/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/eca-rers2012/Problem02_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:24:14,356 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:24:14,424 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 08:24:14,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:24:14,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:24:14,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:24:14,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:24:14,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:24:14,452 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:24:14,454 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:24:14,454 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:24:14,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:24:14,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:24:14,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:24:14,456 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:24:14,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:24:14,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:24:14,457 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:24:14,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:24:14,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:24:14,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:24:14,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:24:14,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:24:14,458 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:24:14,458 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:24:14,458 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:24:14,459 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:24:14,459 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:24:14,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:24:14,459 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:24:14,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:24:14,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:24:14,460 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:24:14,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:24:14,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:24:14,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:24:14,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:24:14,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:24:14,460 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:24:14,461 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:24:14,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:24:14,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:24:14,461 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:24:14,461 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:24:14,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:24:14,461 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:24:14,461 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:24:14,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:24:14,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:24:14,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:24:14,654 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:24:14,654 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:24:14,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label22.c [2023-12-16 08:24:15,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:24:15,852 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:24:15,853 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label22.c [2023-12-16 08:24:15,874 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f2f2c83/74595618ab6f4ef2984f77e7c11473cb/FLAG1e7887a78 [2023-12-16 08:24:15,883 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f2f2c83/74595618ab6f4ef2984f77e7c11473cb [2023-12-16 08:24:15,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:24:15,886 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:24:15,887 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:24:15,887 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:24:15,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:24:15,890 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:24:15" (1/1) ... [2023-12-16 08:24:15,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ac596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:15, skipping insertion in model container [2023-12-16 08:24:15,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:24:15" (1/1) ... [2023-12-16 08:24:15,929 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:24:16,120 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label22.c[16445,16458] [2023-12-16 08:24:16,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:24:16,176 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:24:16,244 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label22.c[16445,16458] [2023-12-16 08:24:16,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:24:16,281 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:24:16,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16 WrapperNode [2023-12-16 08:24:16,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:24:16,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:24:16,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:24:16,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:24:16,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,363 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 667 [2023-12-16 08:24:16,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:24:16,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:24:16,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:24:16,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:24:16,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,376 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,401 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 08:24:16,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,422 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:24:16,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:24:16,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:24:16,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:24:16,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (1/1) ... [2023-12-16 08:24:16,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:24:16,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:24:16,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 08:24:16,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 08:24:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:24:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:24:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:24:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:24:16,567 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:24:16,569 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:24:17,427 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:24:17,479 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:24:17,479 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 08:24:17,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:24:17 BoogieIcfgContainer [2023-12-16 08:24:17,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:24:17,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:24:17,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:24:17,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:24:17,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:24:15" (1/3) ... [2023-12-16 08:24:17,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40edf202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:24:17, skipping insertion in model container [2023-12-16 08:24:17,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:24:16" (2/3) ... [2023-12-16 08:24:17,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40edf202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:24:17, skipping insertion in model container [2023-12-16 08:24:17,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:24:17" (3/3) ... [2023-12-16 08:24:17,486 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label22.c [2023-12-16 08:24:17,498 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:24:17,498 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 08:24:17,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:24:17,544 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;@7b4f5298, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:24:17,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 08:24:17,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:17,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 08:24:17,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:17,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:17,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:17,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:17,571 INFO L85 PathProgramCache]: Analyzing trace with hash 240932790, now seen corresponding path program 1 times [2023-12-16 08:24:17,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:17,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758867658] [2023-12-16 08:24:17,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:17,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:17,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:17,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:17,610 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 (2)] Waiting until timeout for monitored process [2023-12-16 08:24:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:17,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 08:24:17,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:17,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:24:17,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:17,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:17,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758867658] [2023-12-16 08:24:17,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758867658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:17,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:17,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:24:17,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900251122] [2023-12-16 08:24:17,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:17,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 08:24:17,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:17,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 08:24:17,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:24:17,770 INFO L87 Difference]: Start difference. First operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:17,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:17,807 INFO L93 Difference]: Finished difference Result 329 states and 625 transitions. [2023-12-16 08:24:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 08:24:17,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-16 08:24:17,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:17,821 INFO L225 Difference]: With dead ends: 329 [2023-12-16 08:24:17,821 INFO L226 Difference]: Without dead ends: 163 [2023-12-16 08:24:17,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:24:17,827 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:17,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:24:17,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-16 08:24:17,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-12-16 08:24:17,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5308641975308641) internal successors, (248), 162 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:17,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 248 transitions. [2023-12-16 08:24:17,860 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 248 transitions. Word has length 96 [2023-12-16 08:24:17,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:17,860 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 248 transitions. [2023-12-16 08:24:17,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:17,861 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 248 transitions. [2023-12-16 08:24:17,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 08:24:17,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:17,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:17,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 08:24:18,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:18,068 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:18,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:18,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1525756910, now seen corresponding path program 1 times [2023-12-16 08:24:18,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:18,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386098626] [2023-12-16 08:24:18,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:18,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:18,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:18,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:18,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:24:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:18,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 08:24:18,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:20,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:24:20,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:20,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:20,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386098626] [2023-12-16 08:24:20,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386098626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:20,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:20,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 08:24:20,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559071088] [2023-12-16 08:24:20,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:20,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 08:24:20,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:20,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 08:24:20,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:24:20,885 INFO L87 Difference]: Start difference. First operand 163 states and 248 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:22,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:22,285 INFO L93 Difference]: Finished difference Result 667 states and 1040 transitions. [2023-12-16 08:24:22,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 08:24:22,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-16 08:24:22,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:22,289 INFO L225 Difference]: With dead ends: 667 [2023-12-16 08:24:22,289 INFO L226 Difference]: Without dead ends: 505 [2023-12-16 08:24:22,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2023-12-16 08:24:22,290 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 388 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:22,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 172 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 08:24:22,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-12-16 08:24:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 504. [2023-12-16 08:24:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 503 states have (on average 1.2504970178926442) internal successors, (629), 503 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 629 transitions. [2023-12-16 08:24:22,319 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 629 transitions. Word has length 96 [2023-12-16 08:24:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:22,319 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 629 transitions. [2023-12-16 08:24:22,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:22,324 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 629 transitions. [2023-12-16 08:24:22,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:24:22,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:22,330 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:22,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 08:24:22,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:22,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:22,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:22,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1440100729, now seen corresponding path program 1 times [2023-12-16 08:24:22,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:22,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940332800] [2023-12-16 08:24:22,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:22,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:22,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:22,538 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:22,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 08:24:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:22,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 08:24:22,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:24:23,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:23,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:23,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940332800] [2023-12-16 08:24:23,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940332800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:23,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:23,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 08:24:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984178755] [2023-12-16 08:24:23,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:23,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 08:24:23,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:23,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 08:24:23,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:24:23,715 INFO L87 Difference]: Start difference. First operand 504 states and 629 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:24,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:24,514 INFO L93 Difference]: Finished difference Result 1369 states and 1784 transitions. [2023-12-16 08:24:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 08:24:24,514 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2023-12-16 08:24:24,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:24,517 INFO L225 Difference]: With dead ends: 1369 [2023-12-16 08:24:24,517 INFO L226 Difference]: Without dead ends: 800 [2023-12-16 08:24:24,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:24:24,519 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 197 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:24,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 109 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:24:24,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2023-12-16 08:24:24,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 798. [2023-12-16 08:24:24,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.248431618569636) internal successors, (995), 797 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) [2023-12-16 08:24:24,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 995 transitions. [2023-12-16 08:24:24,545 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 995 transitions. Word has length 101 [2023-12-16 08:24:24,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:24,545 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 995 transitions. [2023-12-16 08:24:24,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:24,545 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 995 transitions. [2023-12-16 08:24:24,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 08:24:24,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:24,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:24,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 08:24:24,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:24,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:24,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:24,751 INFO L85 PathProgramCache]: Analyzing trace with hash 830999107, now seen corresponding path program 1 times [2023-12-16 08:24:24,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:24,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054164442] [2023-12-16 08:24:24,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:24,752 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:24,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:24,753 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:24,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 08:24:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:24,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 08:24:24,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:26,346 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:24:26,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:26,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:26,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054164442] [2023-12-16 08:24:26,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054164442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:26,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:26,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 08:24:26,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567339428] [2023-12-16 08:24:26,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:26,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 08:24:26,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:26,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 08:24:26,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:24:26,348 INFO L87 Difference]: Start difference. First operand 798 states and 995 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:27,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:27,075 INFO L93 Difference]: Finished difference Result 1676 states and 2115 transitions. [2023-12-16 08:24:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 08:24:27,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2023-12-16 08:24:27,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:27,078 INFO L225 Difference]: With dead ends: 1676 [2023-12-16 08:24:27,078 INFO L226 Difference]: Without dead ends: 879 [2023-12-16 08:24:27,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:24:27,080 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 184 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:27,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 160 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 08:24:27,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2023-12-16 08:24:27,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 875. [2023-12-16 08:24:27,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 874 states have (on average 1.22883295194508) internal successors, (1074), 874 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:27,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1074 transitions. [2023-12-16 08:24:27,092 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1074 transitions. Word has length 105 [2023-12-16 08:24:27,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:27,092 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1074 transitions. [2023-12-16 08:24:27,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:27,092 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1074 transitions. [2023-12-16 08:24:27,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-16 08:24:27,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:27,094 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:27,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 08:24:27,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:27,296 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:27,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:27,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1897335322, now seen corresponding path program 1 times [2023-12-16 08:24:27,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:27,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537886472] [2023-12-16 08:24:27,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:27,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:27,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:27,303 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:27,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 08:24:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:27,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:24:27,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:24:27,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:27,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:27,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537886472] [2023-12-16 08:24:27,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537886472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:27,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:27,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:24:27,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550233168] [2023-12-16 08:24:27,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:27,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:24:27,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:27,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:24:27,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:27,371 INFO L87 Difference]: Start difference. First operand 875 states and 1074 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 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) [2023-12-16 08:24:27,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:27,764 INFO L93 Difference]: Finished difference Result 2169 states and 2619 transitions. [2023-12-16 08:24:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:24:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 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 113 [2023-12-16 08:24:27,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:27,766 INFO L225 Difference]: With dead ends: 2169 [2023-12-16 08:24:27,766 INFO L226 Difference]: Without dead ends: 873 [2023-12-16 08:24:27,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:27,768 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 189 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:27,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 76 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:24:27,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-16 08:24:27,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2023-12-16 08:24:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 872 states have (on average 1.165137614678899) internal successors, (1016), 872 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1016 transitions. [2023-12-16 08:24:27,778 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1016 transitions. Word has length 113 [2023-12-16 08:24:27,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:27,778 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1016 transitions. [2023-12-16 08:24:27,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 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) [2023-12-16 08:24:27,779 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1016 transitions. [2023-12-16 08:24:27,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 08:24:27,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:27,780 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:27,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 08:24:27,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:27,980 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:27,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash 732494863, now seen corresponding path program 1 times [2023-12-16 08:24:27,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:27,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949672358] [2023-12-16 08:24:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:27,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:27,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:27,982 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:27,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 08:24:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:28,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 08:24:28,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:29,460 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:24:29,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:29,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:29,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949672358] [2023-12-16 08:24:29,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949672358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:29,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:29,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 08:24:29,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113919887] [2023-12-16 08:24:29,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:29,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 08:24:29,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:29,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 08:24:29,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:24:29,462 INFO L87 Difference]: Start difference. First operand 873 states and 1016 transitions. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:30,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:30,130 INFO L93 Difference]: Finished difference Result 1828 states and 2137 transitions. [2023-12-16 08:24:30,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 08:24:30,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2023-12-16 08:24:30,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:30,135 INFO L225 Difference]: With dead ends: 1828 [2023-12-16 08:24:30,135 INFO L226 Difference]: Without dead ends: 946 [2023-12-16 08:24:30,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:24:30,140 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 168 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:30,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 225 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:24:30,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2023-12-16 08:24:30,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 943. [2023-12-16 08:24:30,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 942 states have (on average 1.1549893842887473) internal successors, (1088), 942 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:30,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1088 transitions. [2023-12-16 08:24:30,155 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1088 transitions. Word has length 126 [2023-12-16 08:24:30,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:30,156 INFO L495 AbstractCegarLoop]: Abstraction has 943 states and 1088 transitions. [2023-12-16 08:24:30,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:30,156 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1088 transitions. [2023-12-16 08:24:30,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 08:24:30,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:30,157 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:30,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 08:24:30,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:30,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:30,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:30,359 INFO L85 PathProgramCache]: Analyzing trace with hash -943055986, now seen corresponding path program 1 times [2023-12-16 08:24:30,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:30,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101585604] [2023-12-16 08:24:30,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:30,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:30,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:30,362 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:30,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 08:24:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:30,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:24:30,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 08:24:30,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:30,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:30,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101585604] [2023-12-16 08:24:30,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101585604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:30,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:30,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:24:30,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613804828] [2023-12-16 08:24:30,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:30,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:24:30,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:30,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:24:30,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:30,431 INFO L87 Difference]: Start difference. First operand 943 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:30,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:30,829 INFO L93 Difference]: Finished difference Result 1729 states and 2009 transitions. [2023-12-16 08:24:30,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:24:30,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 130 [2023-12-16 08:24:30,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:30,831 INFO L225 Difference]: With dead ends: 1729 [2023-12-16 08:24:30,831 INFO L226 Difference]: Without dead ends: 619 [2023-12-16 08:24:30,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:30,833 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 149 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:30,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 173 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:24:30,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2023-12-16 08:24:30,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2023-12-16 08:24:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 618 states have (on average 1.1051779935275081) internal successors, (683), 618 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 683 transitions. [2023-12-16 08:24:30,841 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 683 transitions. Word has length 130 [2023-12-16 08:24:30,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:30,842 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 683 transitions. [2023-12-16 08:24:30,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:30,842 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 683 transitions. [2023-12-16 08:24:30,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 08:24:30,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:30,843 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:30,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 08:24:31,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:31,045 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:31,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:31,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1267551606, now seen corresponding path program 1 times [2023-12-16 08:24:31,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:31,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517418796] [2023-12-16 08:24:31,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:31,047 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 [2023-12-16 08:24:31,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:31,047 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:31,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 08:24:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:31,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:24:31,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:31,126 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-16 08:24:31,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:31,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:31,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517418796] [2023-12-16 08:24:31,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517418796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:31,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:31,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:24:31,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453494338] [2023-12-16 08:24:31,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:31,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:24:31,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:31,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:24:31,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:31,128 INFO L87 Difference]: Start difference. First operand 619 states and 683 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:31,490 INFO L93 Difference]: Finished difference Result 1658 states and 1841 transitions. [2023-12-16 08:24:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:24:31,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 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 141 [2023-12-16 08:24:31,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:31,492 INFO L225 Difference]: With dead ends: 1658 [2023-12-16 08:24:31,493 INFO L226 Difference]: Without dead ends: 1040 [2023-12-16 08:24:31,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:31,494 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:31,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 163 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:24:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2023-12-16 08:24:31,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1039. [2023-12-16 08:24:31,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1038 states have (on average 1.079961464354528) internal successors, (1121), 1038 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1121 transitions. [2023-12-16 08:24:31,506 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1121 transitions. Word has length 141 [2023-12-16 08:24:31,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:31,507 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1121 transitions. [2023-12-16 08:24:31,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1121 transitions. [2023-12-16 08:24:31,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 08:24:31,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:31,508 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:31,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 08:24:31,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:31,711 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:31,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:31,711 INFO L85 PathProgramCache]: Analyzing trace with hash -958131716, now seen corresponding path program 1 times [2023-12-16 08:24:31,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:31,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717927066] [2023-12-16 08:24:31,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:31,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:31,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:31,713 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:31,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 08:24:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:31,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:24:31,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:31,819 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 08:24:31,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:31,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:31,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717927066] [2023-12-16 08:24:31,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717927066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:31,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:31,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:24:31,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098168243] [2023-12-16 08:24:31,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:31,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:24:31,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:31,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:24:31,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:31,820 INFO L87 Difference]: Start difference. First operand 1039 states and 1121 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:32,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:32,162 INFO L93 Difference]: Finished difference Result 2496 states and 2702 transitions. [2023-12-16 08:24:32,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:24:32,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 147 [2023-12-16 08:24:32,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:32,164 INFO L225 Difference]: With dead ends: 2496 [2023-12-16 08:24:32,165 INFO L226 Difference]: Without dead ends: 1056 [2023-12-16 08:24:32,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:32,166 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 160 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:32,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 51 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:24:32,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2023-12-16 08:24:32,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 916. [2023-12-16 08:24:32,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 915 states have (on average 1.0743169398907104) internal successors, (983), 915 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:32,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 983 transitions. [2023-12-16 08:24:32,176 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 983 transitions. Word has length 147 [2023-12-16 08:24:32,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:32,176 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 983 transitions. [2023-12-16 08:24:32,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:32,176 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 983 transitions. [2023-12-16 08:24:32,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-16 08:24:32,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:32,178 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 08:24:32,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 08:24:32,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:32,380 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:32,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:32,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1759567425, now seen corresponding path program 1 times [2023-12-16 08:24:32,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:32,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800077310] [2023-12-16 08:24:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:32,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:32,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:32,383 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:32,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 08:24:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:32,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:24:32,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 08:24:32,477 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:32,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800077310] [2023-12-16 08:24:32,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800077310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:32,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:32,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:24:32,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358453614] [2023-12-16 08:24:32,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:32,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:24:32,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:32,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:24:32,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:32,478 INFO L87 Difference]: Start difference. First operand 916 states and 983 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:32,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:32,802 INFO L93 Difference]: Finished difference Result 2538 states and 2734 transitions. [2023-12-16 08:24:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:24:32,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2023-12-16 08:24:32,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:32,805 INFO L225 Difference]: With dead ends: 2538 [2023-12-16 08:24:32,805 INFO L226 Difference]: Without dead ends: 1479 [2023-12-16 08:24:32,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:32,807 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 129 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:32,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 216 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:24:32,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2023-12-16 08:24:32,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1336. [2023-12-16 08:24:32,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 1.0651685393258428) internal successors, (1422), 1335 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:32,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1422 transitions. [2023-12-16 08:24:32,820 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1422 transitions. Word has length 191 [2023-12-16 08:24:32,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:32,821 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 1422 transitions. [2023-12-16 08:24:32,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:32,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1422 transitions. [2023-12-16 08:24:32,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-16 08:24:32,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:32,824 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:32,830 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 [2023-12-16 08:24:33,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:33,031 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:33,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:33,031 INFO L85 PathProgramCache]: Analyzing trace with hash -255993420, now seen corresponding path program 1 times [2023-12-16 08:24:33,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:33,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619979408] [2023-12-16 08:24:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:33,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:33,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:33,034 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:24:33,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 08:24:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:33,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:24:33,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 08:24:33,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:33,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:33,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619979408] [2023-12-16 08:24:33,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619979408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:33,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:33,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:24:33,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500641747] [2023-12-16 08:24:33,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:33,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:24:33,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:33,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:24:33,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:24:33,310 INFO L87 Difference]: Start difference. First operand 1336 states and 1422 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:33,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:33,793 INFO L93 Difference]: Finished difference Result 2814 states and 2999 transitions. [2023-12-16 08:24:33,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:24:33,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 285 [2023-12-16 08:24:33,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:33,796 INFO L225 Difference]: With dead ends: 2814 [2023-12-16 08:24:33,796 INFO L226 Difference]: Without dead ends: 1186 [2023-12-16 08:24:33,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:24:33,798 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 206 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:33,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 238 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:24:33,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2023-12-16 08:24:33,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1183. [2023-12-16 08:24:33,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.0456852791878173) internal successors, (1236), 1182 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:33,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1236 transitions. [2023-12-16 08:24:33,809 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1236 transitions. Word has length 285 [2023-12-16 08:24:33,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:33,809 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1236 transitions. [2023-12-16 08:24:33,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:33,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1236 transitions. [2023-12-16 08:24:33,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2023-12-16 08:24:33,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:33,812 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:33,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 08:24:34,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:34,014 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:34,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:34,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1784947273, now seen corresponding path program 1 times [2023-12-16 08:24:34,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:34,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626165299] [2023-12-16 08:24:34,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:34,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:34,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:34,017 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) [2023-12-16 08:24:34,017 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 [2023-12-16 08:24:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:34,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 08:24:34,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 55 proven. 305 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-12-16 08:24:35,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 08:24:37,827 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 55 proven. 305 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-12-16 08:24:37,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:37,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626165299] [2023-12-16 08:24:37,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626165299] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 08:24:37,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 08:24:37,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-16 08:24:37,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943576597] [2023-12-16 08:24:37,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 08:24:37,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 08:24:37,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:37,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 08:24:37,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2023-12-16 08:24:37,829 INFO L87 Difference]: Start difference. First operand 1183 states and 1236 transitions. Second operand has 17 states, 17 states have (on average 18.0) internal successors, (306), 16 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:39,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:39,955 INFO L93 Difference]: Finished difference Result 3433 states and 3592 transitions. [2023-12-16 08:24:39,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 08:24:39,956 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 18.0) internal successors, (306), 16 states have internal predecessors, (306), 0 states have call successors, (0), 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 320 [2023-12-16 08:24:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:39,959 INFO L225 Difference]: With dead ends: 3433 [2023-12-16 08:24:39,960 INFO L226 Difference]: Without dead ends: 1813 [2023-12-16 08:24:39,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=212, Invalid=438, Unknown=0, NotChecked=0, Total=650 [2023-12-16 08:24:39,961 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 894 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:39,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 126 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 08:24:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2023-12-16 08:24:39,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1204. [2023-12-16 08:24:39,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 1203 states have (on average 1.0448877805486285) internal successors, (1257), 1203 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:39,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1257 transitions. [2023-12-16 08:24:39,973 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1257 transitions. Word has length 320 [2023-12-16 08:24:39,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:39,973 INFO L495 AbstractCegarLoop]: Abstraction has 1204 states and 1257 transitions. [2023-12-16 08:24:39,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 18.0) internal successors, (306), 16 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:39,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1257 transitions. [2023-12-16 08:24:39,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-12-16 08:24:39,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:39,976 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 08:24:39,990 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 [2023-12-16 08:24:40,178 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 [2023-12-16 08:24:40,178 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:40,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:40,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1973761841, now seen corresponding path program 1 times [2023-12-16 08:24:40,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:40,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433660628] [2023-12-16 08:24:40,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:40,180 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:40,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:40,181 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) [2023-12-16 08:24:40,181 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 [2023-12-16 08:24:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:40,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:24:40,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:40,431 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-16 08:24:40,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:40,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:40,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433660628] [2023-12-16 08:24:40,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433660628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:40,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:40,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:24:40,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436673127] [2023-12-16 08:24:40,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:40,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:24:40,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:40,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:24:40,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:40,433 INFO L87 Difference]: Start difference. First operand 1204 states and 1257 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:40,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:40,716 INFO L93 Difference]: Finished difference Result 2547 states and 2662 transitions. [2023-12-16 08:24:40,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:24:40,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 337 [2023-12-16 08:24:40,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:40,720 INFO L225 Difference]: With dead ends: 2547 [2023-12-16 08:24:40,720 INFO L226 Difference]: Without dead ends: 1344 [2023-12-16 08:24:40,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:40,721 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 77 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:40,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 192 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:24:40,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2023-12-16 08:24:40,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1344. [2023-12-16 08:24:40,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1343 states have (on average 1.0416976917349219) internal successors, (1399), 1343 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:40,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1399 transitions. [2023-12-16 08:24:40,733 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1399 transitions. Word has length 337 [2023-12-16 08:24:40,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:40,733 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1399 transitions. [2023-12-16 08:24:40,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:40,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1399 transitions. [2023-12-16 08:24:40,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2023-12-16 08:24:40,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:24:40,735 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:40,738 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 [2023-12-16 08:24:40,938 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 [2023-12-16 08:24:40,938 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:24:40,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:24:40,939 INFO L85 PathProgramCache]: Analyzing trace with hash -387824649, now seen corresponding path program 1 times [2023-12-16 08:24:40,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:24:40,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85343050] [2023-12-16 08:24:40,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:24:40,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:24:40,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:24:40,941 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) [2023-12-16 08:24:40,942 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 [2023-12-16 08:24:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:24:41,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:24:41,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:24:41,081 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 483 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-12-16 08:24:41,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:24:41,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:24:41,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85343050] [2023-12-16 08:24:41,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85343050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:24:41,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:24:41,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:24:41,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761575029] [2023-12-16 08:24:41,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:24:41,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:24:41,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:24:41,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:24:41,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:41,083 INFO L87 Difference]: Start difference. First operand 1344 states and 1399 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:41,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:24:41,337 INFO L93 Difference]: Finished difference Result 1834 states and 1901 transitions. [2023-12-16 08:24:41,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:24:41,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 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 361 [2023-12-16 08:24:41,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:24:41,337 INFO L225 Difference]: With dead ends: 1834 [2023-12-16 08:24:41,337 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 08:24:41,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:24:41,339 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 122 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:24:41,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 162 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:24:41,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 08:24:41,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 08:24:41,339 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) [2023-12-16 08:24:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 08:24:41,339 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 361 [2023-12-16 08:24:41,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:24:41,339 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 08:24:41,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:24:41,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 08:24:41,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 08:24:41,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 08:24:41,350 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 [2023-12-16 08:24:41,545 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 [2023-12-16 08:24:41,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 08:24:41,754 INFO L899 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,754 INFO L899 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,755 INFO L899 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,755 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2023-12-16 08:24:41,755 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2023-12-16 08:24:41,755 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2023-12-16 08:24:41,755 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2023-12-16 08:24:41,756 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2023-12-16 08:24:41,757 INFO L899 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,758 INFO L899 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 473) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2023-12-16 08:24:41,760 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2023-12-16 08:24:41,761 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2023-12-16 08:24:41,761 INFO L899 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,761 INFO L899 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,762 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,763 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2023-12-16 08:24:41,764 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2023-12-16 08:24:41,765 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2023-12-16 08:24:41,765 INFO L899 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2023-12-16 08:24:41,765 INFO L899 garLoopResultBuilder]: For program point L610(lines 610 627) no Hoare annotation was computed. [2023-12-16 08:24:41,765 INFO L899 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,765 INFO L899 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,765 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2023-12-16 08:24:41,765 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2023-12-16 08:24:41,765 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2023-12-16 08:24:41,765 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2023-12-16 08:24:41,766 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2023-12-16 08:24:41,766 INFO L899 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2023-12-16 08:24:41,766 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2023-12-16 08:24:41,766 INFO L899 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,766 INFO L899 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,766 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2023-12-16 08:24:41,766 INFO L899 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2023-12-16 08:24:41,766 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2023-12-16 08:24:41,766 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse5 (= (_ bv1 32) ~a19~0))) (let ((.cse7 (not .cse5)) (.cse6 (not (= (_ bv1 32) ~a21~0)))) (let ((.cse8 (= (_ bv7 32) ~a28~0)) (.cse1 (= (_ bv10 32) ~a28~0)) (.cse9 (= (_ bv8 32) ~a28~0)) (.cse10 (= (_ bv0 32) ~a25~0)) (.cse2 (= (_ bv0 32) ~a11~0)) (.cse11 (or .cse7 .cse6)) (.cse3 (= (_ bv8 32) ~a17~0)) (.cse4 (= (_ bv1 32) ~a11~0)) (.cse0 (= (_ bv1 32) ~a25~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse3) (and .cse5 .cse6) (and .cse0 .cse5 .cse2) (and .cse7 (or .cse8 (and .cse0 .cse9)) .cse2 .cse3) (and .cse5 .cse2 (= ~a28~0 (_ bv9 32)) .cse3) (and .cse8 .cse10 .cse2 .cse3) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse11) (and .cse9 .cse10 .cse2 .cse11 .cse3) (and (= (_ bv7 32) ~a17~0) .cse4 .cse0))))) [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2023-12-16 08:24:41,768 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2023-12-16 08:24:41,769 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2023-12-16 08:24:41,771 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:24:41,773 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:24:41,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:24:41 BoogieIcfgContainer [2023-12-16 08:24:41,780 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:24:41,781 INFO L158 Benchmark]: Toolchain (without parser) took 25894.81ms. Allocated memory was 221.2MB in the beginning and 789.6MB in the end (delta: 568.3MB). Free memory was 180.6MB in the beginning and 713.8MB in the end (delta: -533.2MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. [2023-12-16 08:24:41,781 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 221.2MB. Free memory is still 178.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:24:41,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.86ms. Allocated memory is still 221.2MB. Free memory was 180.6MB in the beginning and 151.7MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 08:24:41,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.06ms. Allocated memory is still 221.2MB. Free memory was 151.7MB in the beginning and 146.0MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 08:24:41,781 INFO L158 Benchmark]: Boogie Preprocessor took 68.87ms. Allocated memory is still 221.2MB. Free memory was 146.0MB in the beginning and 140.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 08:24:41,781 INFO L158 Benchmark]: RCFGBuilder took 1046.19ms. Allocated memory was 221.2MB in the beginning and 323.0MB in the end (delta: 101.7MB). Free memory was 140.7MB in the beginning and 241.4MB in the end (delta: -100.7MB). Peak memory consumption was 75.0MB. Max. memory is 8.0GB. [2023-12-16 08:24:41,782 INFO L158 Benchmark]: TraceAbstraction took 24299.39ms. Allocated memory was 323.0MB in the beginning and 789.6MB in the end (delta: 466.6MB). Free memory was 240.9MB in the beginning and 713.8MB in the end (delta: -472.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:24:41,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 221.2MB. Free memory is still 178.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 394.86ms. Allocated memory is still 221.2MB. Free memory was 180.6MB in the beginning and 151.7MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 81.06ms. Allocated memory is still 221.2MB. Free memory was 151.7MB in the beginning and 146.0MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 68.87ms. Allocated memory is still 221.2MB. Free memory was 146.0MB in the beginning and 140.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1046.19ms. Allocated memory was 221.2MB in the beginning and 323.0MB in the end (delta: 101.7MB). Free memory was 140.7MB in the beginning and 241.4MB in the end (delta: -100.7MB). Peak memory consumption was 75.0MB. Max. memory is 8.0GB. * TraceAbstraction took 24299.39ms. Allocated memory was 323.0MB in the beginning and 789.6MB in the end (delta: 466.6MB). Free memory was 240.9MB in the beginning and 713.8MB in the end (delta: -472.9MB). There was no memory consumed. 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: 473]: 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, 165 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.2s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3005 SdHoareTripleChecker+Valid, 7.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3005 mSDsluCounter, 2311 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 429 mSDsCounter, 758 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9188 IncrementalHoareTripleChecker+Invalid, 9946 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 758 mSolverCounterUnsat, 1882 mSDtfsCounter, 9188 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2865 GetRequests, 2802 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1344occurred in iteration=13, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 906 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 21 NumberOfFragments, 145 HoareAnnotationTreeSize, 1 FormulaSimplifications, 128 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FormulaSimplificationsInter, 255 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 2549 NumberOfCodeBlocks, 2549 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2854 ConstructedInterpolants, 0 QuantifiedInterpolants, 19500 SizeOfPredicates, 23 NumberOfNonLiveVariables, 3471 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 2459/3069 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: 616]: Loop Invariant Derived loop invariant: ((((((((((((((1 == a25) && (10 == a28)) && (0 == a11)) && (8 == a17)) || ((1 == a11) && (8 == a17))) || ((1 == a19) && !((1 == a21)))) || (((1 == a25) && (1 == a19)) && (0 == a11))) || (((!((1 == a19)) && ((7 == a28) || ((1 == a25) && (8 == a28)))) && (0 == a11)) && (8 == a17))) || ((((1 == a19) && (0 == a11)) && (a28 == 9)) && (8 == a17))) || ((((7 == a28) && (0 == a25)) && (0 == a11)) && (8 == a17))) || ((((1 == a19) && (10 == a28)) && (0 == a11)) && (8 == a17))) || ((1 == a11) && (!((1 == a19)) || !((1 == a21))))) || (((((8 == a28) && (0 == a25)) && (0 == a11)) && (!((1 == a19)) || !((1 == a21)))) && (8 == a17))) || (((7 == a17) && (1 == a11)) && (1 == a25))) RESULT: Ultimate proved your program to be correct! [2023-12-16 08:24:41,796 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...