/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_clnt_2.BV.c.cil-1a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 21:28:55,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 21:28:55,193 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 21:28:55,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 21:28:55,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 21:28:55,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 21:28:55,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 21:28:55,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 21:28:55,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 21:28:55,235 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 21:28:55,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 21:28:55,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 21:28:55,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 21:28:55,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 21:28:55,238 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 21:28:55,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 21:28:55,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 21:28:55,239 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 21:28:55,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 21:28:55,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 21:28:55,240 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 21:28:55,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 21:28:55,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 21:28:55,241 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 21:28:55,241 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 21:28:55,242 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 21:28:55,242 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 21:28:55,242 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 21:28:55,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 21:28:55,243 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 21:28:55,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 21:28:55,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 21:28:55,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 21:28:55,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 21:28:55,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:28:55,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 21:28:55,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 21:28:55,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 21:28:55,245 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 21:28:55,245 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 21:28:55,245 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 21:28:55,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 21:28:55,246 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 21:28:55,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 21:28:55,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 21:28:55,247 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 21:28:55,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 21:28:55,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 21:28:55,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 21:28:55,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 21:28:55,481 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 21:28:55,482 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 21:28:55,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-1a.c [2023-12-21 21:28:56,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 21:28:56,788 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 21:28:56,788 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-1a.c [2023-12-21 21:28:56,799 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/929717f05/603166d20ff64fefb65235128a8d6f7c/FLAGa1ce25a8a [2023-12-21 21:28:56,810 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/929717f05/603166d20ff64fefb65235128a8d6f7c [2023-12-21 21:28:56,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 21:28:56,813 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 21:28:56,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 21:28:56,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 21:28:56,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 21:28:56,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:28:56" (1/1) ... [2023-12-21 21:28:56,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@169abbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:56, skipping insertion in model container [2023-12-21 21:28:56,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:28:56" (1/1) ... [2023-12-21 21:28:56,855 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 21:28:57,055 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_clnt_2.BV.c.cil-1a.c[37676,37689] [2023-12-21 21:28:57,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:28:57,071 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 21:28:57,115 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_clnt_2.BV.c.cil-1a.c[37676,37689] [2023-12-21 21:28:57,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:28:57,128 INFO L206 MainTranslator]: Completed translation [2023-12-21 21:28:57,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57 WrapperNode [2023-12-21 21:28:57,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 21:28:57,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 21:28:57,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 21:28:57,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 21:28:57,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,180 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 470 [2023-12-21 21:28:57,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 21:28:57,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 21:28:57,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 21:28:57,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 21:28:57,190 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,194 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,205 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 21:28:57,205 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 21:28:57,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 21:28:57,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 21:28:57,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 21:28:57,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (1/1) ... [2023-12-21 21:28:57,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:28:57,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 21:28:57,270 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 21:28:57,292 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 21:28:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 21:28:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 21:28:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 21:28:57,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 21:28:57,411 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 21:28:57,415 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 21:28:57,437 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-21 21:28:57,855 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2023-12-21 21:28:57,855 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2023-12-21 21:28:57,855 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 21:28:57,906 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 21:28:57,906 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 21:28:57,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:28:57 BoogieIcfgContainer [2023-12-21 21:28:57,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 21:28:57,909 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 21:28:57,909 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 21:28:57,911 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 21:28:57,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:28:56" (1/3) ... [2023-12-21 21:28:57,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23131f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:28:57, skipping insertion in model container [2023-12-21 21:28:57,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:28:57" (2/3) ... [2023-12-21 21:28:57,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23131f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:28:57, skipping insertion in model container [2023-12-21 21:28:57,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:28:57" (3/3) ... [2023-12-21 21:28:57,915 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2023-12-21 21:28:57,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 21:28:57,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 21:28:57,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 21:28:57,987 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;@20578852, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 21:28:57,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 21:28:57,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 116 states have (on average 1.7758620689655173) internal successors, (206), 117 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 21:28:57,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-21 21:28:57,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:28:57,999 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] [2023-12-21 21:28:57,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:28:58,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:28:58,003 INFO L85 PathProgramCache]: Analyzing trace with hash -334858524, now seen corresponding path program 1 times [2023-12-21 21:28:58,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:28:58,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123866428] [2023-12-21 21:28:58,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:28:58,012 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 21:28:58,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:28:58,014 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 21:28:58,015 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 21:28:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:28:58,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:28:58,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:28:58,120 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 21:28:58,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:28:58,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:28:58,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123866428] [2023-12-21 21:28:58,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123866428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:28:58,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:28:58,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:28:58,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039628507] [2023-12-21 21:28:58,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:28:58,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:28:58,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:28:58,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:28:58,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:28:58,162 INFO L87 Difference]: Start difference. First operand has 118 states, 116 states have (on average 1.7758620689655173) internal successors, (206), 117 states have internal predecessors, (206), 0 states have call successors, (0), 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 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states 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 21:28:58,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:28:58,337 INFO L93 Difference]: Finished difference Result 232 states and 407 transitions. [2023-12-21 21:28:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:28:58,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2023-12-21 21:28:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:28:58,350 INFO L225 Difference]: With dead ends: 232 [2023-12-21 21:28:58,350 INFO L226 Difference]: Without dead ends: 108 [2023-12-21 21:28:58,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 21:28:58,358 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 6 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:28:58,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 302 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:28:58,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-21 21:28:58,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-12-21 21:28:58,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 107 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 21:28:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 165 transitions. [2023-12-21 21:28:58,392 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 165 transitions. Word has length 22 [2023-12-21 21:28:58,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:28:58,393 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 165 transitions. [2023-12-21 21:28:58,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states 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 21:28:58,393 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 165 transitions. [2023-12-21 21:28:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-21 21:28:58,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:28:58,394 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:28:58,403 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 (2)] Forceful destruction successful, exit code 0 [2023-12-21 21:28:58,597 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 21:28:58,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:28:58,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:28:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash 2092826529, now seen corresponding path program 1 times [2023-12-21 21:28:58,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:28:58,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091371503] [2023-12-21 21:28:58,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:28:58,599 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 21:28:58,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:28:58,600 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 21:28:58,602 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 21:28:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:28:58,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:28:58,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:28:58,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:28:58,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:28:58,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:28:58,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091371503] [2023-12-21 21:28:58,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091371503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:28:58,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:28:58,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:28:58,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9917448] [2023-12-21 21:28:58,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:28:58,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:28:58,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:28:58,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:28:58,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:28:58,676 INFO L87 Difference]: Start difference. First operand 108 states and 165 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:28:58,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:28:58,787 INFO L93 Difference]: Finished difference Result 226 states and 349 transitions. [2023-12-21 21:28:58,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:28:58,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-12-21 21:28:58,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:28:58,793 INFO L225 Difference]: With dead ends: 226 [2023-12-21 21:28:58,793 INFO L226 Difference]: Without dead ends: 126 [2023-12-21 21:28:58,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 21:28:58,795 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 15 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:28:58,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 229 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:28:58,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-21 21:28:58,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2023-12-21 21:28:58,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.5206611570247934) internal successors, (184), 121 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 21:28:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 184 transitions. [2023-12-21 21:28:58,816 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 184 transitions. Word has length 32 [2023-12-21 21:28:58,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:28:58,816 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 184 transitions. [2023-12-21 21:28:58,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:28:58,816 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 184 transitions. [2023-12-21 21:28:58,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-21 21:28:58,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:28:58,818 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 21:28:58,820 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 21:28:59,020 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 21:28:59,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:28:59,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:28:59,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1856062932, now seen corresponding path program 1 times [2023-12-21 21:28:59,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:28:59,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553658163] [2023-12-21 21:28:59,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:28:59,025 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 21:28:59,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:28:59,026 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 21:28:59,041 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 21:28:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:28:59,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:28:59,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:28:59,131 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 21:28:59,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:28:59,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:28:59,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553658163] [2023-12-21 21:28:59,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553658163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:28:59,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:28:59,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:28:59,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615051872] [2023-12-21 21:28:59,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:28:59,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:28:59,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:28:59,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:28:59,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:28:59,146 INFO L87 Difference]: Start difference. First operand 122 states and 184 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 21:28:59,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:28:59,262 INFO L93 Difference]: Finished difference Result 256 states and 391 transitions. [2023-12-21 21:28:59,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:28:59,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 45 [2023-12-21 21:28:59,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:28:59,265 INFO L225 Difference]: With dead ends: 256 [2023-12-21 21:28:59,265 INFO L226 Difference]: Without dead ends: 142 [2023-12-21 21:28:59,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 21:28:59,271 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 15 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:28:59,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 242 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:28:59,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-21 21:28:59,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2023-12-21 21:28:59,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.4963503649635037) internal successors, (205), 137 states have internal predecessors, (205), 0 states have call successors, (0), 0 states 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 21:28:59,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 205 transitions. [2023-12-21 21:28:59,286 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 205 transitions. Word has length 45 [2023-12-21 21:28:59,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:28:59,287 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 205 transitions. [2023-12-21 21:28:59,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 21:28:59,287 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 205 transitions. [2023-12-21 21:28:59,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 21:28:59,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:28:59,289 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:28:59,292 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 (4)] Forceful destruction successful, exit code 0 [2023-12-21 21:28:59,489 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 21:28:59,490 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:28:59,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:28:59,490 INFO L85 PathProgramCache]: Analyzing trace with hash 299068387, now seen corresponding path program 1 times [2023-12-21 21:28:59,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:28:59,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937057827] [2023-12-21 21:28:59,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:28:59,491 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 21:28:59,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:28:59,492 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 21:28:59,504 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 21:28:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:28:59,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:28:59,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:28:59,616 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-21 21:28:59,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:28:59,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:28:59,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937057827] [2023-12-21 21:28:59,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937057827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:28:59,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:28:59,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:28:59,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011253246] [2023-12-21 21:28:59,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:28:59,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:28:59,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:28:59,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:28:59,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:28:59,618 INFO L87 Difference]: Start difference. First operand 138 states and 205 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:28:59,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:28:59,778 INFO L93 Difference]: Finished difference Result 310 states and 476 transitions. [2023-12-21 21:28:59,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:28:59,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2023-12-21 21:28:59,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:28:59,781 INFO L225 Difference]: With dead ends: 310 [2023-12-21 21:28:59,781 INFO L226 Difference]: Without dead ends: 180 [2023-12-21 21:28:59,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 21:28:59,786 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 28 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:28:59,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 224 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:28:59,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-21 21:28:59,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2023-12-21 21:28:59,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.4147727272727273) internal successors, (249), 176 states have internal predecessors, (249), 0 states have call successors, (0), 0 states 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 21:28:59,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 249 transitions. [2023-12-21 21:28:59,797 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 249 transitions. Word has length 61 [2023-12-21 21:28:59,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:28:59,797 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 249 transitions. [2023-12-21 21:28:59,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:28:59,797 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 249 transitions. [2023-12-21 21:28:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 21:28:59,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:28:59,799 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:28:59,810 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 21:29:00,007 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 21:29:00,008 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:00,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:00,008 INFO L85 PathProgramCache]: Analyzing trace with hash 517923105, now seen corresponding path program 1 times [2023-12-21 21:29:00,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:00,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124133151] [2023-12-21 21:29:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:00,009 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 21:29:00,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:00,010 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 21:29:00,013 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 21:29:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:00,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:00,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:00,092 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-21 21:29:00,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:00,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:00,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124133151] [2023-12-21 21:29:00,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124133151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:00,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:00,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:00,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057336937] [2023-12-21 21:29:00,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:00,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:00,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:00,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:00,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:00,095 INFO L87 Difference]: Start difference. First operand 177 states and 249 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:00,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:00,204 INFO L93 Difference]: Finished difference Result 368 states and 525 transitions. [2023-12-21 21:29:00,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:00,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2023-12-21 21:29:00,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:00,208 INFO L225 Difference]: With dead ends: 368 [2023-12-21 21:29:00,208 INFO L226 Difference]: Without dead ends: 199 [2023-12-21 21:29:00,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 21:29:00,209 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 15 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:00,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 247 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:00,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-12-21 21:29:00,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2023-12-21 21:29:00,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 1.402061855670103) internal successors, (272), 194 states have internal predecessors, (272), 0 states have call successors, (0), 0 states 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 21:29:00,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 272 transitions. [2023-12-21 21:29:00,224 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 272 transitions. Word has length 61 [2023-12-21 21:29:00,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:00,229 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 272 transitions. [2023-12-21 21:29:00,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:00,233 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 272 transitions. [2023-12-21 21:29:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 21:29:00,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:00,235 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 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] [2023-12-21 21:29:00,242 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 (6)] Ended with exit code 0 [2023-12-21 21:29:00,435 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 21:29:00,436 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:00,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:00,436 INFO L85 PathProgramCache]: Analyzing trace with hash 79642311, now seen corresponding path program 1 times [2023-12-21 21:29:00,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:00,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020231294] [2023-12-21 21:29:00,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:00,437 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 21:29:00,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:00,439 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 21:29:00,444 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 21:29:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:00,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:00,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 21:29:00,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:00,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:00,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020231294] [2023-12-21 21:29:00,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020231294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:00,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:00,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:00,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849878398] [2023-12-21 21:29:00,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:00,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:00,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:00,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:00,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:00,550 INFO L87 Difference]: Start difference. First operand 195 states and 272 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 21:29:00,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:00,650 INFO L93 Difference]: Finished difference Result 405 states and 573 transitions. [2023-12-21 21:29:00,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:00,650 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 76 [2023-12-21 21:29:00,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:00,652 INFO L225 Difference]: With dead ends: 405 [2023-12-21 21:29:00,652 INFO L226 Difference]: Without dead ends: 218 [2023-12-21 21:29:00,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 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 21:29:00,653 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 13 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:00,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 246 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:00,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-21 21:29:00,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 215. [2023-12-21 21:29:00,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.3878504672897196) internal successors, (297), 214 states have internal predecessors, (297), 0 states have call successors, (0), 0 states 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 21:29:00,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 297 transitions. [2023-12-21 21:29:00,662 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 297 transitions. Word has length 76 [2023-12-21 21:29:00,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:00,662 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 297 transitions. [2023-12-21 21:29:00,662 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 21:29:00,662 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 297 transitions. [2023-12-21 21:29:00,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 21:29:00,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:00,668 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-21 21:29:00,670 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 21:29:00,870 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 21:29:00,871 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:00,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:00,871 INFO L85 PathProgramCache]: Analyzing trace with hash 991251583, now seen corresponding path program 1 times [2023-12-21 21:29:00,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:00,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880351641] [2023-12-21 21:29:00,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:00,872 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 21:29:00,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:00,873 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 21:29:00,877 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 21:29:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:00,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:00,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 21:29:00,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:00,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:00,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880351641] [2023-12-21 21:29:00,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880351641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:00,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:00,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:00,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380883289] [2023-12-21 21:29:00,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:00,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:00,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:00,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:00,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:00,981 INFO L87 Difference]: Start difference. First operand 215 states and 297 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 21:29:01,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:01,012 INFO L93 Difference]: Finished difference Result 626 states and 865 transitions. [2023-12-21 21:29:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:01,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 95 [2023-12-21 21:29:01,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:01,014 INFO L225 Difference]: With dead ends: 626 [2023-12-21 21:29:01,014 INFO L226 Difference]: Without dead ends: 419 [2023-12-21 21:29:01,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 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 21:29:01,015 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 122 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:01,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 341 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:01,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-12-21 21:29:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2023-12-21 21:29:01,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 1.3732057416267942) internal successors, (574), 418 states have internal predecessors, (574), 0 states have call successors, (0), 0 states 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 21:29:01,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 574 transitions. [2023-12-21 21:29:01,025 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 574 transitions. Word has length 95 [2023-12-21 21:29:01,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:01,025 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 574 transitions. [2023-12-21 21:29:01,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 21:29:01,026 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 574 transitions. [2023-12-21 21:29:01,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 21:29:01,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:01,027 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-21 21:29:01,038 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 21:29:01,238 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 21:29:01,239 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:01,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:01,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1424980669, now seen corresponding path program 1 times [2023-12-21 21:29:01,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:01,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298138757] [2023-12-21 21:29:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:01,240 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 21:29:01,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:01,241 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 21:29:01,242 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 21:29:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:01,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:01,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-21 21:29:01,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:01,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:01,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298138757] [2023-12-21 21:29:01,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298138757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:01,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:01,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:01,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487468920] [2023-12-21 21:29:01,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:01,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:01,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:01,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:01,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:01,329 INFO L87 Difference]: Start difference. First operand 419 states and 574 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 21:29:01,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:01,353 INFO L93 Difference]: Finished difference Result 850 states and 1163 transitions. [2023-12-21 21:29:01,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:01,354 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 95 [2023-12-21 21:29:01,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:01,355 INFO L225 Difference]: With dead ends: 850 [2023-12-21 21:29:01,356 INFO L226 Difference]: Without dead ends: 439 [2023-12-21 21:29:01,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 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 21:29:01,358 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 11 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:01,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 324 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:01,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-21 21:29:01,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2023-12-21 21:29:01,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.36986301369863) internal successors, (600), 438 states have internal predecessors, (600), 0 states have call successors, (0), 0 states 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 21:29:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 600 transitions. [2023-12-21 21:29:01,373 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 600 transitions. Word has length 95 [2023-12-21 21:29:01,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:01,374 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 600 transitions. [2023-12-21 21:29:01,374 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 21:29:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 600 transitions. [2023-12-21 21:29:01,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 21:29:01,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:01,375 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:01,381 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 (9)] Ended with exit code 0 [2023-12-21 21:29:01,578 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 21:29:01,579 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:01,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:01,579 INFO L85 PathProgramCache]: Analyzing trace with hash 44372736, now seen corresponding path program 1 times [2023-12-21 21:29:01,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:01,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994445903] [2023-12-21 21:29:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:01,580 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 21:29:01,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:01,581 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 21:29:01,581 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 21:29:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:01,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:01,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-21 21:29:01,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:01,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:01,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994445903] [2023-12-21 21:29:01,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994445903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:01,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:01,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:29:01,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171824688] [2023-12-21 21:29:01,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:01,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:01,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:01,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:01,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:01,670 INFO L87 Difference]: Start difference. First operand 439 states and 600 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 21:29:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:01,693 INFO L93 Difference]: Finished difference Result 894 states and 1220 transitions. [2023-12-21 21:29:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:01,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 21:29:01,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:01,695 INFO L225 Difference]: With dead ends: 894 [2023-12-21 21:29:01,695 INFO L226 Difference]: Without dead ends: 463 [2023-12-21 21:29:01,696 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 21:29:01,696 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 20 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:01,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 298 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:01,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-12-21 21:29:01,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2023-12-21 21:29:01,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.3658008658008658) internal successors, (631), 462 states have internal predecessors, (631), 0 states have call successors, (0), 0 states 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 21:29:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 631 transitions. [2023-12-21 21:29:01,707 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 631 transitions. Word has length 96 [2023-12-21 21:29:01,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:01,708 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 631 transitions. [2023-12-21 21:29:01,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 21:29:01,708 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 631 transitions. [2023-12-21 21:29:01,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 21:29:01,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:01,709 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:01,714 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 (10)] Ended with exit code 0 [2023-12-21 21:29:01,915 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 21:29:01,915 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:01,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:01,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1725042441, now seen corresponding path program 1 times [2023-12-21 21:29:01,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:01,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455923235] [2023-12-21 21:29:01,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:01,916 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 21:29:01,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:01,918 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 21:29:01,920 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 21:29:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:01,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:01,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-21 21:29:02,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:02,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:02,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455923235] [2023-12-21 21:29:02,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455923235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:02,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:02,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:02,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795646366] [2023-12-21 21:29:02,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:02,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:02,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:02,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:02,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:02,013 INFO L87 Difference]: Start difference. First operand 463 states and 631 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 21:29:02,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:02,063 INFO L93 Difference]: Finished difference Result 1081 states and 1479 transitions. [2023-12-21 21:29:02,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:02,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 97 [2023-12-21 21:29:02,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:02,066 INFO L225 Difference]: With dead ends: 1081 [2023-12-21 21:29:02,066 INFO L226 Difference]: Without dead ends: 650 [2023-12-21 21:29:02,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 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 21:29:02,068 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 122 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:02,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 441 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-12-21 21:29:02,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2023-12-21 21:29:02,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 1.3636363636363635) internal successors, (885), 649 states have internal predecessors, (885), 0 states have call successors, (0), 0 states 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 21:29:02,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 885 transitions. [2023-12-21 21:29:02,082 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 885 transitions. Word has length 97 [2023-12-21 21:29:02,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:02,082 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 885 transitions. [2023-12-21 21:29:02,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 21:29:02,082 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 885 transitions. [2023-12-21 21:29:02,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 21:29:02,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:02,083 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:02,092 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 21:29:02,286 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 21:29:02,286 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:02,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:02,287 INFO L85 PathProgramCache]: Analyzing trace with hash -80395893, now seen corresponding path program 1 times [2023-12-21 21:29:02,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:02,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418961442] [2023-12-21 21:29:02,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:02,287 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 21:29:02,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:02,289 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 21:29:02,293 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 21:29:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:02,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:02,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 21:29:02,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:02,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:02,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418961442] [2023-12-21 21:29:02,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418961442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:02,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:02,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:02,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775872048] [2023-12-21 21:29:02,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:02,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:02,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:02,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:02,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:02,371 INFO L87 Difference]: Start difference. First operand 650 states and 885 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 21:29:02,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:02,397 INFO L93 Difference]: Finished difference Result 1292 states and 1757 transitions. [2023-12-21 21:29:02,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:02,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 97 [2023-12-21 21:29:02,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:02,400 INFO L225 Difference]: With dead ends: 1292 [2023-12-21 21:29:02,400 INFO L226 Difference]: Without dead ends: 674 [2023-12-21 21:29:02,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 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 21:29:02,401 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 10 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:02,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 333 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:02,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2023-12-21 21:29:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 674. [2023-12-21 21:29:02,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 1.3580980683506687) internal successors, (914), 673 states have internal predecessors, (914), 0 states have call successors, (0), 0 states 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 21:29:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 914 transitions. [2023-12-21 21:29:02,416 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 914 transitions. Word has length 97 [2023-12-21 21:29:02,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:02,416 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 914 transitions. [2023-12-21 21:29:02,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 21:29:02,416 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 914 transitions. [2023-12-21 21:29:02,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-21 21:29:02,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:02,419 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2023-12-21 21:29:02,421 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 21:29:02,621 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 21:29:02,621 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:02,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:02,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1360194326, now seen corresponding path program 1 times [2023-12-21 21:29:02,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:02,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921368207] [2023-12-21 21:29:02,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:02,623 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 21:29:02,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:02,624 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 21:29:02,626 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 21:29:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:02,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:02,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:02,708 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-21 21:29:02,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:02,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:02,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921368207] [2023-12-21 21:29:02,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921368207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:02,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:02,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:02,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441319464] [2023-12-21 21:29:02,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:02,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:02,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:02,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:02,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:02,710 INFO L87 Difference]: Start difference. First operand 674 states and 914 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:02,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:02,820 INFO L93 Difference]: Finished difference Result 1393 states and 1919 transitions. [2023-12-21 21:29:02,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:02,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2023-12-21 21:29:02,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:02,824 INFO L225 Difference]: With dead ends: 1393 [2023-12-21 21:29:02,824 INFO L226 Difference]: Without dead ends: 751 [2023-12-21 21:29:02,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 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 21:29:02,825 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 22 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:02,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 245 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:02,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-12-21 21:29:02,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 740. [2023-12-21 21:29:02,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 739 states have (on average 1.3464140730717185) internal successors, (995), 739 states have internal predecessors, (995), 0 states have call successors, (0), 0 states 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 21:29:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 995 transitions. [2023-12-21 21:29:02,842 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 995 transitions. Word has length 161 [2023-12-21 21:29:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:02,842 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 995 transitions. [2023-12-21 21:29:02,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 995 transitions. [2023-12-21 21:29:02,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-21 21:29:02,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:02,845 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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 21:29:02,852 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 21:29:03,048 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 21:29:03,048 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:03,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:03,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1246082140, now seen corresponding path program 1 times [2023-12-21 21:29:03,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:03,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750854914] [2023-12-21 21:29:03,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:03,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:29:03,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:03,050 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 21:29:03,055 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 21:29:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:03,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:29:03,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 415 proven. 18 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-12-21 21:29:03,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:29:03,382 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 400 proven. 33 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-12-21 21:29:03,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750854914] [2023-12-21 21:29:03,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750854914] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:29:03,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:29:03,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-21 21:29:03,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813692617] [2023-12-21 21:29:03,382 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:29:03,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 21:29:03,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:03,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 21:29:03,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-21 21:29:03,384 INFO L87 Difference]: Start difference. First operand 740 states and 995 transitions. Second operand has 8 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states 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 21:29:03,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:03,834 INFO L93 Difference]: Finished difference Result 1878 states and 2579 transitions. [2023-12-21 21:29:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 21:29:03,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 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 181 [2023-12-21 21:29:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:03,840 INFO L225 Difference]: With dead ends: 1878 [2023-12-21 21:29:03,840 INFO L226 Difference]: Without dead ends: 1170 [2023-12-21 21:29:03,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-21 21:29:03,843 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 477 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:03,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 741 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 21:29:03,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2023-12-21 21:29:03,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1072. [2023-12-21 21:29:03,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.3585434173669468) internal successors, (1455), 1071 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states 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 21:29:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1455 transitions. [2023-12-21 21:29:03,890 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1455 transitions. Word has length 181 [2023-12-21 21:29:03,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:03,890 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1455 transitions. [2023-12-21 21:29:03,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states 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 21:29:03,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1455 transitions. [2023-12-21 21:29:03,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-21 21:29:03,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:03,894 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:03,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:04,097 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 21:29:04,097 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:04,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:04,098 INFO L85 PathProgramCache]: Analyzing trace with hash -940581764, now seen corresponding path program 1 times [2023-12-21 21:29:04,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:04,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47640963] [2023-12-21 21:29:04,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:04,098 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 21:29:04,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:04,099 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 21:29:04,101 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 21:29:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:04,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:04,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-12-21 21:29:04,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:04,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:04,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47640963] [2023-12-21 21:29:04,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47640963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:04,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:04,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:04,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973587423] [2023-12-21 21:29:04,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:04,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:04,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:04,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:04,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:04,205 INFO L87 Difference]: Start difference. First operand 1072 states and 1455 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 21:29:04,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:04,327 INFO L93 Difference]: Finished difference Result 2208 states and 3045 transitions. [2023-12-21 21:29:04,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:04,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 205 [2023-12-21 21:29:04,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:04,332 INFO L225 Difference]: With dead ends: 2208 [2023-12-21 21:29:04,332 INFO L226 Difference]: Without dead ends: 1188 [2023-12-21 21:29:04,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 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 21:29:04,334 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 21 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:04,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 247 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:04,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2023-12-21 21:29:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1180. [2023-12-21 21:29:04,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1179 states have (on average 1.3426632739609838) internal successors, (1583), 1179 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states 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 21:29:04,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1583 transitions. [2023-12-21 21:29:04,367 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1583 transitions. Word has length 205 [2023-12-21 21:29:04,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:04,368 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1583 transitions. [2023-12-21 21:29:04,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 21:29:04,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1583 transitions. [2023-12-21 21:29:04,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-21 21:29:04,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:04,371 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:04,379 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 21:29:04,574 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 21:29:04,574 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:04,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:04,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1526857986, now seen corresponding path program 1 times [2023-12-21 21:29:04,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:04,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128846622] [2023-12-21 21:29:04,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:04,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:29:04,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:04,578 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 21:29:04,606 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 21:29:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:04,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:04,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-12-21 21:29:04,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:04,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:04,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128846622] [2023-12-21 21:29:04,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128846622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:04,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:04,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:04,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432266859] [2023-12-21 21:29:04,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:04,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:04,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:04,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:04,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:04,683 INFO L87 Difference]: Start difference. First operand 1180 states and 1583 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 21:29:04,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:04,810 INFO L93 Difference]: Finished difference Result 2440 states and 3337 transitions. [2023-12-21 21:29:04,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:04,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 205 [2023-12-21 21:29:04,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:04,815 INFO L225 Difference]: With dead ends: 2440 [2023-12-21 21:29:04,815 INFO L226 Difference]: Without dead ends: 1312 [2023-12-21 21:29:04,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 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 21:29:04,819 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 26 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:04,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 248 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:04,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2023-12-21 21:29:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1300. [2023-12-21 21:29:04,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 1299 states have (on average 1.3264049268668205) internal successors, (1723), 1299 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states 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 21:29:04,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1723 transitions. [2023-12-21 21:29:04,848 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1723 transitions. Word has length 205 [2023-12-21 21:29:04,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:04,849 INFO L495 AbstractCegarLoop]: Abstraction has 1300 states and 1723 transitions. [2023-12-21 21:29:04,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 21:29:04,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1723 transitions. [2023-12-21 21:29:04,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-12-21 21:29:04,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:04,853 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 11, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:04,859 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 21:29:05,056 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 21:29:05,056 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:05,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:05,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1883447448, now seen corresponding path program 1 times [2023-12-21 21:29:05,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:05,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366969715] [2023-12-21 21:29:05,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:05,058 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 21:29:05,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:05,059 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 21:29:05,084 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 21:29:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:05,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:05,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2023-12-21 21:29:05,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:05,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:05,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366969715] [2023-12-21 21:29:05,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366969715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:05,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:05,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:05,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993431536] [2023-12-21 21:29:05,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:05,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:05,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:05,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:05,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:05,166 INFO L87 Difference]: Start difference. First operand 1300 states and 1723 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 21:29:05,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:05,306 INFO L93 Difference]: Finished difference Result 2700 states and 3649 transitions. [2023-12-21 21:29:05,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:05,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 234 [2023-12-21 21:29:05,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:05,311 INFO L225 Difference]: With dead ends: 2700 [2023-12-21 21:29:05,311 INFO L226 Difference]: Without dead ends: 1452 [2023-12-21 21:29:05,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 232 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 21:29:05,314 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 30 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:05,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 248 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2023-12-21 21:29:05,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1444. [2023-12-21 21:29:05,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 1.3076923076923077) internal successors, (1887), 1443 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states 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 21:29:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1887 transitions. [2023-12-21 21:29:05,347 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1887 transitions. Word has length 234 [2023-12-21 21:29:05,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:05,347 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 1887 transitions. [2023-12-21 21:29:05,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 21:29:05,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1887 transitions. [2023-12-21 21:29:05,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-12-21 21:29:05,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:05,351 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 11, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:05,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-21 21:29:05,555 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 21:29:05,555 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:05,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:05,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1297171226, now seen corresponding path program 1 times [2023-12-21 21:29:05,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:05,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873857398] [2023-12-21 21:29:05,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:05,556 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 21:29:05,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:05,558 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 21:29:05,584 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 21:29:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:05,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:05,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:05,680 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 534 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-12-21 21:29:05,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:05,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:05,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873857398] [2023-12-21 21:29:05,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873857398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:05,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:05,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:05,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277304566] [2023-12-21 21:29:05,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:05,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:05,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:05,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:05,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:05,704 INFO L87 Difference]: Start difference. First operand 1444 states and 1887 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 21:29:05,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:05,754 INFO L93 Difference]: Finished difference Result 4112 states and 5387 transitions. [2023-12-21 21:29:05,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:05,754 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 234 [2023-12-21 21:29:05,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:05,763 INFO L225 Difference]: With dead ends: 4112 [2023-12-21 21:29:05,763 INFO L226 Difference]: Without dead ends: 2720 [2023-12-21 21:29:05,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 232 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 21:29:05,766 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 122 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:05,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 463 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2023-12-21 21:29:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 2718. [2023-12-21 21:29:05,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2717 states have (on average 1.3102686786897313) internal successors, (3560), 2717 states have internal predecessors, (3560), 0 states have call successors, (0), 0 states 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 21:29:05,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 3560 transitions. [2023-12-21 21:29:05,834 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 3560 transitions. Word has length 234 [2023-12-21 21:29:05,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:05,834 INFO L495 AbstractCegarLoop]: Abstraction has 2718 states and 3560 transitions. [2023-12-21 21:29:05,835 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 21:29:05,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 3560 transitions. [2023-12-21 21:29:05,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-21 21:29:05,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:05,840 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 12, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:05,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-21 21:29:06,045 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 21:29:06,045 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:06,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:06,046 INFO L85 PathProgramCache]: Analyzing trace with hash 607593646, now seen corresponding path program 1 times [2023-12-21 21:29:06,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:06,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994993585] [2023-12-21 21:29:06,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:06,047 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 21:29:06,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:06,048 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 21:29:06,076 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 21:29:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:06,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:06,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:06,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-12-21 21:29:06,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:06,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:06,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994993585] [2023-12-21 21:29:06,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994993585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:06,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:06,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:06,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937475689] [2023-12-21 21:29:06,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:06,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:06,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:06,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:06,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:06,161 INFO L87 Difference]: Start difference. First operand 2718 states and 3560 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 21:29:06,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:06,318 INFO L93 Difference]: Finished difference Result 5528 states and 7307 transitions. [2023-12-21 21:29:06,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:06,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 257 [2023-12-21 21:29:06,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:06,328 INFO L225 Difference]: With dead ends: 5528 [2023-12-21 21:29:06,328 INFO L226 Difference]: Without dead ends: 2862 [2023-12-21 21:29:06,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 255 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 21:29:06,332 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 27 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:06,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 248 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:06,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2023-12-21 21:29:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2846. [2023-12-21 21:29:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2845 states have (on average 1.3033391915641477) internal successors, (3708), 2845 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states 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 21:29:06,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 3708 transitions. [2023-12-21 21:29:06,396 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 3708 transitions. Word has length 257 [2023-12-21 21:29:06,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:06,397 INFO L495 AbstractCegarLoop]: Abstraction has 2846 states and 3708 transitions. [2023-12-21 21:29:06,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 21:29:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 3708 transitions. [2023-12-21 21:29:06,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-21 21:29:06,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:06,402 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 12, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:06,408 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 21:29:06,605 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 21:29:06,605 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:06,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:06,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1425440005, now seen corresponding path program 1 times [2023-12-21 21:29:06,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:06,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770878268] [2023-12-21 21:29:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:06,606 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 21:29:06,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:06,607 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 21:29:06,610 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 21:29:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:06,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:06,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:06,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2023-12-21 21:29:06,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:06,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:06,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770878268] [2023-12-21 21:29:06,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770878268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:06,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:06,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:06,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360913433] [2023-12-21 21:29:06,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:06,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:06,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:06,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:06,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:06,730 INFO L87 Difference]: Start difference. First operand 2846 states and 3708 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 21:29:06,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:06,891 INFO L93 Difference]: Finished difference Result 5944 states and 7907 transitions. [2023-12-21 21:29:06,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:06,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 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 268 [2023-12-21 21:29:06,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:06,902 INFO L225 Difference]: With dead ends: 5944 [2023-12-21 21:29:06,903 INFO L226 Difference]: Without dead ends: 3150 [2023-12-21 21:29:06,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 266 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 21:29:06,907 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 32 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:06,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 243 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2023-12-21 21:29:07,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3134. [2023-12-21 21:29:07,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 1.2882221512926908) internal successors, (4036), 3133 states have internal predecessors, (4036), 0 states have call successors, (0), 0 states 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 21:29:07,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 4036 transitions. [2023-12-21 21:29:07,019 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 4036 transitions. Word has length 268 [2023-12-21 21:29:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:07,019 INFO L495 AbstractCegarLoop]: Abstraction has 3134 states and 4036 transitions. [2023-12-21 21:29:07,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 21:29:07,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 4036 transitions. [2023-12-21 21:29:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-21 21:29:07,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:07,027 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 13, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:07,031 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 21:29:07,230 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 21:29:07,231 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:07,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:07,231 INFO L85 PathProgramCache]: Analyzing trace with hash -225761092, now seen corresponding path program 1 times [2023-12-21 21:29:07,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:07,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565193582] [2023-12-21 21:29:07,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:07,232 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 21:29:07,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:07,233 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 21:29:07,234 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 21:29:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:07,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:07,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 620 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2023-12-21 21:29:07,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:07,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:07,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565193582] [2023-12-21 21:29:07,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565193582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:07,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:07,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424472583] [2023-12-21 21:29:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:07,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:07,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:07,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:07,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:07,359 INFO L87 Difference]: Start difference. First operand 3134 states and 4036 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:07,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:07,530 INFO L93 Difference]: Finished difference Result 6544 states and 8611 transitions. [2023-12-21 21:29:07,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:07,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 303 [2023-12-21 21:29:07,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:07,541 INFO L225 Difference]: With dead ends: 6544 [2023-12-21 21:29:07,542 INFO L226 Difference]: Without dead ends: 3462 [2023-12-21 21:29:07,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 301 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 21:29:07,548 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 39 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:07,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 241 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3462 states. [2023-12-21 21:29:07,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3462 to 3454. [2023-12-21 21:29:07,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3453 states have (on average 1.2730958586736172) internal successors, (4396), 3453 states have internal predecessors, (4396), 0 states have call successors, (0), 0 states 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 21:29:07,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 4396 transitions. [2023-12-21 21:29:07,634 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 4396 transitions. Word has length 303 [2023-12-21 21:29:07,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:07,635 INFO L495 AbstractCegarLoop]: Abstraction has 3454 states and 4396 transitions. [2023-12-21 21:29:07,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:29:07,635 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 4396 transitions. [2023-12-21 21:29:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-12-21 21:29:07,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:07,643 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 13, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:07,648 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 21:29:07,847 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 21:29:07,848 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:07,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:07,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1660519142, now seen corresponding path program 1 times [2023-12-21 21:29:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:07,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825813377] [2023-12-21 21:29:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:07,849 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 21:29:07,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:07,850 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 21:29:07,875 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 21:29:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:07,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:07,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 643 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-12-21 21:29:07,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:07,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:07,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825813377] [2023-12-21 21:29:07,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825813377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:08,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:08,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:08,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235247835] [2023-12-21 21:29:08,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:08,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:08,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:08,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:08,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:08,001 INFO L87 Difference]: Start difference. First operand 3454 states and 4396 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 21:29:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:08,089 INFO L93 Difference]: Finished difference Result 9149 states and 11674 transitions. [2023-12-21 21:29:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:08,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 304 [2023-12-21 21:29:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:08,120 INFO L225 Difference]: With dead ends: 9149 [2023-12-21 21:29:08,121 INFO L226 Difference]: Without dead ends: 5747 [2023-12-21 21:29:08,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 302 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 21:29:08,125 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 126 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 382 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 21:29:08,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 382 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:08,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2023-12-21 21:29:08,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 5745. [2023-12-21 21:29:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5745 states, 5744 states have (on average 1.2747214484679665) internal successors, (7322), 5744 states have internal predecessors, (7322), 0 states have call successors, (0), 0 states 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 21:29:08,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5745 states to 5745 states and 7322 transitions. [2023-12-21 21:29:08,256 INFO L78 Accepts]: Start accepts. Automaton has 5745 states and 7322 transitions. Word has length 304 [2023-12-21 21:29:08,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:08,257 INFO L495 AbstractCegarLoop]: Abstraction has 5745 states and 7322 transitions. [2023-12-21 21:29:08,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 21:29:08,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5745 states and 7322 transitions. [2023-12-21 21:29:08,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-12-21 21:29:08,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:08,267 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 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 21:29:08,273 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 (22)] Ended with exit code 0 [2023-12-21 21:29:08,470 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 21:29:08,471 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:08,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:08,471 INFO L85 PathProgramCache]: Analyzing trace with hash -748183651, now seen corresponding path program 1 times [2023-12-21 21:29:08,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:08,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506921205] [2023-12-21 21:29:08,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:08,471 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 21:29:08,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:08,473 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 21:29:08,474 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 21:29:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:08,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:29:08,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:08,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1442 backedges. 835 proven. 9 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2023-12-21 21:29:08,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:29:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1442 backedges. 835 proven. 9 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2023-12-21 21:29:08,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:08,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506921205] [2023-12-21 21:29:08,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506921205] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:29:08,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:29:08,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 21:29:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959777791] [2023-12-21 21:29:08,717 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:29:08,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 21:29:08,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:08,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 21:29:08,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:29:08,718 INFO L87 Difference]: Start difference. First operand 5745 states and 7322 transitions. Second operand has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 21:29:09,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:09,366 INFO L93 Difference]: Finished difference Result 13309 states and 16864 transitions. [2023-12-21 21:29:09,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 21:29:09,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 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 339 [2023-12-21 21:29:09,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:09,381 INFO L225 Difference]: With dead ends: 13309 [2023-12-21 21:29:09,382 INFO L226 Difference]: Without dead ends: 7618 [2023-12-21 21:29:09,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-21 21:29:09,391 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 448 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:09,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 739 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 21:29:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2023-12-21 21:29:09,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 5805. [2023-12-21 21:29:09,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5805 states, 5804 states have (on average 1.2543073742246726) internal successors, (7280), 5804 states have internal predecessors, (7280), 0 states have call successors, (0), 0 states 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 21:29:09,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5805 states to 5805 states and 7280 transitions. [2023-12-21 21:29:09,534 INFO L78 Accepts]: Start accepts. Automaton has 5805 states and 7280 transitions. Word has length 339 [2023-12-21 21:29:09,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:09,535 INFO L495 AbstractCegarLoop]: Abstraction has 5805 states and 7280 transitions. [2023-12-21 21:29:09,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 21:29:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5805 states and 7280 transitions. [2023-12-21 21:29:09,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-12-21 21:29:09,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:09,547 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 16, 15, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:09,553 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 21:29:09,750 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 21:29:09,750 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:09,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:09,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1445594396, now seen corresponding path program 1 times [2023-12-21 21:29:09,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:09,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226390360] [2023-12-21 21:29:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:09,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:29:09,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:09,752 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 21:29:09,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-21 21:29:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:09,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:09,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:09,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 752 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2023-12-21 21:29:09,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:09,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:09,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226390360] [2023-12-21 21:29:09,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226390360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:09,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:09,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:09,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981648882] [2023-12-21 21:29:09,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:09,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:09,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:09,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:09,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:09,887 INFO L87 Difference]: Start difference. First operand 5805 states and 7280 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states 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 21:29:10,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:10,072 INFO L93 Difference]: Finished difference Result 10579 states and 13455 transitions. [2023-12-21 21:29:10,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:10,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 377 [2023-12-21 21:29:10,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:10,081 INFO L225 Difference]: With dead ends: 10579 [2023-12-21 21:29:10,081 INFO L226 Difference]: Without dead ends: 4336 [2023-12-21 21:29:10,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 375 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 21:29:10,088 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 35 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:10,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 249 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:29:10,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2023-12-21 21:29:10,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 4172. [2023-12-21 21:29:10,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4172 states, 4171 states have (on average 1.2320786382162552) internal successors, (5139), 4171 states have internal predecessors, (5139), 0 states have call successors, (0), 0 states 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 21:29:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4172 states to 4172 states and 5139 transitions. [2023-12-21 21:29:10,160 INFO L78 Accepts]: Start accepts. Automaton has 4172 states and 5139 transitions. Word has length 377 [2023-12-21 21:29:10,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:10,160 INFO L495 AbstractCegarLoop]: Abstraction has 4172 states and 5139 transitions. [2023-12-21 21:29:10,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states 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 21:29:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 4172 states and 5139 transitions. [2023-12-21 21:29:10,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2023-12-21 21:29:10,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:10,171 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 17, 16, 15, 13, 13, 12, 12, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 21:29:10,179 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 21:29:10,375 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 21:29:10,376 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:10,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash -421686774, now seen corresponding path program 1 times [2023-12-21 21:29:10,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:10,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66635406] [2023-12-21 21:29:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:10,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:29:10,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:10,378 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 21:29:10,425 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 21:29:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:10,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:29:10,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 1351 proven. 0 refuted. 0 times theorem prover too weak. 905 trivial. 0 not checked. [2023-12-21 21:29:10,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:29:10,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:10,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66635406] [2023-12-21 21:29:10,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66635406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:29:10,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:29:10,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:29:10,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568269881] [2023-12-21 21:29:10,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:29:10,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:29:10,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:10,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:29:10,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:29:10,734 INFO L87 Difference]: Start difference. First operand 4172 states and 5139 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 21:29:10,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:10,787 INFO L93 Difference]: Finished difference Result 6791 states and 8381 transitions. [2023-12-21 21:29:10,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:29:10,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 451 [2023-12-21 21:29:10,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:10,792 INFO L225 Difference]: With dead ends: 6791 [2023-12-21 21:29:10,792 INFO L226 Difference]: Without dead ends: 3242 [2023-12-21 21:29:10,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 449 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 21:29:10,797 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 35 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:10,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 373 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:29:10,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2023-12-21 21:29:10,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 3240. [2023-12-21 21:29:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3240 states, 3239 states have (on average 1.2516208706390861) internal successors, (4054), 3239 states have internal predecessors, (4054), 0 states have call successors, (0), 0 states 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 21:29:10,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3240 states to 3240 states and 4054 transitions. [2023-12-21 21:29:10,855 INFO L78 Accepts]: Start accepts. Automaton has 3240 states and 4054 transitions. Word has length 451 [2023-12-21 21:29:10,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:10,856 INFO L495 AbstractCegarLoop]: Abstraction has 3240 states and 4054 transitions. [2023-12-21 21:29:10,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 21:29:10,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3240 states and 4054 transitions. [2023-12-21 21:29:10,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2023-12-21 21:29:10,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:29:10,864 INFO L195 NwaCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 21, 20, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:10,870 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 21:29:11,068 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 21:29:11,068 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:29:11,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:29:11,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1015243938, now seen corresponding path program 1 times [2023-12-21 21:29:11,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:29:11,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485323990] [2023-12-21 21:29:11,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:29:11,070 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 21:29:11,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:29:11,071 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 21:29:11,089 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 21:29:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:29:11,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 21:29:11,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:29:11,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 2011 proven. 13 refuted. 0 times theorem prover too weak. 1896 trivial. 0 not checked. [2023-12-21 21:29:11,271 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:29:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 2011 proven. 13 refuted. 0 times theorem prover too weak. 1896 trivial. 0 not checked. [2023-12-21 21:29:11,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:29:11,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485323990] [2023-12-21 21:29:11,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485323990] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 21:29:11,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 21:29:11,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 21:29:11,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375293680] [2023-12-21 21:29:11,356 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 21:29:11,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 21:29:11,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:29:11,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 21:29:11,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 21:29:11,357 INFO L87 Difference]: Start difference. First operand 3240 states and 4054 transitions. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states 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 21:29:11,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:29:11,568 INFO L93 Difference]: Finished difference Result 3448 states and 4319 transitions. [2023-12-21 21:29:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:29:11,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 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 595 [2023-12-21 21:29:11,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:29:11,569 INFO L225 Difference]: With dead ends: 3448 [2023-12-21 21:29:11,569 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 21:29:11,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1192 GetRequests, 1186 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-21 21:29:11,572 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 122 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:29:11,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 240 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:29:11,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 21:29:11,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 21:29:11,573 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 21:29:11,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 21:29:11,573 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 595 [2023-12-21 21:29:11,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:29:11,573 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 21:29:11,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states 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 21:29:11,573 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 21:29:11,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 21:29:11,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 21:29:11,587 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 21:29:11,780 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 21:29:11,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 21:29:12,871 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 503) no Hoare annotation was computed. [2023-12-21 21:29:12,872 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 476) no Hoare annotation was computed. [2023-12-21 21:29:12,872 INFO L899 garLoopResultBuilder]: For program point L465-1(lines 465 476) no Hoare annotation was computed. [2023-12-21 21:29:12,872 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 337) no Hoare annotation was computed. [2023-12-21 21:29:12,872 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 275) no Hoare annotation was computed. [2023-12-21 21:29:12,872 INFO L899 garLoopResultBuilder]: For program point L333-2(lines 207 539) no Hoare annotation was computed. [2023-12-21 21:29:12,872 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 404) no Hoare annotation was computed. [2023-12-21 21:29:12,872 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 543) no Hoare annotation was computed. [2023-12-21 21:29:12,872 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 554) no Hoare annotation was computed. [2023-12-21 21:29:12,872 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 565) no Hoare annotation was computed. [2023-12-21 21:29:12,873 INFO L895 garLoopResultBuilder]: At program point L103-1(lines 103 606) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|))) (let ((.cse15 (= (_ bv4480 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse14 (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse10 (not (= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| (_ bv4368 32)))) (.cse12 (= (_ bv4464 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse6 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4416 32))) (.cse8 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv3 32))) (.cse17 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4560 32))) (.cse18 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| (_ bv0 32))) (.cse11 (= (_ bv4528 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse19 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4448 32))) (.cse7 (not .cse3)) (.cse13 (= (_ bv4512 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse0 (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse16 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4496 32))) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| (_ bv4560 32))) (.cse2 (= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| (_ bv65535 32))) (.cse9 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse4 (= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| (_ bv61087 32))) (.cse5 (= (_ bv4352 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse3 (= (_ bv3 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse4) (and .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse2 .cse3 .cse11 .cse4) (and .cse3 .cse9 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4400 32))) (and .cse2 .cse3 .cse9 .cse4 .cse12) (and .cse2 .cse13 .cse9 .cse4) (and .cse0 .cse2 .cse3 .cse4 .cse14) (and .cse2 .cse11 .cse9 .cse4) (and .cse2 .cse3 .cse15 .cse9 .cse4) (and .cse0 .cse2 .cse3 .cse15 .cse4) (and .cse1 .cse2 .cse8 .cse9 .cse4) (and .cse2 .cse3 .cse9 .cse4 .cse14) (and .cse2 .cse3 .cse16 .cse9 .cse4) (and .cse7 .cse2 .cse8 .cse4 .cse10) (and .cse7 .cse17 .cse9) (and .cse0 .cse2 .cse3 .cse13 .cse4) (and .cse0 .cse2 .cse3 .cse4 .cse12) (and .cse6 .cse3 .cse9 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4) (and .cse18 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv12292 32))) (and .cse7 (= (_ bv3 32) |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse9 .cse5) (and .cse0 .cse1 .cse2 .cse8 .cse4) (and .cse1 .cse2 .cse17 .cse9 .cse4) (and .cse18 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4368 32))) (and .cse7 .cse11 .cse9) (and .cse2 .cse19 .cse3 .cse9 .cse4) (and (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| (_ bv1 32)) (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4384 32))) (and .cse0 .cse2 .cse19 .cse3 .cse4) (and .cse7 .cse13 .cse9) (and .cse0 .cse2 .cse3 .cse16 .cse4) (and .cse1 .cse2 .cse3 .cse9 .cse4 .cse5)))) [2023-12-21 21:29:12,873 INFO L899 garLoopResultBuilder]: For program point L467(lines 467 473) no Hoare annotation was computed. [2023-12-21 21:29:12,873 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 306) no Hoare annotation was computed. [2023-12-21 21:29:12,873 INFO L899 garLoopResultBuilder]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2023-12-21 21:29:12,873 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 274) no Hoare annotation was computed. [2023-12-21 21:29:12,873 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 242) no Hoare annotation was computed. [2023-12-21 21:29:12,873 INFO L899 garLoopResultBuilder]: For program point L270-2(lines 207 539) no Hoare annotation was computed. [2023-12-21 21:29:12,873 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 553) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 564) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 575) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L437(lines 437 441) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L437-2(lines 207 539) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L372(lines 372 376) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4433#1(lines 145 562) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 411) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L406-2(lines 406 411) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 552) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 563) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 574) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4417#1(lines 139 564) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L607(lines 75 624) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 551) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 562) no Hoare annotation was computed. [2023-12-21 21:29:12,874 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 573) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L377(lines 377 381) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L377-2(lines 377 381) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L311-1(lines 311 325) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L212(lines 109 574) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4481#1(lines 169 554) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 604) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4513#1(lines 181 550) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L577(lines 577 601) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 207 539) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L346(lines 346 351) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 550) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 561) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 572) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_ERROR#1(lines 75 624) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L611(lines 611 615) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 587) no Hoare annotation was computed. [2023-12-21 21:29:12,875 INFO L899 garLoopResultBuilder]: For program point L611-2(lines 611 615) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L578-2(lines 577 599) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 91) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 319) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L315-2(lines 313 325) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4449#1(lines 151 560) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L580(lines 580 584) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 453) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 287) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 221) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 549) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 560) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L217-2(lines 207 539) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 571) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4497#1(lines 175 552) no Hoare annotation was computed. [2023-12-21 21:29:12,876 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 486) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L86-2(lines 83 91) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4561#1(lines 193 546) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L516-1(lines 516 520) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 421) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L253(lines 253 258) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 548) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 559) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 570) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point $Ultimate##177(lines 495 507) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4529#1(lines 187 548) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point $Ultimate##182(lines 511 515) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L487(lines 487 491) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L487-2(lines 487 491) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 21:29:12,877 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 547) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 558) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 569) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4385#1(lines 127 568) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point $Ultimate##194(lines 576 604) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L389(lines 389 393) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 360) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 101) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4369#1(lines 121 570) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L622(lines 75 624) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 595) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L523-2(lines 523 527) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L292(lines 292 296) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L292-2(lines 207 539) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 546) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 557) no Hoare annotation was computed. [2023-12-21 21:29:12,878 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 568) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 98) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point ssl3_connect_switch_1_4467#1(lines 157 558) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 462) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 365) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 246) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 545) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 556) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point L229-2(lines 207 539) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 567) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 618) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point L495-1(lines 495 507) no Hoare annotation was computed. [2023-12-21 21:29:12,879 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 433) no Hoare annotation was computed. [2023-12-21 21:29:12,880 INFO L899 garLoopResultBuilder]: For program point L231(lines 231 236) no Hoare annotation was computed. [2023-12-21 21:29:12,880 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 544) no Hoare annotation was computed. [2023-12-21 21:29:12,880 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 555) no Hoare annotation was computed. [2023-12-21 21:29:12,880 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 566) no Hoare annotation was computed. [2023-12-21 21:29:12,880 INFO L899 garLoopResultBuilder]: For program point L530(lines 530 534) no Hoare annotation was computed. [2023-12-21 21:29:12,880 INFO L899 garLoopResultBuilder]: For program point $Ultimate##122(lines 311 325) no Hoare annotation was computed. [2023-12-21 21:29:12,883 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-21 21:29:12,884 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 21:29:12,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 09:29:12 BoogieIcfgContainer [2023-12-21 21:29:12,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 21:29:12,898 INFO L158 Benchmark]: Toolchain (without parser) took 16084.59ms. Allocated memory was 303.0MB in the beginning and 461.4MB in the end (delta: 158.3MB). Free memory was 245.4MB in the beginning and 224.5MB in the end (delta: 20.9MB). Peak memory consumption was 254.4MB. Max. memory is 8.0GB. [2023-12-21 21:29:12,898 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 200.3MB. Free memory is still 151.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 21:29:12,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.98ms. Allocated memory is still 303.0MB. Free memory was 245.1MB in the beginning and 229.3MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 21:29:12,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.28ms. Allocated memory is still 303.0MB. Free memory was 229.0MB in the beginning and 226.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 21:29:12,899 INFO L158 Benchmark]: Boogie Preprocessor took 45.38ms. Allocated memory is still 303.0MB. Free memory was 226.6MB in the beginning and 223.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 21:29:12,899 INFO L158 Benchmark]: RCFGBuilder took 680.43ms. Allocated memory is still 303.0MB. Free memory was 223.4MB in the beginning and 246.6MB in the end (delta: -23.1MB). Peak memory consumption was 17.9MB. Max. memory is 8.0GB. [2023-12-21 21:29:12,899 INFO L158 Benchmark]: TraceAbstraction took 14988.92ms. Allocated memory was 303.0MB in the beginning and 461.4MB in the end (delta: 158.3MB). Free memory was 245.5MB in the beginning and 224.5MB in the end (delta: 21.0MB). Peak memory consumption was 253.3MB. Max. memory is 8.0GB. [2023-12-21 21:29:12,900 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 200.3MB. Free memory is still 151.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 320.98ms. Allocated memory is still 303.0MB. Free memory was 245.1MB in the beginning and 229.3MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.28ms. Allocated memory is still 303.0MB. Free memory was 229.0MB in the beginning and 226.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.38ms. Allocated memory is still 303.0MB. Free memory was 226.6MB in the beginning and 223.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 680.43ms. Allocated memory is still 303.0MB. Free memory was 223.4MB in the beginning and 246.6MB in the end (delta: -23.1MB). Peak memory consumption was 17.9MB. Max. memory is 8.0GB. * TraceAbstraction took 14988.92ms. Allocated memory was 303.0MB in the beginning and 461.4MB in the end (delta: 158.3MB). Free memory was 245.5MB in the beginning and 224.5MB in the end (delta: 21.0MB). Peak memory consumption was 253.3MB. 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: 618]: 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, 118 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.9s, OverallIterations: 25, TraceHistogramMax: 22, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1939 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1939 mSDsluCounter, 8134 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3418 mSDsCounter, 432 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3191 IncrementalHoareTripleChecker+Invalid, 3623 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 432 mSolverCounterUnsat, 4716 mSDtfsCounter, 3191 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5996 GetRequests, 5951 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5805occurred in iteration=22, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 25 MinimizatonAttempts, 2178 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 52 NumberOfFragments, 461 HoareAnnotationTreeSize, 1 FormulaSimplifications, 536 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 1 FormulaSimplificationsInter, 989 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 4891 NumberOfCodeBlocks, 4891 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 5978 ConstructedInterpolants, 0 QuantifiedInterpolants, 7933 SizeOfPredicates, 4 NumberOfNonLiveVariables, 6025 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 28 InterpolantComputations, 22 PerfectInterpolantSequences, 24366/24461 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: 103]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((4 == blastFlag) && (s__s3__tmp__next_state___0 == 4560)) && (ag_X == 65535)) && (0 == s__hit)) && (ag_Y == 61087)) && (4352 == s__state)) || ((((s__state == 4416) && (0 == s__hit)) && (3 == blastFlag)) && (ag_Y == 61087))) || (((!((0 == s__hit)) && (s__state == 3)) && (2 == blastFlag)) && !((s__s3__tmp__next_state___0 == 4368)))) || (((((4 == blastFlag) && (ag_X == 65535)) && (0 == s__hit)) && (4528 == s__state)) && (ag_Y == 61087))) || (((0 == s__hit) && (2 == blastFlag)) && (s__state == 4400))) || (((((ag_X == 65535) && (0 == s__hit)) && (2 == blastFlag)) && (ag_Y == 61087)) && (4464 == s__state))) || ((((ag_X == 65535) && (4512 == s__state)) && (2 == blastFlag)) && (ag_Y == 61087))) || (((((4 == blastFlag) && (ag_X == 65535)) && (0 == s__hit)) && (ag_Y == 61087)) && (4432 == s__state))) || ((((ag_X == 65535) && (4528 == s__state)) && (2 == blastFlag)) && (ag_Y == 61087))) || (((((ag_X == 65535) && (0 == s__hit)) && (4480 == s__state)) && (2 == blastFlag)) && (ag_Y == 61087))) || (((((4 == blastFlag) && (ag_X == 65535)) && (0 == s__hit)) && (4480 == s__state)) && (ag_Y == 61087))) || (((((s__s3__tmp__next_state___0 == 4560) && (ag_X == 65535)) && (s__state == 3)) && (2 == blastFlag)) && (ag_Y == 61087))) || (((((ag_X == 65535) && (0 == s__hit)) && (2 == blastFlag)) && (ag_Y == 61087)) && (4432 == s__state))) || (((((ag_X == 65535) && (0 == s__hit)) && (s__state == 4496)) && (2 == blastFlag)) && (ag_Y == 61087))) || ((((!((0 == s__hit)) && (ag_X == 65535)) && (s__state == 3)) && (ag_Y == 61087)) && !((s__s3__tmp__next_state___0 == 4368)))) || ((!((0 == s__hit)) && (s__state == 4560)) && (2 == blastFlag))) || (((((4 == blastFlag) && (ag_X == 65535)) && (0 == s__hit)) && (4512 == s__state)) && (ag_Y == 61087))) || (((((4 == blastFlag) && (ag_X == 65535)) && (0 == s__hit)) && (ag_Y == 61087)) && (4464 == s__state))) || ((((s__state == 4416) && (0 == s__hit)) && (2 == blastFlag)) && (ag_Y == 61087))) || ((((((4 == blastFlag) && (s__s3__tmp__next_state___0 == 4560)) && (ag_X == 65535)) && (0 == s__hit)) && (s__state == 4560)) && (ag_Y == 61087))) || ((blastFlag == 0) && (s__state == 12292))) || (((!((0 == s__hit)) && (3 == s__s3__tmp__next_state___0)) && (2 == blastFlag)) && (4352 == s__state))) || (((((4 == blastFlag) && (s__s3__tmp__next_state___0 == 4560)) && (ag_X == 65535)) && (s__state == 3)) && (ag_Y == 61087))) || (((((s__s3__tmp__next_state___0 == 4560) && (ag_X == 65535)) && (s__state == 4560)) && (2 == blastFlag)) && (ag_Y == 61087))) || ((blastFlag == 0) && (s__state == 4368))) || ((!((0 == s__hit)) && (4528 == s__state)) && (2 == blastFlag))) || (((((ag_X == 65535) && (s__state == 4448)) && (0 == s__hit)) && (2 == blastFlag)) && (ag_Y == 61087))) || ((blastFlag == 1) && (s__state == 4384))) || (((((4 == blastFlag) && (ag_X == 65535)) && (s__state == 4448)) && (0 == s__hit)) && (ag_Y == 61087))) || ((!((0 == s__hit)) && (4512 == s__state)) && (2 == blastFlag))) || (((((4 == blastFlag) && (ag_X == 65535)) && (0 == s__hit)) && (s__state == 4496)) && (ag_Y == 61087))) || ((((((s__s3__tmp__next_state___0 == 4560) && (ag_X == 65535)) && (0 == s__hit)) && (2 == blastFlag)) && (ag_Y == 61087)) && (4352 == s__state))) RESULT: Ultimate proved your program to be correct! [2023-12-21 21:29:12,914 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...