12-21 21:29:53,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:53,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:53,884 INFO L85 PathProgramCache]: Analyzing trace with hash -885659394, now seen corresponding path program 1 times [2023-12-21 21:29:53,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:53,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825105088] [2023-12-21 21:29:53,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:53,893 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 [2023-12-21 21:29:53,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:53,896 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) [2023-12-21 21:29:53,902 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 [2023-12-21 21:29:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:53,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 21:29:53,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:29:54,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:54,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:54,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825105088] [2023-12-21 21:29:54,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825105088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:54,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:54,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:29:54,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771722750] [2023-12-21 21:29:54,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:54,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:54,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:54,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:54,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:54,103 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.795275590551181) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 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 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:54,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:54,294 INFO L93 Difference]: Finished difference Result 262 states and 463 transitions. [2023-12-21 21:29:54,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:54,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2023-12-21 21:29:54,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:54,306 INFO L225 Difference]: With dead ends: 262 [2023-12-21 21:29:54,306 INFO L226 Difference]: Without dead ends: 124 [2023-12-21 21:29:54,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:54,313 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 16 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:54,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 302 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:54,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-21 21:29:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 121. [2023-12-21 21:29:54,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.5083333333333333) internal successors, (181), 120 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:54,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 181 transitions. [2023-12-21 21:29:54,353 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 181 transitions. Word has length 42 [2023-12-21 21:29:54,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:54,354 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 181 transitions. [2023-12-21 21:29:54,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:54,354 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 181 transitions. [2023-12-21 21:29:54,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 21:29:54,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:54,357 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] [2023-12-21 21:29:54,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-21 21:29:54,558 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 [2023-12-21 21:29:54,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:54,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:54,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1758820122, now seen corresponding path program 1 times [2023-12-21 21:29:54,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:54,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139666976] [2023-12-21 21:29:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:54,560 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 [2023-12-21 21:29:54,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:54,562 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) [2023-12-21 21:29:54,587 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 [2023-12-21 21:29:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:54,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:54,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:54,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:29:54,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:54,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:54,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139666976] [2023-12-21 21:29:54,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139666976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:54,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:54,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:54,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59915734] [2023-12-21 21:29:54,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:54,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:54,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:54,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:54,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:54,690 INFO L87 Difference]: Start difference. First operand 121 states and 181 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) [2023-12-21 21:29:54,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:54,721 INFO L93 Difference]: Finished difference Result 323 states and 494 transitions. [2023-12-21 21:29:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:54,721 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 [2023-12-21 21:29:54,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:54,723 INFO L225 Difference]: With dead ends: 323 [2023-12-21 21:29:54,723 INFO L226 Difference]: Without dead ends: 219 [2023-12-21 21:29:54,724 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 [2023-12-21 21:29:54,725 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 110 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:54,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 333 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-21 21:29:54,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-12-21 21:29:54,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.5137614678899083) internal successors, (330), 218 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:54,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 330 transitions. [2023-12-21 21:29:54,740 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 330 transitions. Word has length 57 [2023-12-21 21:29:54,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:54,740 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 330 transitions. [2023-12-21 21:29:54,740 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) [2023-12-21 21:29:54,740 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 330 transitions. [2023-12-21 21:29:54,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 21:29:54,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:54,743 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] [2023-12-21 21:29:54,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:54,944 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 [2023-12-21 21:29:54,945 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:54,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:54,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1335173400, now seen corresponding path program 1 times [2023-12-21 21:29:54,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:54,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983099219] [2023-12-21 21:29:54,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:54,947 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 [2023-12-21 21:29:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:54,948 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) [2023-12-21 21:29:54,948 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 [2023-12-21 21:29:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:55,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:55,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:55,050 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:29:55,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:55,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:55,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983099219] [2023-12-21 21:29:55,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983099219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:55,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:55,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:29:55,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774277304] [2023-12-21 21:29:55,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:55,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:55,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:55,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:55,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:55,057 INFO L87 Difference]: Start difference. First operand 219 states and 330 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 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) [2023-12-21 21:29:55,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:55,089 INFO L93 Difference]: Finished difference Result 423 states and 642 transitions. [2023-12-21 21:29:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:55,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 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 [2023-12-21 21:29:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:55,093 INFO L225 Difference]: With dead ends: 423 [2023-12-21 21:29:55,093 INFO L226 Difference]: Without dead ends: 221 [2023-12-21 21:29:55,097 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 [2023-12-21 21:29:55,099 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 6 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:55,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 315 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:55,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-21 21:29:55,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2023-12-21 21:29:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.509090909090909) internal successors, (332), 220 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:55,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 332 transitions. [2023-12-21 21:29:55,120 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 332 transitions. Word has length 57 [2023-12-21 21:29:55,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:55,120 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 332 transitions. [2023-12-21 21:29:55,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 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) [2023-12-21 21:29:55,121 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 332 transitions. [2023-12-21 21:29:55,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 21:29:55,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:55,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:55,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:55,325 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 [2023-12-21 21:29:55,325 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:55,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:55,326 INFO L85 PathProgramCache]: Analyzing trace with hash 808134731, now seen corresponding path program 1 times [2023-12-21 21:29:55,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:55,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596116842] [2023-12-21 21:29:55,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:55,328 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 [2023-12-21 21:29:55,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:55,330 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) [2023-12-21 21:29:55,334 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 [2023-12-21 21:29:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:55,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:55,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:55,464 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 21:29:55,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:55,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:55,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596116842] [2023-12-21 21:29:55,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596116842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:55,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:55,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:55,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014784945] [2023-12-21 21:29:55,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:55,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:55,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:55,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:55,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:55,470 INFO L87 Difference]: Start difference. First operand 221 states and 332 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:55,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:55,636 INFO L93 Difference]: Finished difference Result 512 states and 793 transitions. [2023-12-21 21:29:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:55,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 [2023-12-21 21:29:55,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:55,640 INFO L225 Difference]: With dead ends: 512 [2023-12-21 21:29:55,640 INFO L226 Difference]: Without dead ends: 310 [2023-12-21 21:29:55,644 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 [2023-12-21 21:29:55,647 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 14 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:55,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 263 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:29:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-12-21 21:29:55,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 302. [2023-12-21 21:29:55,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.4053156146179402) internal successors, (423), 301 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 423 transitions. [2023-12-21 21:29:55,665 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 423 transitions. Word has length 77 [2023-12-21 21:29:55,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:55,665 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 423 transitions. [2023-12-21 21:29:55,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:55,665 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 423 transitions. [2023-12-21 21:29:55,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 21:29:55,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:55,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:55,680 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 [2023-12-21 21:29:55,875 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 [2023-12-21 21:29:55,875 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:55,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:55,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1231781453, now seen corresponding path program 1 times [2023-12-21 21:29:55,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:55,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82716510] [2023-12-21 21:29:55,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:55,877 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 [2023-12-21 21:29:55,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:55,878 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) [2023-12-21 21:29:55,880 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 [2023-12-21 21:29:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:55,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:55,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 21:29:55,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:55,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:55,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82716510] [2023-12-21 21:29:55,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82716510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:55,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:55,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:55,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143437767] [2023-12-21 21:29:55,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:55,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:55,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:55,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:55,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:55,974 INFO L87 Difference]: Start difference. First operand 302 states and 423 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:56,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:56,103 INFO L93 Difference]: Finished difference Result 613 states and 867 transitions. [2023-12-21 21:29:56,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:56,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 [2023-12-21 21:29:56,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:56,105 INFO L225 Difference]: With dead ends: 613 [2023-12-21 21:29:56,105 INFO L226 Difference]: Without dead ends: 330 [2023-12-21 21:29:56,106 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 [2023-12-21 21:29:56,107 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 12 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:56,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 264 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:56,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-12-21 21:29:56,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 324. [2023-12-21 21:29:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.3931888544891642) internal successors, (450), 323 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:56,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 450 transitions. [2023-12-21 21:29:56,121 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 450 transitions. Word has length 77 [2023-12-21 21:29:56,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:56,121 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 450 transitions. [2023-12-21 21:29:56,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:56,127 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 450 transitions. [2023-12-21 21:29:56,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 21:29:56,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:56,130 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:56,133 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 [2023-12-21 21:29:56,332 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 [2023-12-21 21:29:56,333 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:56,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:56,333 INFO L85 PathProgramCache]: Analyzing trace with hash -382395928, now seen corresponding path program 1 times [2023-12-21 21:29:56,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:56,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414239700] [2023-12-21 21:29:56,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:56,334 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 [2023-12-21 21:29:56,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:56,336 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) [2023-12-21 21:29:56,358 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 [2023-12-21 21:29:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:56,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:56,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:56,439 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 21:29:56,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:56,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:56,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414239700] [2023-12-21 21:29:56,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414239700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:56,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:56,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:56,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712551272] [2023-12-21 21:29:56,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:56,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:56,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:56,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:56,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:56,442 INFO L87 Difference]: Start difference. First operand 324 states and 450 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) [2023-12-21 21:29:56,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:56,555 INFO L93 Difference]: Finished difference Result 701 states and 997 transitions. [2023-12-21 21:29:56,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:56,555 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 96 [2023-12-21 21:29:56,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:56,559 INFO L225 Difference]: With dead ends: 701 [2023-12-21 21:29:56,559 INFO L226 Difference]: Without dead ends: 396 [2023-12-21 21:29:56,559 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 [2023-12-21 21:29:56,560 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:56,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 263 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:56,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-12-21 21:29:56,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 372. [2023-12-21 21:29:56,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 371 states have (on average 1.3692722371967656) internal successors, (508), 371 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:56,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 508 transitions. [2023-12-21 21:29:56,569 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 508 transitions. Word has length 96 [2023-12-21 21:29:56,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:56,570 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 508 transitions. [2023-12-21 21:29:56,570 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) [2023-12-21 21:29:56,570 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 508 transitions. [2023-12-21 21:29:56,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 21:29:56,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:56,572 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:56,577 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 [2023-12-21 21:29:56,774 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 [2023-12-21 21:29:56,775 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:56,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:56,775 INFO L85 PathProgramCache]: Analyzing trace with hash -376941569, now seen corresponding path program 1 times [2023-12-21 21:29:56,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:56,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106072429] [2023-12-21 21:29:56,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:56,775 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 [2023-12-21 21:29:56,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:56,776 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) [2023-12-21 21:29:56,777 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 [2023-12-21 21:29:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:56,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:56,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:56,907 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 21:29:56,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:56,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:56,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106072429] [2023-12-21 21:29:56,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106072429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:56,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:56,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:56,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452987733] [2023-12-21 21:29:56,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:56,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:56,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:56,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:56,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:56,910 INFO L87 Difference]: Start difference. First operand 372 states and 508 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:56,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:56,939 INFO L93 Difference]: Finished difference Result 888 states and 1222 transitions. [2023-12-21 21:29:56,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:56,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 116 [2023-12-21 21:29:56,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:56,941 INFO L225 Difference]: With dead ends: 888 [2023-12-21 21:29:56,941 INFO L226 Difference]: Without dead ends: 535 [2023-12-21 21:29:56,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:56,942 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 110 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:56,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 467 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:56,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-12-21 21:29:56,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-12-21 21:29:56,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.3707865168539326) internal successors, (732), 534 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:56,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 732 transitions. [2023-12-21 21:29:56,953 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 732 transitions. Word has length 116 [2023-12-21 21:29:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:56,953 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 732 transitions. [2023-12-21 21:29:56,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 732 transitions. [2023-12-21 21:29:56,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 21:29:56,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:56,955 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:56,963 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 [2023-12-21 21:29:57,157 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 [2023-12-21 21:29:57,158 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:57,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:57,159 INFO L85 PathProgramCache]: Analyzing trace with hash -128795075, now seen corresponding path program 1 times [2023-12-21 21:29:57,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:57,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262654183] [2023-12-21 21:29:57,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:57,159 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 [2023-12-21 21:29:57,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:57,160 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) [2023-12-21 21:29:57,162 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 [2023-12-21 21:29:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:57,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:57,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:57,275 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 21:29:57,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:57,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:57,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262654183] [2023-12-21 21:29:57,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262654183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:57,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:57,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:57,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110311183] [2023-12-21 21:29:57,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:57,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:57,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:57,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:57,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:57,277 INFO L87 Difference]: Start difference. First operand 535 states and 732 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:57,309 INFO L93 Difference]: Finished difference Result 1238 states and 1700 transitions. [2023-12-21 21:29:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:57,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-21 21:29:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:57,312 INFO L225 Difference]: With dead ends: 1238 [2023-12-21 21:29:57,313 INFO L226 Difference]: Without dead ends: 722 [2023-12-21 21:29:57,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:57,314 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 112 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:57,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 465 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:57,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-12-21 21:29:57,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2023-12-21 21:29:57,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.3675450762829404) internal successors, (986), 721 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:57,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 986 transitions. [2023-12-21 21:29:57,328 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 986 transitions. Word has length 116 [2023-12-21 21:29:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:57,328 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 986 transitions. [2023-12-21 21:29:57,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:57,328 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 986 transitions. [2023-12-21 21:29:57,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-21 21:29:57,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:57,331 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:57,335 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 [2023-12-21 21:29:57,535 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 [2023-12-21 21:29:57,536 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:57,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:57,536 INFO L85 PathProgramCache]: Analyzing trace with hash 864017877, now seen corresponding path program 1 times [2023-12-21 21:29:57,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:57,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434618565] [2023-12-21 21:29:57,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:57,537 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 [2023-12-21 21:29:57,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:57,538 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) [2023-12-21 21:29:57,539 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 [2023-12-21 21:29:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:57,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:57,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:57,630 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-21 21:29:57,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:57,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:57,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434618565] [2023-12-21 21:29:57,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434618565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:57,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:57,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:57,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824419605] [2023-12-21 21:29:57,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:57,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:57,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:57,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:57,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:57,632 INFO L87 Difference]: Start difference. First operand 722 states and 986 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:57,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:57,757 INFO L93 Difference]: Finished difference Result 1562 states and 2185 transitions. [2023-12-21 21:29:57,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:57,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 176 [2023-12-21 21:29:57,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:57,761 INFO L225 Difference]: With dead ends: 1562 [2023-12-21 21:29:57,761 INFO L226 Difference]: Without dead ends: 859 [2023-12-21 21:29:57,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:57,764 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 34 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:57,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 262 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:57,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2023-12-21 21:29:57,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 845. [2023-12-21 21:29:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.3317535545023698) internal successors, (1124), 844 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1124 transitions. [2023-12-21 21:29:57,781 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1124 transitions. Word has length 176 [2023-12-21 21:29:57,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:57,782 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1124 transitions. [2023-12-21 21:29:57,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:57,782 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1124 transitions. [2023-12-21 21:29:57,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-21 21:29:57,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:57,785 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-12-21 21:29:57,794 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 [2023-12-21 21:29:57,988 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 [2023-12-21 21:29:57,989 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:57,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:57,989 INFO L85 PathProgramCache]: Analyzing trace with hash -405478866, now seen corresponding path program 1 times [2023-12-21 21:29:57,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:57,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655391719] [2023-12-21 21:29:57,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:57,990 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 [2023-12-21 21:29:57,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:57,992 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) [2023-12-21 21:29:58,000 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 [2023-12-21 21:29:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:58,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:58,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-21 21:29:58,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:58,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:58,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655391719] [2023-12-21 21:29:58,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655391719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:58,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:58,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:58,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194503156] [2023-12-21 21:29:58,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:58,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:58,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:58,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:58,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:58,137 INFO L87 Difference]: Start difference. First operand 845 states and 1124 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:58,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:58,256 INFO L93 Difference]: Finished difference Result 1791 states and 2433 transitions. [2023-12-21 21:29:58,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:58,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 217 [2023-12-21 21:29:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:58,260 INFO L225 Difference]: With dead ends: 1791 [2023-12-21 21:29:58,260 INFO L226 Difference]: Without dead ends: 965 [2023-12-21 21:29:58,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:58,262 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 23 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:58,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 257 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:58,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2023-12-21 21:29:58,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2023-12-21 21:29:58,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.3112033195020747) internal successors, (1264), 964 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:58,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1264 transitions. [2023-12-21 21:29:58,282 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1264 transitions. Word has length 217 [2023-12-21 21:29:58,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:58,283 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1264 transitions. [2023-12-21 21:29:58,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:58,283 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1264 transitions. [2023-12-21 21:29:58,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-21 21:29:58,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:58,287 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-12-21 21:29:58,292 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 [2023-12-21 21:29:58,490 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 [2023-12-21 21:29:58,490 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:58,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:58,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1242759366, now seen corresponding path program 1 times [2023-12-21 21:29:58,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:58,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246694854] [2023-12-21 21:29:58,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:58,491 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 [2023-12-21 21:29:58,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:58,493 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) [2023-12-21 21:29:58,498 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 [2023-12-21 21:29:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:58,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:29:58,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:58,647 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-21 21:29:58,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:29:58,724 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-21 21:29:58,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:58,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246694854] [2023-12-21 21:29:58,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246694854] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:29:58,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:29:58,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 21:29:58,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215120260] [2023-12-21 21:29:58,725 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:29:58,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 21:29:58,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:58,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 21:29:58,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:29:58,726 INFO L87 Difference]: Start difference. First operand 965 states and 1264 transitions. Second operand has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:59,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:59,324 INFO L93 Difference]: Finished difference Result 3929 states and 5386 transitions. [2023-12-21 21:29:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 21:29:59,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 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 244 [2023-12-21 21:29:59,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:59,334 INFO L225 Difference]: With dead ends: 3929 [2023-12-21 21:29:59,334 INFO L226 Difference]: Without dead ends: 2983 [2023-12-21 21:29:59,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-21 21:29:59,336 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 485 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:59,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 837 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 21:29:59,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2023-12-21 21:29:59,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2350. [2023-12-21 21:29:59,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2349 states have (on average 1.3461047254150702) internal successors, (3162), 2349 states have internal predecessors, (3162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:59,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3162 transitions. [2023-12-21 21:29:59,388 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3162 transitions. Word has length 244 [2023-12-21 21:29:59,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:59,388 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3162 transitions. [2023-12-21 21:29:59,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:59,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3162 transitions. [2023-12-21 21:29:59,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-21 21:29:59,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:59,393 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-12-21 21:29:59,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:59,597 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 [2023-12-21 21:29:59,597 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:59,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:59,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1888586939, now seen corresponding path program 1 times [2023-12-21 21:29:59,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:59,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231397540] [2023-12-21 21:29:59,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:59,598 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 [2023-12-21 21:29:59,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:59,600 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) [2023-12-21 21:29:59,624 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 [2023-12-21 21:29:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:59,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:59,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-21 21:29:59,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:59,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:59,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231397540] [2023-12-21 21:29:59,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [231397540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:59,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:59,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:59,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331203564] [2023-12-21 21:29:59,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:59,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:59,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:59,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:59,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:59,746 INFO L87 Difference]: Start difference. First operand 2350 states and 3162 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:59,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:59,813 INFO L93 Difference]: Finished difference Result 5644 states and 7595 transitions. [2023-12-21 21:29:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:59,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 [2023-12-21 21:29:59,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:59,824 INFO L225 Difference]: With dead ends: 5644 [2023-12-21 21:29:59,824 INFO L226 Difference]: Without dead ends: 3472 [2023-12-21 21:29:59,827 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 [2023-12-21 21:29:59,827 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 121 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:59,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 476 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:59,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2023-12-21 21:29:59,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 3286. [2023-12-21 21:29:59,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3285 states have (on average 1.3531202435312024) internal successors, (4445), 3285 states have internal predecessors, (4445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:59,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 4445 transitions. [2023-12-21 21:29:59,900 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 4445 transitions. Word has length 245 [2023-12-21 21:29:59,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:59,900 INFO L495 AbstractCegarLoop]: Abstraction has 3286 states and 4445 transitions. [2023-12-21 21:29:59,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:59,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 4445 transitions. [2023-12-21 21:29:59,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-21 21:29:59,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:59,906 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:59,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-21 21:30:00,109 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 [2023-12-21 21:30:00,109 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:00,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:00,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1459972663, now seen corresponding path program 1 times [2023-12-21 21:30:00,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:00,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [835570648] [2023-12-21 21:30:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:00,110 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 [2023-12-21 21:30:00,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:00,111 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) [2023-12-21 21:30:00,113 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 [2023-12-21 21:30:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:00,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:00,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-21 21:30:00,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:00,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [835570648] [2023-12-21 21:30:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [835570648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:00,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:00,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:00,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255599847] [2023-12-21 21:30:00,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:00,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:00,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:00,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:00,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:00,362 INFO L87 Difference]: Start difference. First operand 3286 states and 4445 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:00,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:00,413 INFO L93 Difference]: Finished difference Result 5004 states and 6726 transitions. [2023-12-21 21:30:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:00,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 250 [2023-12-21 21:30:00,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:00,424 INFO L225 Difference]: With dead ends: 5004 [2023-12-21 21:30:00,424 INFO L226 Difference]: Without dead ends: 3310 [2023-12-21 21:30:00,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:00,428 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 99 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:00,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 476 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:30:00,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2023-12-21 21:30:00,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 3292. [2023-12-21 21:30:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 3291 states have (on average 1.3366757824369493) internal successors, (4399), 3291 states have internal predecessors, (4399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:00,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 4399 transitions. [2023-12-21 21:30:00,503 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 4399 transitions. Word has length 250 [2023-12-21 21:30:00,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:00,503 INFO L495 AbstractCegarLoop]: Abstraction has 3292 states and 4399 transitions. [2023-12-21 21:30:00,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:00,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 4399 transitions. [2023-12-21 21:30:00,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-21 21:30:00,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:00,511 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-21 21:30:00,519 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 [2023-12-21 21:30:00,714 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 [2023-12-21 21:30:00,715 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:00,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:00,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1570629082, now seen corresponding path program 1 times [2023-12-21 21:30:00,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:00,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788317817] [2023-12-21 21:30:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:00,716 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 [2023-12-21 21:30:00,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:00,717 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) [2023-12-21 21:30:00,718 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 [2023-12-21 21:30:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:00,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:00,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 752 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2023-12-21 21:30:00,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:00,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:00,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788317817] [2023-12-21 21:30:00,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788317817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:00,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:00,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:00,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739939583] [2023-12-21 21:30:00,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:00,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:00,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:00,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:00,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:00,836 INFO L87 Difference]: Start difference. First operand 3292 states and 4399 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:01,030 INFO L93 Difference]: Finished difference Result 5692 states and 7731 transitions. [2023-12-21 21:30:01,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:01,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 281 [2023-12-21 21:30:01,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:01,036 INFO L225 Difference]: With dead ends: 5692 [2023-12-21 21:30:01,036 INFO L226 Difference]: Without dead ends: 1735 [2023-12-21 21:30:01,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:01,041 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 30 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:01,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 264 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:30:01,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2023-12-21 21:30:01,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1437. [2023-12-21 21:30:01,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1436 states have (on average 1.3224233983286908) internal successors, (1899), 1436 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1899 transitions. [2023-12-21 21:30:01,070 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1899 transitions. Word has length 281 [2023-12-21 21:30:01,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:01,071 INFO L495 AbstractCegarLoop]: Abstraction has 1437 states and 1899 transitions. [2023-12-21 21:30:01,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1899 transitions. [2023-12-21 21:30:01,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-12-21 21:30:01,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:01,075 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:01,078 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 [2023-12-21 21:30:01,278 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 [2023-12-21 21:30:01,278 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:01,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:01,279 INFO L85 PathProgramCache]: Analyzing trace with hash 989841933, now seen corresponding path program 1 times [2023-12-21 21:30:01,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:01,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217297304] [2023-12-21 21:30:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:01,281 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 [2023-12-21 21:30:01,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:01,282 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) [2023-12-21 21:30:01,310 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 [2023-12-21 21:30:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:01,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:01,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:01,403 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 549 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-12-21 21:30:01,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:01,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:01,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217297304] [2023-12-21 21:30:01,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217297304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:01,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:01,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:01,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192766511] [2023-12-21 21:30:01,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:01,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:01,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:01,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:01,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:01,405 INFO L87 Difference]: Start difference. First operand 1437 states and 1899 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:01,523 INFO L93 Difference]: Finished difference Result 3049 states and 4095 transitions. [2023-12-21 21:30:01,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:01,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 294 [2023-12-21 21:30:01,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:01,528 INFO L225 Difference]: With dead ends: 3049 [2023-12-21 21:30:01,528 INFO L226 Difference]: Without dead ends: 1631 [2023-12-21 21:30:01,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:01,531 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 17 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:01,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 259 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:01,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-21 21:30:01,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1593. [2023-12-21 21:30:01,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.309673366834171) internal successors, (2085), 1592 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2085 transitions. [2023-12-21 21:30:01,567 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2085 transitions. Word has length 294 [2023-12-21 21:30:01,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:01,568 INFO L495 AbstractCegarLoop]: Abstraction has 1593 states and 2085 transitions. [2023-12-21 21:30:01,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:01,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2085 transitions. [2023-12-21 21:30:01,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-21 21:30:01,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:01,573 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 10, 8, 8, 6, 6, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:01,579 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 [2023-12-21 21:30:01,776 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 [2023-12-21 21:30:01,777 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:01,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:01,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1799712819, now seen corresponding path program 1 times [2023-12-21 21:30:01,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:01,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555301588] [2023-12-21 21:30:01,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:01,778 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 [2023-12-21 21:30:01,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:01,778 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) [2023-12-21 21:30:01,780 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 (17)] Waiting until timeout for monitored process [2023-12-21 21:30:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:01,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:01,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 795 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-12-21 21:30:01,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:01,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:01,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555301588] [2023-12-21 21:30:01,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555301588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:01,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:01,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:01,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673164144] [2023-12-21 21:30:01,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:01,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:01,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:01,908 INFO L87 Difference]: Start difference. First operand 1593 states and 2085 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:02,029 INFO L93 Difference]: Finished difference Result 3274 states and 4325 transitions. [2023-12-21 21:30:02,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:02,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 338 [2023-12-21 21:30:02,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:02,035 INFO L225 Difference]: With dead ends: 3274 [2023-12-21 21:30:02,035 INFO L226 Difference]: Without dead ends: 1700 [2023-12-21 21:30:02,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:02,037 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 10 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:02,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 259 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:02,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2023-12-21 21:30:02,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1469. [2023-12-21 21:30:02,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1468 states have (on average 1.2881471389645776) internal successors, (1891), 1468 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1891 transitions. [2023-12-21 21:30:02,065 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1891 transitions. Word has length 338 [2023-12-21 21:30:02,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:02,066 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 1891 transitions. [2023-12-21 21:30:02,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1891 transitions. [2023-12-21 21:30:02,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-12-21 21:30:02,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:02,072 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 12, 10, 10, 8, 8, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:02,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-21 21:30:02,275 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 [2023-12-21 21:30:02,275 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:02,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:02,276 INFO L85 PathProgramCache]: Analyzing trace with hash 555843657, now seen corresponding path program 1 times [2023-12-21 21:30:02,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:02,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032974264] [2023-12-21 21:30:02,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:02,277 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 [2023-12-21 21:30:02,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:02,278 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) [2023-12-21 21:30:02,296 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 [2023-12-21 21:30:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:02,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:02,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1910 backedges. 903 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2023-12-21 21:30:02,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:02,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:02,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032974264] [2023-12-21 21:30:02,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032974264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:02,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:02,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:02,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629892299] [2023-12-21 21:30:02,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:02,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:02,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:02,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:02,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:02,487 INFO L87 Difference]: Start difference. First operand 1469 states and 1891 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:02,524 INFO L93 Difference]: Finished difference Result 4229 states and 5409 transitions. [2023-12-21 21:30:02,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:02,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 400 [2023-12-21 21:30:02,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:02,532 INFO L225 Difference]: With dead ends: 4229 [2023-12-21 21:30:02,533 INFO L226 Difference]: Without dead ends: 2845 [2023-12-21 21:30:02,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:02,535 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 120 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:02,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 463 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:30:02,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2023-12-21 21:30:02,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2843. [2023-12-21 21:30:02,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2843 states, 2842 states have (on average 1.2790288529204785) internal successors, (3635), 2842 states have internal predecessors, (3635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 3635 transitions. [2023-12-21 21:30:02,592 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 3635 transitions. Word has length 400 [2023-12-21 21:30:02,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:02,593 INFO L495 AbstractCegarLoop]: Abstraction has 2843 states and 3635 transitions. [2023-12-21 21:30:02,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:02,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 3635 transitions. [2023-12-21 21:30:02,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2023-12-21 21:30:02,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:02,602 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 12, 10, 10, 8, 8, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:02,609 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 (18)] Forceful destruction successful, exit code 0 [2023-12-21 21:30:02,806 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 [2023-12-21 21:30:02,806 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:02,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:02,807 INFO L85 PathProgramCache]: Analyzing trace with hash -514298835, now seen corresponding path program 1 times [2023-12-21 21:30:02,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:02,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304821827] [2023-12-21 21:30:02,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:02,807 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 [2023-12-21 21:30:02,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:02,809 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) [2023-12-21 21:30:02,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-21 21:30:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:02,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:30:02,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 1174 proven. 25 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2023-12-21 21:30:02,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:03,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 1174 proven. 25 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2023-12-21 21:30:03,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:03,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304821827] [2023-12-21 21:30:03,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304821827] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:03,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:03,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2023-12-21 21:30:03,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134392603] [2023-12-21 21:30:03,071 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:03,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:30:03,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:03,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:30:03,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:30:03,072 INFO L87 Difference]: Start difference. First operand 2843 states and 3635 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:03,323 INFO L93 Difference]: Finished difference Result 8667 states and 11146 transitions. [2023-12-21 21:30:03,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:30:03,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 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 402 [2023-12-21 21:30:03,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:03,364 INFO L225 Difference]: With dead ends: 8667 [2023-12-21 21:30:03,364 INFO L226 Difference]: Without dead ends: 5909 [2023-12-21 21:30:03,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 801 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:30:03,367 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 144 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:03,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 633 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:30:03,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5909 states. [2023-12-21 21:30:03,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5909 to 3859. [2023-12-21 21:30:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 3858 states have (on average 1.3035251425609125) internal successors, (5029), 3858 states have internal predecessors, (5029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5029 transitions. [2023-12-21 21:30:03,495 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5029 transitions. Word has length 402 [2023-12-21 21:30:03,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:03,495 INFO L495 AbstractCegarLoop]: Abstraction has 3859 states and 5029 transitions. [2023-12-21 21:30:03,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5029 transitions. [2023-12-21 21:30:03,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2023-12-21 21:30:03,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:03,505 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:03,512 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 [2023-12-21 21:30:03,709 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 [2023-12-21 21:30:03,709 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:03,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:03,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1660270935, now seen corresponding path program 1 times [2023-12-21 21:30:03,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:03,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117201821] [2023-12-21 21:30:03,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:03,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:30:03,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:03,711 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) [2023-12-21 21:30:03,713 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 [2023-12-21 21:30:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:03,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:03,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:03,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 1405 proven. 0 refuted. 0 times theorem prover too weak. 1151 trivial. 0 not checked. [2023-12-21 21:30:03,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:03,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:03,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117201821] [2023-12-21 21:30:03,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117201821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:03,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:03,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:03,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008818230] [2023-12-21 21:30:03,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:03,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:03,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:03,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:03,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:03,858 INFO L87 Difference]: Start difference. First operand 3859 states and 5029 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:03,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:03,994 INFO L93 Difference]: Finished difference Result 8073 states and 10583 transitions. [2023-12-21 21:30:03,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:03,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 460 [2023-12-21 21:30:03,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:04,007 INFO L225 Difference]: With dead ends: 8073 [2023-12-21 21:30:04,007 INFO L226 Difference]: Without dead ends: 4233 [2023-12-21 21:30:04,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:04,011 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 12 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:04,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 263 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4233 states. [2023-12-21 21:30:04,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4233 to 4182. [2023-12-21 21:30:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4182 states, 4181 states have (on average 1.300406601291557) internal successors, (5437), 4181 states have internal predecessors, (5437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4182 states to 4182 states and 5437 transitions. [2023-12-21 21:30:04,084 INFO L78 Accepts]: Start accepts. Automaton has 4182 states and 5437 transitions. Word has length 460 [2023-12-21 21:30:04,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:04,084 INFO L495 AbstractCegarLoop]: Abstraction has 4182 states and 5437 transitions. [2023-12-21 21:30:04,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,084 INFO L276 IsEmpty]: Start isEmpty. Operand 4182 states and 5437 transitions. [2023-12-21 21:30:04,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2023-12-21 21:30:04,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:04,093 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:04,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-21 21:30:04,303 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 [2023-12-21 21:30:04,303 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:04,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:04,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1437711757, now seen corresponding path program 1 times [2023-12-21 21:30:04,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:04,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653872901] [2023-12-21 21:30:04,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:04,304 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 [2023-12-21 21:30:04,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:04,306 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) [2023-12-21 21:30:04,337 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 [2023-12-21 21:30:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:04,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:04,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:04,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 1485 proven. 0 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2023-12-21 21:30:04,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:04,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:04,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653872901] [2023-12-21 21:30:04,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653872901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:04,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:04,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:04,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103964091] [2023-12-21 21:30:04,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:04,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:04,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:04,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:04,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:04,498 INFO L87 Difference]: Start difference. First operand 4182 states and 5437 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:04,649 INFO L93 Difference]: Finished difference Result 8940 states and 11837 transitions. [2023-12-21 21:30:04,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:04,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 462 [2023-12-21 21:30:04,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:04,658 INFO L225 Difference]: With dead ends: 8940 [2023-12-21 21:30:04,658 INFO L226 Difference]: Without dead ends: 4777 [2023-12-21 21:30:04,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:04,663 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 10 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:04,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 259 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:04,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4777 states. [2023-12-21 21:30:04,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4777 to 4743. [2023-12-21 21:30:04,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 4742 states have (on average 1.2827920708561789) internal successors, (6083), 4742 states have internal predecessors, (6083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 6083 transitions. [2023-12-21 21:30:04,740 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 6083 transitions. Word has length 462 [2023-12-21 21:30:04,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:04,740 INFO L495 AbstractCegarLoop]: Abstraction has 4743 states and 6083 transitions. [2023-12-21 21:30:04,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:04,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 6083 transitions. [2023-12-21 21:30:04,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-12-21 21:30:04,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:04,749 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 16, 15, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:04,759 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 [2023-12-21 21:30:04,953 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 [2023-12-21 21:30:04,953 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:04,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:04,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1036572115, now seen corresponding path program 1 times [2023-12-21 21:30:04,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:04,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224860276] [2023-12-21 21:30:04,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:04,955 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 [2023-12-21 21:30:04,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:04,955 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) [2023-12-21 21:30:04,956 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 [2023-12-21 21:30:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:05,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:30:05,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:06,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3047 backedges. 1651 proven. 193 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2023-12-21 21:30:06,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3047 backedges. 1740 proven. 104 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2023-12-21 21:30:07,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:07,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224860276] [2023-12-21 21:30:07,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224860276] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:07,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:07,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-21 21:30:07,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877751044] [2023-12-21 21:30:07,123 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:07,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 21:30:07,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:07,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 21:30:07,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 21:30:07,125 INFO L87 Difference]: Start difference. First operand 4743 states and 6083 transitions. Second operand has 7 states, 7 states have (on average 31.714285714285715) internal successors, (222), 7 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:08,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:08,501 INFO L93 Difference]: Finished difference Result 14027 states and 18249 transitions. [2023-12-21 21:30:08,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 21:30:08,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.714285714285715) internal successors, (222), 7 states have internal predecessors, (222), 0 states have call successors, (0), 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 494 [2023-12-21 21:30:08,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:08,519 INFO L225 Difference]: With dead ends: 14027 [2023-12-21 21:30:08,519 INFO L226 Difference]: Without dead ends: 9295 [2023-12-21 21:30:08,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 989 GetRequests, 982 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 21:30:08,526 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 351 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:08,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 691 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 21:30:08,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9295 states. [2023-12-21 21:30:08,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9295 to 8288. [2023-12-21 21:30:08,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8288 states, 8287 states have (on average 1.278749849161337) internal successors, (10597), 8287 states have internal predecessors, (10597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:08,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8288 states to 8288 states and 10597 transitions. [2023-12-21 21:30:08,774 INFO L78 Accepts]: Start accepts. Automaton has 8288 states and 10597 transitions. Word has length 494 [2023-12-21 21:30:08,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:08,774 INFO L495 AbstractCegarLoop]: Abstraction has 8288 states and 10597 transitions. [2023-12-21 21:30:08,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.714285714285715) internal successors, (222), 7 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:08,774 INFO L276 IsEmpty]: Start isEmpty. Operand 8288 states and 10597 transitions. [2023-12-21 21:30:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2023-12-21 21:30:08,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:08,789 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 17, 16, 15, 13, 13, 11, 11, 9, 9, 9, 9, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:08,795 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 (22)] Forceful destruction successful, exit code 0 [2023-12-21 21:30:08,993 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 [2023-12-21 21:30:08,993 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:08,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:08,994 INFO L85 PathProgramCache]: Analyzing trace with hash 749348849, now seen corresponding path program 2 times [2023-12-21 21:30:08,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:08,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816641072] [2023-12-21 21:30:08,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 21:30:08,995 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 [2023-12-21 21:30:08,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:08,996 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) [2023-12-21 21:30:09,004 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 [2023-12-21 21:30:09,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 21:30:09,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 21:30:09,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:30:09,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3436 backedges. 1908 proven. 297 refuted. 0 times theorem prover too weak. 1231 trivial. 0 not checked. [2023-12-21 21:30:10,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3436 backedges. 2044 proven. 161 refuted. 0 times theorem prover too weak. 1231 trivial. 0 not checked. [2023-12-21 21:30:11,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:11,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [816641072] [2023-12-21 21:30:11,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [816641072] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:11,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:11,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-21 21:30:11,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379339285] [2023-12-21 21:30:11,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:11,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 21:30:11,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:11,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 21:30:11,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 21:30:11,304 INFO L87 Difference]: Start difference. First operand 8288 states and 10597 transitions. Second operand has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 7 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:12,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:12,699 INFO L93 Difference]: Finished difference Result 25603 states and 32860 transitions. [2023-12-21 21:30:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 21:30:12,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 7 states have internal predecessors, (263), 0 states have call successors, (0), 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 521 [2023-12-21 21:30:12,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:12,729 INFO L225 Difference]: With dead ends: 25603 [2023-12-21 21:30:12,729 INFO L226 Difference]: Without dead ends: 17040 [2023-12-21 21:30:12,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1044 GetRequests, 1036 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 21:30:12,740 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 374 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:12,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 689 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 21:30:12,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17040 states. [2023-12-21 21:30:13,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17040 to 16071. [2023-12-21 21:30:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16071 states, 16070 states have (on average 1.2783447417548226) internal successors, (20543), 16070 states have internal predecessors, (20543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:13,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16071 states to 16071 states and 20543 transitions. [2023-12-21 21:30:13,096 INFO L78 Accepts]: Start accepts. Automaton has 16071 states and 20543 transitions. Word has length 521 [2023-12-21 21:30:13,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:13,097 INFO L495 AbstractCegarLoop]: Abstraction has 16071 states and 20543 transitions. [2023-12-21 21:30:13,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 7 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:13,097 INFO L276 IsEmpty]: Start isEmpty. Operand 16071 states and 20543 transitions. [2023-12-21 21:30:13,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2023-12-21 21:30:13,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:13,121 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 16, 14, 14, 12, 12, 10, 10, 10, 10, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:13,128 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 [2023-12-21 21:30:13,325 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 [2023-12-21 21:30:13,325 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:13,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:13,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1070035859, now seen corresponding path program 1 times [2023-12-21 21:30:13,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:13,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992817523] [2023-12-21 21:30:13,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:13,326 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 [2023-12-21 21:30:13,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:13,327 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) [2023-12-21 21:30:13,337 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 [2023-12-21 21:30:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:13,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:30:13,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3319 backedges. 1913 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2023-12-21 21:30:13,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:30:13,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:13,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992817523] [2023-12-21 21:30:13,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992817523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:30:13,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:30:13,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:30:13,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873995939] [2023-12-21 21:30:13,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:30:13,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:30:13,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:13,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:30:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:13,478 INFO L87 Difference]: Start difference. First operand 16071 states and 20543 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:13,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:13,820 INFO L93 Difference]: Finished difference Result 29263 states and 37624 transitions. [2023-12-21 21:30:13,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:30:13,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 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 522 [2023-12-21 21:30:13,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:13,838 INFO L225 Difference]: With dead ends: 29263 [2023-12-21 21:30:13,838 INFO L226 Difference]: Without dead ends: 13211 [2023-12-21 21:30:13,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:30:13,854 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 10 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:13,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 259 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:13,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13211 states. [2023-12-21 21:30:14,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13211 to 11599. [2023-12-21 21:30:14,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11599 states, 11598 states have (on average 1.241507156406277) internal successors, (14399), 11598 states have internal predecessors, (14399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:14,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11599 states to 11599 states and 14399 transitions. [2023-12-21 21:30:14,125 INFO L78 Accepts]: Start accepts. Automaton has 11599 states and 14399 transitions. Word has length 522 [2023-12-21 21:30:14,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:14,125 INFO L495 AbstractCegarLoop]: Abstraction has 11599 states and 14399 transitions. [2023-12-21 21:30:14,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:14,125 INFO L276 IsEmpty]: Start isEmpty. Operand 11599 states and 14399 transitions. [2023-12-21 21:30:14,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2023-12-21 21:30:14,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:14,146 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 19, 19, 17, 17, 15, 13, 13, 11, 11, 9, 9, 9, 9, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:14,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-21 21:30:14,349 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 [2023-12-21 21:30:14,349 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:14,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:14,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1586945953, now seen corresponding path program 1 times [2023-12-21 21:30:14,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:14,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748018084] [2023-12-21 21:30:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:14,351 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 [2023-12-21 21:30:14,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:14,352 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) [2023-12-21 21:30:14,377 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 [2023-12-21 21:30:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:14,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:30:14,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3630 backedges. 923 proven. 11 refuted. 0 times theorem prover too weak. 2696 trivial. 0 not checked. [2023-12-21 21:30:14,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:14,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3630 backedges. 923 proven. 11 refuted. 0 times theorem prover too weak. 2696 trivial. 0 not checked. [2023-12-21 21:30:14,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:14,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748018084] [2023-12-21 21:30:14,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748018084] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:14,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:14,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2023-12-21 21:30:14,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843238241] [2023-12-21 21:30:14,587 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:14,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:30:14,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:14,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:30:14,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:30:14,589 INFO L87 Difference]: Start difference. First operand 11599 states and 14399 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:14,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:14,880 INFO L93 Difference]: Finished difference Result 24013 states and 29813 transitions. [2023-12-21 21:30:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:30:14,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 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 533 [2023-12-21 21:30:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:14,896 INFO L225 Difference]: With dead ends: 24013 [2023-12-21 21:30:14,896 INFO L226 Difference]: Without dead ends: 11559 [2023-12-21 21:30:14,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1066 GetRequests, 1063 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:30:14,905 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 22 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:14,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 469 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:30:14,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11559 states. [2023-12-21 21:30:15,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11559 to 11559. [2023-12-21 21:30:15,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11559 states, 11558 states have (on average 1.2372382765184289) internal successors, (14300), 11558 states have internal predecessors, (14300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:15,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11559 states to 11559 states and 14300 transitions. [2023-12-21 21:30:15,126 INFO L78 Accepts]: Start accepts. Automaton has 11559 states and 14300 transitions. Word has length 533 [2023-12-21 21:30:15,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:15,126 INFO L495 AbstractCegarLoop]: Abstraction has 11559 states and 14300 transitions. [2023-12-21 21:30:15,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 11559 states and 14300 transitions. [2023-12-21 21:30:15,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2023-12-21 21:30:15,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:30:15,140 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 18, 18, 16, 14, 14, 12, 12, 10, 10, 10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 21:30:15,143 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 [2023-12-21 21:30:15,343 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 [2023-12-21 21:30:15,344 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:30:15,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:30:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1701510475, now seen corresponding path program 1 times [2023-12-21 21:30:15,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:30:15,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037162546] [2023-12-21 21:30:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:30:15,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:30:15,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:30:15,346 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) [2023-12-21 21:30:15,350 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 [2023-12-21 21:30:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:30:15,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:30:15,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:30:15,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 1267 proven. 16 refuted. 0 times theorem prover too weak. 2618 trivial. 0 not checked. [2023-12-21 21:30:15,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:30:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 1267 proven. 16 refuted. 0 times theorem prover too weak. 2618 trivial. 0 not checked. [2023-12-21 21:30:15,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:30:15,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037162546] [2023-12-21 21:30:15,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037162546] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:30:15,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:30:15,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 21:30:15,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217050819] [2023-12-21 21:30:15,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:30:15,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 21:30:15,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:30:15,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 21:30:15,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:30:15,600 INFO L87 Difference]: Start difference. First operand 11559 states and 14300 transitions. Second operand has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:16,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:30:16,051 INFO L93 Difference]: Finished difference Result 16371 states and 20187 transitions. [2023-12-21 21:30:16,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 21:30:16,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 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 563 [2023-12-21 21:30:16,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:30:16,052 INFO L225 Difference]: With dead ends: 16371 [2023-12-21 21:30:16,052 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 21:30:16,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1130 GetRequests, 1123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-21 21:30:16,060 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 284 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 21:30:16,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 637 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 21:30:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 21:30:16,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 21:30:16,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:16,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 21:30:16,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 563 [2023-12-21 21:30:16,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:30:16,062 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 21:30:16,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:30:16,062 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 21:30:16,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 21:30:16,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 21:30:16,068 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 [2023-12-21 21:30:16,267 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 [2023-12-21 21:30:16,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 21:30:23,827 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 272) no Hoare annotation was computed. [2023-12-21 21:30:23,828 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 608) no Hoare annotation was computed. [2023-12-21 21:30:23,828 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 619) no Hoare annotation was computed. [2023-12-21 21:30:23,828 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 630) no Hoare annotation was computed. [2023-12-21 21:30:23,828 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8593#1(lines 186 613) no Hoare annotation was computed. [2023-12-21 21:30:23,828 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 398) no Hoare annotation was computed. [2023-12-21 21:30:23,828 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 338) no Hoare annotation was computed. [2023-12-21 21:30:23,828 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8529#1(lines 159 622) no Hoare annotation was computed. [2023-12-21 21:30:23,828 INFO L899 garLoopResultBuilder]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2023-12-21 21:30:23,829 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 538) no Hoare annotation was computed. [2023-12-21 21:30:23,829 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8497#1(lines 147 626) no Hoare annotation was computed. [2023-12-21 21:30:23,830 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 571) no Hoare annotation was computed. [2023-12-21 21:30:23,830 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 307) no Hoare annotation was computed. [2023-12-21 21:30:23,830 INFO L899 garLoopResultBuilder]: For program point L303-2(lines 221 599) no Hoare annotation was computed. [2023-12-21 21:30:23,830 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 607) no Hoare annotation was computed. [2023-12-21 21:30:23,830 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 618) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L138(lines 138 629) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 397) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L370-1(lines 370 397) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 394) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L669(lines 76 686) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 606) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 617) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 628) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 437) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 258) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L241-2(lines 221 599) no Hoare annotation was computed. [2023-12-21 21:30:23,831 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 666) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L407(lines 407 413) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L374(lines 374 393) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 663) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 577) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 544) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 511) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L573-2(lines 573 577) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L540-2(lines 221 599) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 379) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L375-2(lines 374 391) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L210(lines 210 605) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 616) no Hoare annotation was computed. [2023-12-21 21:30:23,832 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 627) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L895 garLoopResultBuilder]: At program point L111-2(lines 111 668) the Hoare annotation is: (let ((.cse26 (bvadd (bvmul (_ bv2 32) |ULTIMATE.start_ssl3_accept_~ag_X~0#1|) (bvmul (_ bv2 32) |ULTIMATE.start_ssl3_accept_~ag_Y~0#1|))) (.cse1 (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32)))) (let ((.cse10 (= (_ bv8512 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse19 (= (_ bv8592 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse23 (= (_ bv8544 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse12 (= (_ bv8560 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse2 (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse17 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8482 32))) (.cse9 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv1 32))) (.cse27 (= (_ bv8482 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse24 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| (_ bv8466 32))) (.cse18 (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8496 32)))) (.cse25 (= (_ bv8608 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse20 (= (_ bv8528 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse5 (not .cse1)) (.cse13 (= (_ bv8656 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse11 (= .cse26 (_ bv8496 32))) (.cse22 (= (_ bv8576 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse15 (= (_ bv8672 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse4 (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8497 32)))) (.cse7 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8640 32))) (.cse14 (= (_ bv3 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse16 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8576 32))) (.cse6 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))) (.cse21 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv3 32))) (.cse8 (= (_ bv8448 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse3 (= (_ bv8448 32) .cse26))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse2) (and .cse0 .cse10 .cse1 .cse3) (and .cse0 .cse11 .cse1 .cse12) (and .cse9 .cse1 .cse13) (and .cse0 .cse11 .cse10 .cse1) (and .cse0 .cse13 .cse3 .cse4) (and .cse0 .cse1 .cse14) (and .cse9 .cse15) (and .cse0 .cse11 .cse16 .cse1 .cse8) (and .cse17 .cse1 .cse8) (and .cse5 .cse9 .cse7 .cse8) (and .cse0 .cse18 .cse19 .cse1 .cse3 .cse4) (and .cse9 .cse19) (and .cse9 .cse20) (and .cse9 .cse21 .cse8) (and .cse0 .cse16 .cse1 .cse22 .cse3) (and .cse0 .cse1 .cse23 .cse3) (and .cse9 .cse24) (and .cse9 .cse12) (and .cse0 .cse11 .cse13 .cse4) (and .cse0 .cse11 .cse1 .cse20) (and .cse0 .cse11 .cse19 .cse16 .cse1) (and .cse17 .cse9 .cse8) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| (_ bv8464 32)) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv0 32))) (and .cse18 .cse1 .cse14) (and .cse9 .cse25) (and .cse0 .cse11 .cse1 .cse23) (and .cse9 .cse23) (and .cse0 .cse11 .cse18 (= (_ bv8496 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse1 .cse4) (and .cse0 .cse11 .cse1 .cse2 .cse4) (and .cse0 .cse1 .cse12 .cse3) (and .cse9 .cse14) (and .cse5 .cse6 .cse7 .cse2) (and .cse9 .cse3) (and .cse11 .cse6 .cse21 .cse1 .cse8) (and .cse9 .cse16 .cse8) (and .cse11 .cse6 .cse1 .cse15 .cse4) (and .cse9 (= .cse26 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse0 .cse16 .cse1 .cse24 .cse3) (and .cse9 .cse16 .cse22) (and .cse17 .cse27 .cse1) (and .cse17 .cse9 .cse27) (and .cse0 .cse11 .cse25 .cse16 .cse1) (and .cse0 .cse11 .cse18 .cse1 .cse24 .cse4) (and .cse0 .cse18 .cse25 .cse1 .cse3 .cse4) (and .cse5 .cse6 .cse15) (and .cse0 .cse1 .cse20 .cse3) (and .cse5 .cse0 .cse13) (and .cse0 .cse11 .cse16 .cse1 .cse22) (and .cse6 .cse1 .cse15 .cse3 .cse4) (and .cse6 .cse7 .cse14) (and .cse0 .cse16 .cse1 .cse8 .cse3) (and .cse6 .cse21 .cse1 .cse8 .cse3)))) [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 677) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 649) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point L673-2(lines 673 677) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point L640-2(lines 639 661) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 479) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point L343-1(lines 343 352) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8481#1(lines 129 632) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 646) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 604) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 615) no Hoare annotation was computed. [2023-12-21 21:30:23,833 INFO L899 garLoopResultBuilder]: For program point L147(lines 147 626) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L114(lines 114 637) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 351) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 491) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L447(lines 447 451) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L381(lines 364 399) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 254) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 603) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 614) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8657#1(lines 204 607) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 625) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 636) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 93) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 613) no Hoare annotation was computed. [2023-12-21 21:30:23,834 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 624) no Hoare annotation was computed. [2023-12-21 21:30:23,835 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 635) no Hoare annotation was computed. [2023-12-21 21:30:23,835 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 593) no Hoare annotation was computed. [2023-12-21 21:30:23,835 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2023-12-21 21:30:23,835 INFO L899 garLoopResultBuilder]: For program point L484(lines 484 488) no Hoare annotation was computed. [2023-12-21 21:30:23,835 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 290) no Hoare annotation was computed. [2023-12-21 21:30:23,835 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 92) no Hoare annotation was computed. [2023-12-21 21:30:23,835 INFO L899 garLoopResultBuilder]: For program point L88-2(lines 85 93) no Hoare annotation was computed. [2023-12-21 21:30:23,835 INFO L899 garLoopResultBuilder]: For program point L518(lines 518 522) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 328) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L684(lines 76 686) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L651(lines 651 657) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point $Ultimate##176(lines 457 469) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 557) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8577#1(lines 180 615) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 612) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 623) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 634) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8641#1(lines 198 609) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 221 599) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point L224(lines 117 636) no Hoare annotation was computed. [2023-12-21 21:30:23,836 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_ERROR#1(lines 76 686) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 611) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L159(lines 159 622) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L126(lines 126 633) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L523-2(lines 523 527) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 457 469) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point $Ultimate##130(lines 343 352) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8673#1(lines 210 605) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L425(lines 416 436) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 363) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L359-2(lines 221 599) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 103) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L95-1(lines 76 686) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8609#1(lines 192 611) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point $Ultimate##158(lines 405 442) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 610) no Hoare annotation was computed. [2023-12-21 21:30:23,837 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 621) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 632) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 100) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8466#1(lines 138 629) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 465) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point $Ultimate##166(lines 416 436) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 233) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L229-2(lines 221 599) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L428(lines 428 432) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point $Ultimate##219(lines 638 666) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 680) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 609) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 620) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 631) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8561#1(lines 171 618) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 566) no Hoare annotation was computed. [2023-12-21 21:30:23,838 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 500) no Hoare annotation was computed. [2023-12-21 21:30:23,839 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 280) no Hoare annotation was computed. [2023-12-21 21:30:23,841 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:30:23,843 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 21:30:23,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 09:30:23 BoogieIcfgContainer [2023-12-21 21:30:23,875 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 21:30:23,875 INFO L158 Benchmark]: Toolchain (without parser) took 31252.02ms. Allocated memory was 288.4MB in the beginning and 828.4MB in the end (delta: 540.0MB). Free memory was 234.9MB in the beginning and 325.9MB in the end (delta: -91.0MB). Peak memory consumption was 563.7MB. Max. memory is 8.0GB. [2023-12-21 21:30:23,875 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 185.6MB. Free memory was 133.6MB in the beginning and 133.4MB in the end (delta: 122.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 21:30:23,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.56ms. Allocated memory is still 288.4MB. Free memory was 234.5MB in the beginning and 217.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-21 21:30:23,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.22ms. Allocated memory is still 288.4MB. Free memory was 217.6MB in the beginning and 215.0MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 21:30:23,876 INFO L158 Benchmark]: Boogie Preprocessor took 63.79ms. Allocated memory is still 288.4MB. Free memory was 215.0MB in the beginning and 211.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 21:30:23,876 INFO L158 Benchmark]: RCFGBuilder took 746.93ms. Allocated memory is still 288.4MB. Free memory was 211.8MB in the beginning and 243.6MB in the end (delta: -31.8MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-12-21 21:30:23,876 INFO L158 Benchmark]: TraceAbstraction took 30067.20ms. Allocated memory was 288.4MB in the beginning and 828.4MB in the end (delta: 540.0MB). Free memory was 242.6MB in the beginning and 325.9MB in the end (delta: -83.3MB). Peak memory consumption was 571.5MB. Max. memory is 8.0GB. [2023-12-21 21:30:23,877 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 185.6MB. Free memory was 133.6MB in the beginning and 133.4MB in the end (delta: 122.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 316.56ms. Allocated memory is still 288.4MB. Free memory was 234.5MB in the beginning and 217.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.22ms. Allocated memory is still 288.4MB. Free memory was 217.6MB in the beginning and 215.0MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.79ms. Allocated memory is still 288.4MB. Free memory was 215.0MB in the beginning and 211.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 746.93ms. Allocated memory is still 288.4MB. Free memory was 211.8MB in the beginning and 243.6MB in the end (delta: -31.8MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * TraceAbstraction took 30067.20ms. Allocated memory was 288.4MB in the beginning and 828.4MB in the end (delta: 540.0MB). Free memory was 242.6MB in the beginning and 325.9MB in the end (delta: -83.3MB). Peak memory consumption was 571.5MB. 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 - PositiveResult [Line: 680]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.0s, OverallIterations: 25, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2554 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2554 mSDsluCounter, 10125 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4489 mSDsCounter, 495 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4096 IncrementalHoareTripleChecker+Invalid, 4591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 495 mSolverCounterUnsat, 5636 mSDtfsCounter, 4096 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9791 GetRequests, 9736 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16071occurred in iteration=22, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 25 MinimizatonAttempts, 7184 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 212 NumberOfFragments, 862 HoareAnnotationTreeSize, 1 FormulaSimplifications, 10183 FormulaSimplificationTreeSizeReduction, 3.1s HoareSimplificationTime, 1 FormulaSimplificationsInter, 8313 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 7040 NumberOfCodeBlocks, 7040 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 9766 ConstructedInterpolants, 40 QuantifiedInterpolants, 18794 SizeOfPredicates, 15 NumberOfNonLiveVariables, 8067 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 31 InterpolantComputations, 19 PerfectInterpolantSequences, 47696/48585 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((blastFlag == 2) && (s__hit == 0)) && (8640 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296))) && !((s__s3__tmp__next_state___0 == 8497))) || (((!((s__hit == 0)) && (blastFlag == 3)) && (s__s3__tmp__next_state___0 == 8640)) && (8448 == s__state))) || ((blastFlag == 1) && (8640 == s__state))) || ((((blastFlag == 2) && (8512 == s__state)) && (s__hit == 0)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__hit == 0)) && (8560 == s__state))) || (((blastFlag == 1) && (s__hit == 0)) && (8656 == s__state))) || ((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (8512 == s__state)) && (s__hit == 0))) || ((((blastFlag == 2) && (8656 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296))) && !((s__s3__tmp__next_state___0 == 8497)))) || (((blastFlag == 2) && (s__hit == 0)) && (3 == s__state))) || ((blastFlag == 1) && (8672 == s__state))) || (((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0)) && (8448 == s__state))) || (((s__s3__tmp__next_state___0 == 8482) && (s__hit == 0)) && (8448 == s__state))) || (((!((s__hit == 0)) && (blastFlag == 1)) && (s__s3__tmp__next_state___0 == 8640)) && (8448 == s__state))) || ((((((blastFlag == 2) && !((s__s3__tmp__next_state___0 == 8496))) && (8592 == s__state)) && (s__hit == 0)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296))) && !((s__s3__tmp__next_state___0 == 8497)))) || ((blastFlag == 1) && (8592 == s__state))) || ((blastFlag == 1) && (8528 == s__state))) || (((blastFlag == 1) && (s__s3__tmp__next_state___0 == 3)) && (8448 == s__state))) || (((((blastFlag == 2) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0)) && (8576 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((((blastFlag == 2) && (s__hit == 0)) && (8544 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((blastFlag == 1) && (s__state == 8466))) || ((blastFlag == 1) && (8560 == s__state))) || ((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (8656 == s__state)) && !((s__s3__tmp__next_state___0 == 8497)))) || ((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__hit == 0)) && (8528 == s__state))) || (((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (8592 == s__state)) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0))) || (((s__s3__tmp__next_state___0 == 8482) && (blastFlag == 1)) && (8448 == s__state))) || ((s__state == 8464) && (blastFlag == 0))) || ((!((s__s3__tmp__next_state___0 == 8496)) && (s__hit == 0)) && (3 == s__state))) || ((blastFlag == 1) && (8608 == s__state))) || ((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__hit == 0)) && (8544 == s__state))) || ((blastFlag == 1) && (8544 == s__state))) || ((((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && !((s__s3__tmp__next_state___0 == 8496))) && (8496 == s__state)) && (s__hit == 0)) && !((s__s3__tmp__next_state___0 == 8497)))) || (((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__hit == 0)) && (8640 == s__state)) && !((s__s3__tmp__next_state___0 == 8497)))) || ((((blastFlag == 2) && (s__hit == 0)) && (8560 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((blastFlag == 1) && (3 == s__state))) || (((!((s__hit == 0)) && (blastFlag == 3)) && (s__s3__tmp__next_state___0 == 8640)) && (8640 == s__state))) || ((blastFlag == 1) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((((((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496) && (blastFlag == 3)) && (s__s3__tmp__next_state___0 == 3)) && (s__hit == 0)) && (8448 == s__state))) || (((blastFlag == 1) && (s__s3__tmp__next_state___0 == 8576)) && (8448 == s__state))) || ((((((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496) && (blastFlag == 3)) && (s__hit == 0)) && (8672 == s__state)) && !((s__s3__tmp__next_state___0 == 8497)))) || ((blastFlag == 1) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == s__state))) || (((((blastFlag == 2) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0)) && (s__state == 8466)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || (((blastFlag == 1) && (s__s3__tmp__next_state___0 == 8576)) && (8576 == s__state))) || (((s__s3__tmp__next_state___0 == 8482) && (8482 == s__state)) && (s__hit == 0))) || (((s__s3__tmp__next_state___0 == 8482) && (blastFlag == 1)) && (8482 == s__state))) || (((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (8608 == s__state)) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0))) || ((((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && !((s__s3__tmp__next_state___0 == 8496))) && (s__hit == 0)) && (s__state == 8466)) && !((s__s3__tmp__next_state___0 == 8497)))) || ((((((blastFlag == 2) && !((s__s3__tmp__next_state___0 == 8496))) && (8608 == s__state)) && (s__hit == 0)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296))) && !((s__s3__tmp__next_state___0 == 8497)))) || ((!((s__hit == 0)) && (blastFlag == 3)) && (8672 == s__state))) || ((((blastFlag == 2) && (s__hit == 0)) && (8528 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || ((!((s__hit == 0)) && (blastFlag == 2)) && (8656 == s__state))) || (((((blastFlag == 2) && ((((2 * ag_X) + (2 * ag_Y)) % 4294967296) == 8496)) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0)) && (8576 == s__state))) || (((((blastFlag == 3) && (s__hit == 0)) && (8672 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296))) && !((s__s3__tmp__next_state___0 == 8497)))) || (((blastFlag == 3) && (s__s3__tmp__next_state___0 == 8640)) && (3 == s__state))) || (((((blastFlag == 2) && (s__s3__tmp__next_state___0 == 8576)) && (s__hit == 0)) && (8448 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) || (((((blastFlag == 3) && (s__s3__tmp__next_state___0 == 3)) && (s__hit == 0)) && (8448 == s__state)) && (8448 == (((2 * ag_X) + (2 * ag_Y)) % 4294967296)))) RESULT: Ultimate proved your program to be correct! [2023-12-21 21:30:23,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...