/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:06:06,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:06:06,451 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 08:06:06,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:06:06,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:06:06,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:06:06,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:06:06,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:06:06,486 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:06:06,490 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:06:06,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:06:06,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:06:06,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:06:06,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:06:06,491 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:06:06,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:06:06,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:06:06,492 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:06:06,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:06:06,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:06:06,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:06:06,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:06:06,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:06:06,494 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:06:06,494 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:06:06,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:06:06,495 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:06:06,495 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:06:06,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:06:06,495 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:06:06,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:06:06,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:06:06,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:06:06,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:06:06,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:06:06,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:06:06,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:06:06,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:06:06,497 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:06:06,497 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:06:06,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:06:06,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:06:06,497 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:06:06,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:06:06,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:06:06,498 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:06:06,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:06:06,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:06:06,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:06:06,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:06:06,696 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:06:06,698 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:06:06,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-16 08:06:07,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:06:08,284 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:06:08,284 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-16 08:06:08,318 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13679d9b/abd0c05c565e48d5a865829c0ed53264/FLAG7cfe7953d [2023-12-16 08:06:08,332 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13679d9b/abd0c05c565e48d5a865829c0ed53264 [2023-12-16 08:06:08,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:06:08,335 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:06:08,336 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:06:08,336 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:06:08,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:06:08,340 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:06:08" (1/1) ... [2023-12-16 08:06:08,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23246a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:08, skipping insertion in model container [2023-12-16 08:06:08,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:06:08" (1/1) ... [2023-12-16 08:06:08,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:06:08,745 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label05.c[26888,26901] [2023-12-16 08:06:08,801 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label05.c[33824,33837] [2023-12-16 08:06:09,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:06:09,390 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:06:09,437 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label05.c[26888,26901] [2023-12-16 08:06:09,445 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label05.c[33824,33837] [2023-12-16 08:06:09,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:06:09,859 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:06:09,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09 WrapperNode [2023-12-16 08:06:09,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:06:09,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:06:09,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:06:09,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:06:09,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:09,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,060 INFO L138 Inliner]: procedures = 41, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5250 [2023-12-16 08:06:10,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:06:10,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:06:10,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:06:10,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:06:10,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,173 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 08:06:10,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:06:10,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:06:10,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:06:10,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:06:10,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (1/1) ... [2023-12-16 08:06:10,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:06:10,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:06:10,398 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 08:06:10,420 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 08:06:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:06:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:06:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:06:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:06:10,569 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:06:10,571 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:06:37,272 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:06:37,329 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:06:37,329 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 08:06:37,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:06:37 BoogieIcfgContainer [2023-12-16 08:06:37,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:06:37,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:06:37,331 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:06:37,333 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:06:37,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:06:08" (1/3) ... [2023-12-16 08:06:37,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78256dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:06:37, skipping insertion in model container [2023-12-16 08:06:37,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:06:09" (2/3) ... [2023-12-16 08:06:37,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78256dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:06:37, skipping insertion in model container [2023-12-16 08:06:37,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:06:37" (3/3) ... [2023-12-16 08:06:37,335 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-16 08:06:37,346 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:06:37,347 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:06:37,401 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:06:37,407 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;@53bdeb92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:06:37,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:06:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states 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 08:06:37,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-16 08:06:37,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:37,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:06:37,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:37,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:37,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1451363693, now seen corresponding path program 1 times [2023-12-16 08:06:37,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:37,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450649572] [2023-12-16 08:06:37,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:37,444 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 08:06:37,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:37,447 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 08:06:37,450 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 08:06:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:37,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 08:06:37,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:37,615 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 08:06:37,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:37,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:37,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450649572] [2023-12-16 08:06:37,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450649572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:37,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:37,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:06:37,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844291245] [2023-12-16 08:06:37,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:37,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 08:06:37,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:37,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 08:06:37,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:06:37,653 INFO L87 Difference]: Start difference. First operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 0 states have call successors, (0), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 08:06:37,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:37,733 INFO L93 Difference]: Finished difference Result 1702 states and 3341 transitions. [2023-12-16 08:06:37,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 08:06:37,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-12-16 08:06:37,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:37,749 INFO L225 Difference]: With dead ends: 1702 [2023-12-16 08:06:37,749 INFO L226 Difference]: Without dead ends: 880 [2023-12-16 08:06:37,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 08:06:37,757 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:06:37,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1663 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:06:37,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-16 08:06:37,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-16 08:06:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.8952164009111618) internal successors, (1664), 879 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states 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 08:06:37,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1664 transitions. [2023-12-16 08:06:37,817 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1664 transitions. Word has length 27 [2023-12-16 08:06:37,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:37,817 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1664 transitions. [2023-12-16 08:06:37,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 08:06:37,817 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1664 transitions. [2023-12-16 08:06:37,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-16 08:06:37,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:37,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:06:37,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 08:06:38,023 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 08:06:38,024 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:38,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:38,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1038165269, now seen corresponding path program 1 times [2023-12-16 08:06:38,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:38,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865689911] [2023-12-16 08:06:38,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:38,026 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 08:06:38,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:38,027 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 08:06:38,030 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 08:06:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:38,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:06:38,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:38,189 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 08:06:38,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:38,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:38,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865689911] [2023-12-16 08:06:38,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865689911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:38,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:38,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:06:38,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777158871] [2023-12-16 08:06:38,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:38,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:06:38,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:38,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:06:38,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:06:38,192 INFO L87 Difference]: Start difference. First operand 880 states and 1664 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 08:06:38,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:06:38,303 INFO L93 Difference]: Finished difference Result 944 states and 1766 transitions. [2023-12-16 08:06:38,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:06:38,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-12-16 08:06:38,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:06:38,307 INFO L225 Difference]: With dead ends: 944 [2023-12-16 08:06:38,307 INFO L226 Difference]: Without dead ends: 880 [2023-12-16 08:06:38,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:06:38,309 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 0 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:06:38,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4918 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:06:38,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-16 08:06:38,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-16 08:06:38,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.825740318906606) internal successors, (1603), 879 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states 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 08:06:38,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1603 transitions. [2023-12-16 08:06:38,348 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1603 transitions. Word has length 27 [2023-12-16 08:06:38,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:06:38,348 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1603 transitions. [2023-12-16 08:06:38,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 08:06:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1603 transitions. [2023-12-16 08:06:38,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 08:06:38,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:06:38,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:06:38,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 08:06:38,554 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 08:06:38,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:06:38,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:06:38,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1445962365, now seen corresponding path program 1 times [2023-12-16 08:06:38,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:06:38,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398067922] [2023-12-16 08:06:38,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:06:38,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:06:38,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:06:38,565 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 08:06:38,570 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 08:06:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:06:38,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:06:38,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:06:38,775 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 08:06:38,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:06:38,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:06:38,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398067922] [2023-12-16 08:06:38,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398067922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:06:38,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:06:38,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:06:38,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421516963] [2023-12-16 08:06:38,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:06:38,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:06:38,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:06:38,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:06:38,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:06:38,778 INFO L87 Difference]: Start difference. First operand 880 states and 1603 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:07:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:13,063 INFO L93 Difference]: Finished difference Result 2384 states and 4476 transitions. [2023-12-16 08:07:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:13,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-12-16 08:07:13,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:13,069 INFO L225 Difference]: With dead ends: 2384 [2023-12-16 08:07:13,069 INFO L226 Difference]: Without dead ends: 1631 [2023-12-16 08:07:13,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:13,074 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 906 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:07:13,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 636 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 34.1s Time] [2023-12-16 08:07:13,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-16 08:07:13,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2023-12-16 08:07:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.5850214855739717) internal successors, (2582), 1630 states have internal predecessors, (2582), 0 states have call successors, (0), 0 states 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 08:07:13,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2582 transitions. [2023-12-16 08:07:13,100 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2582 transitions. Word has length 59 [2023-12-16 08:07:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:13,101 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2582 transitions. [2023-12-16 08:07:13,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:07:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2582 transitions. [2023-12-16 08:07:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 08:07:13,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:13,108 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] [2023-12-16 08:07:13,118 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 08:07:13,312 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 08:07:13,313 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:13,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:13,313 INFO L85 PathProgramCache]: Analyzing trace with hash 64149573, now seen corresponding path program 1 times [2023-12-16 08:07:13,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:13,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389382217] [2023-12-16 08:07:13,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:13,314 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 08:07:13,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:13,319 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 08:07:13,319 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 08:07:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:13,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 08:07:13,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:15,286 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 08:07:15,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:15,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:15,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389382217] [2023-12-16 08:07:15,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389382217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:15,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:15,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 08:07:15,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147524984] [2023-12-16 08:07:15,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:15,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 08:07:15,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:15,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 08:07:15,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:07:15,295 INFO L87 Difference]: Start difference. First operand 1631 states and 2582 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:07:15,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:15,773 INFO L93 Difference]: Finished difference Result 2180 states and 3473 transitions. [2023-12-16 08:07:15,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 08:07:15,775 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-16 08:07:15,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:15,782 INFO L225 Difference]: With dead ends: 2180 [2023-12-16 08:07:15,782 INFO L226 Difference]: Without dead ends: 2119 [2023-12-16 08:07:15,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:07:15,783 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 8326 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8326 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:07:15,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8326 Valid, 2593 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:07:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2023-12-16 08:07:15,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1749. [2023-12-16 08:07:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1747 states have (on average 1.5884373211219234) internal successors, (2775), 1748 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states 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 08:07:15,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2775 transitions. [2023-12-16 08:07:15,811 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2775 transitions. Word has length 87 [2023-12-16 08:07:15,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:15,812 INFO L495 AbstractCegarLoop]: Abstraction has 1749 states and 2775 transitions. [2023-12-16 08:07:15,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:07:15,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2775 transitions. [2023-12-16 08:07:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 08:07:15,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:15,813 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] [2023-12-16 08:07:15,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 08:07:16,017 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 08:07:16,017 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:16,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:16,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1377991541, now seen corresponding path program 1 times [2023-12-16 08:07:16,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:16,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081810734] [2023-12-16 08:07:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:16,019 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 08:07:16,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:16,034 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 08:07:16,068 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 08:07:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:16,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:07:16,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:16,296 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 08:07:16,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:16,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:16,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081810734] [2023-12-16 08:07:16,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081810734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:16,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:16,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:07:16,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180654474] [2023-12-16 08:07:16,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:16,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:07:16,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:16,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:07:16,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:16,299 INFO L87 Difference]: Start difference. First operand 1749 states and 2775 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:07:16,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:16,346 INFO L93 Difference]: Finished difference Result 2091 states and 3331 transitions. [2023-12-16 08:07:16,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:16,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-16 08:07:16,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:16,352 INFO L225 Difference]: With dead ends: 2091 [2023-12-16 08:07:16,353 INFO L226 Difference]: Without dead ends: 1912 [2023-12-16 08:07:16,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 08:07:16,354 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 1506 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:07:16,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1687 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:16,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2023-12-16 08:07:16,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1907. [2023-12-16 08:07:16,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1905 states have (on average 1.588976377952756) internal successors, (3027), 1906 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states 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 08:07:16,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3027 transitions. [2023-12-16 08:07:16,384 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3027 transitions. Word has length 89 [2023-12-16 08:07:16,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:16,384 INFO L495 AbstractCegarLoop]: Abstraction has 1907 states and 3027 transitions. [2023-12-16 08:07:16,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:07:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3027 transitions. [2023-12-16 08:07:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 08:07:16,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:16,385 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] [2023-12-16 08:07:16,392 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 08:07:16,590 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 08:07:16,590 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:16,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash -294343871, now seen corresponding path program 1 times [2023-12-16 08:07:16,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:16,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592538225] [2023-12-16 08:07:16,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:16,592 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 08:07:16,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:16,593 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 08:07:16,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 08:07:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:16,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:07:16,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:16,742 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 08:07:16,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:16,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:16,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592538225] [2023-12-16 08:07:16,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592538225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:16,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:16,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:07:16,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216678242] [2023-12-16 08:07:16,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:16,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:07:16,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:16,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:07:16,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:07:16,744 INFO L87 Difference]: Start difference. First operand 1907 states and 3027 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 08:07:16,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:16,805 INFO L93 Difference]: Finished difference Result 1921 states and 3044 transitions. [2023-12-16 08:07:16,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:07:16,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2023-12-16 08:07:16,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:16,811 INFO L225 Difference]: With dead ends: 1921 [2023-12-16 08:07:16,812 INFO L226 Difference]: Without dead ends: 1919 [2023-12-16 08:07:16,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:07:16,813 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 1 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4789 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:07:16,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4789 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:16,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2023-12-16 08:07:16,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1915. [2023-12-16 08:07:16,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1913 states have (on average 1.5859905906952432) internal successors, (3034), 1914 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states 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 08:07:16,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 3034 transitions. [2023-12-16 08:07:16,837 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 3034 transitions. Word has length 90 [2023-12-16 08:07:16,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:16,839 INFO L495 AbstractCegarLoop]: Abstraction has 1915 states and 3034 transitions. [2023-12-16 08:07:16,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 08:07:16,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 3034 transitions. [2023-12-16 08:07:16,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:07:16,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:16,840 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] [2023-12-16 08:07:16,844 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 08:07:17,044 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 08:07:17,044 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:17,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:17,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1953031475, now seen corresponding path program 1 times [2023-12-16 08:07:17,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:17,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654497830] [2023-12-16 08:07:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:17,045 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 08:07:17,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:17,047 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 08:07:17,051 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 08:07:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:17,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:07:17,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:17,280 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 08:07:17,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:17,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:17,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654497830] [2023-12-16 08:07:17,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654497830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:17,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:17,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:07:17,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605614216] [2023-12-16 08:07:17,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:17,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:07:17,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:07:17,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:17,283 INFO L87 Difference]: Start difference. First operand 1915 states and 3034 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 08:07:17,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:17,333 INFO L93 Difference]: Finished difference Result 2581 states and 4094 transitions. [2023-12-16 08:07:17,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:17,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-16 08:07:17,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:17,339 INFO L225 Difference]: With dead ends: 2581 [2023-12-16 08:07:17,339 INFO L226 Difference]: Without dead ends: 2236 [2023-12-16 08:07:17,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 08:07:17,340 INFO L413 NwaCegarLoop]: 1675 mSDtfsCounter, 1525 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:07:17,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:17,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2023-12-16 08:07:17,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2234. [2023-12-16 08:07:17,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 2232 states have (on average 1.5842293906810037) internal successors, (3536), 2233 states have internal predecessors, (3536), 0 states have call successors, (0), 0 states 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 08:07:17,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 3536 transitions. [2023-12-16 08:07:17,371 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 3536 transitions. Word has length 91 [2023-12-16 08:07:17,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:17,371 INFO L495 AbstractCegarLoop]: Abstraction has 2234 states and 3536 transitions. [2023-12-16 08:07:17,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 08:07:17,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 3536 transitions. [2023-12-16 08:07:17,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:07:17,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:17,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:17,378 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 08:07:17,576 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 08:07:17,577 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:17,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:17,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1197647411, now seen corresponding path program 1 times [2023-12-16 08:07:17,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:17,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898298004] [2023-12-16 08:07:17,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:17,578 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 08:07:17,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:17,593 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 08:07:17,641 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 08:07:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:17,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:07:17,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:17,809 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 08:07:17,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:17,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:17,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898298004] [2023-12-16 08:07:17,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898298004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:17,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:17,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:07:17,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616453249] [2023-12-16 08:07:17,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:17,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:07:17,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:17,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:07:17,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:17,813 INFO L87 Difference]: Start difference. First operand 2234 states and 3536 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 08:07:17,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:17,857 INFO L93 Difference]: Finished difference Result 3514 states and 5558 transitions. [2023-12-16 08:07:17,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:17,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-16 08:07:17,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:17,865 INFO L225 Difference]: With dead ends: 3514 [2023-12-16 08:07:17,866 INFO L226 Difference]: Without dead ends: 2850 [2023-12-16 08:07:17,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 08:07:17,870 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 1523 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:07:17,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2023-12-16 08:07:17,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2848. [2023-12-16 08:07:17,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2846 states have (on average 1.578355586788475) internal successors, (4492), 2847 states have internal predecessors, (4492), 0 states have call successors, (0), 0 states 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 08:07:17,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4492 transitions. [2023-12-16 08:07:17,955 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4492 transitions. Word has length 91 [2023-12-16 08:07:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:17,956 INFO L495 AbstractCegarLoop]: Abstraction has 2848 states and 4492 transitions. [2023-12-16 08:07:17,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 08:07:17,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4492 transitions. [2023-12-16 08:07:17,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:07:17,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:17,957 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] [2023-12-16 08:07:17,965 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 08:07:18,163 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 08:07:18,163 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:18,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:18,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1876617267, now seen corresponding path program 1 times [2023-12-16 08:07:18,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:18,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624144243] [2023-12-16 08:07:18,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:18,164 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 08:07:18,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:18,165 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 08:07:18,192 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 08:07:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:18,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:07:18,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:18,364 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 08:07:18,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:18,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:18,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624144243] [2023-12-16 08:07:18,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624144243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:18,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:18,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:07:18,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106141746] [2023-12-16 08:07:18,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:18,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:07:18,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:18,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:07:18,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:18,366 INFO L87 Difference]: Start difference. First operand 2848 states and 4492 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 08:07:18,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:18,411 INFO L93 Difference]: Finished difference Result 5308 states and 8342 transitions. [2023-12-16 08:07:18,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:18,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-16 08:07:18,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:18,421 INFO L225 Difference]: With dead ends: 5308 [2023-12-16 08:07:18,421 INFO L226 Difference]: Without dead ends: 4030 [2023-12-16 08:07:18,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 08:07:18,423 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1519 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:07:18,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1776 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:18,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4030 states. [2023-12-16 08:07:18,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4030 to 4028. [2023-12-16 08:07:18,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 4026 states have (on average 1.566815697963239) internal successors, (6308), 4027 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states 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 08:07:18,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 6308 transitions. [2023-12-16 08:07:18,479 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 6308 transitions. Word has length 91 [2023-12-16 08:07:18,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:07:18,479 INFO L495 AbstractCegarLoop]: Abstraction has 4028 states and 6308 transitions. [2023-12-16 08:07:18,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 08:07:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 6308 transitions. [2023-12-16 08:07:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 08:07:18,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:07:18,480 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] [2023-12-16 08:07:18,496 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 08:07:18,683 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 08:07:18,684 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:07:18,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:07:18,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1836673331, now seen corresponding path program 1 times [2023-12-16 08:07:18,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:07:18,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066872010] [2023-12-16 08:07:18,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:07:18,685 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 08:07:18,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:07:18,686 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 08:07:18,691 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 08:07:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:07:18,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:07:18,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:07:18,862 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 08:07:18,862 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:07:18,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:07:18,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066872010] [2023-12-16 08:07:18,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066872010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:07:18,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:07:18,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:07:18,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015991471] [2023-12-16 08:07:18,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:07:18,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:07:18,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:07:18,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:07:18,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:07:18,864 INFO L87 Difference]: Start difference. First operand 4028 states and 6308 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 08:07:18,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:07:18,965 INFO L93 Difference]: Finished difference Result 8752 states and 13622 transitions. [2023-12-16 08:07:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:07:18,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-16 08:07:18,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:07:18,995 INFO L225 Difference]: With dead ends: 8752 [2023-12-16 08:07:18,995 INFO L226 Difference]: Without dead ends: 6294 [2023-12-16 08:07:18,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 08:07:19,000 INFO L413 NwaCegarLoop]: 1659 mSDtfsCounter, 1517 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:07:19,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:07:19,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6294 states. Received shutdown request... [2023-12-16 08:07:19,077 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:07:19,092 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:07:19,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6294 to 6292. [2023-12-16 08:07:19,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 1.5497615262321145) internal successors, (9748), 6291 states have internal predecessors, (9748), 0 states have call successors, (0), 0 states 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 08:07:19,150 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:07:19,157 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 08:07:19,354 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 08:07:19,356 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 08:07:19,358 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:07:19,361 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:07:19,363 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:07:19,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:07:19 BoogieIcfgContainer [2023-12-16 08:07:19,365 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:07:19,365 INFO L158 Benchmark]: Toolchain (without parser) took 71030.45ms. Allocated memory was 303.0MB in the beginning and 696.3MB in the end (delta: 393.2MB). Free memory was 236.3MB in the beginning and 292.9MB in the end (delta: -56.6MB). Peak memory consumption was 337.9MB. Max. memory is 8.0GB. [2023-12-16 08:07:19,366 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 202.4MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:07:19,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1523.69ms. Allocated memory was 303.0MB in the beginning and 442.5MB in the end (delta: 139.5MB). Free memory was 236.3MB in the beginning and 377.8MB in the end (delta: -141.5MB). Peak memory consumption was 147.1MB. Max. memory is 8.0GB. [2023-12-16 08:07:19,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 200.10ms. Allocated memory is still 442.5MB. Free memory was 377.3MB in the beginning and 341.1MB in the end (delta: 36.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-16 08:07:19,366 INFO L158 Benchmark]: Boogie Preprocessor took 280.97ms. Allocated memory is still 442.5MB. Free memory was 341.1MB in the beginning and 302.3MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-16 08:07:19,367 INFO L158 Benchmark]: RCFGBuilder took 26987.12ms. Allocated memory was 442.5MB in the beginning and 696.3MB in the end (delta: 253.8MB). Free memory was 301.8MB in the beginning and 578.1MB in the end (delta: -276.3MB). Peak memory consumption was 170.9MB. Max. memory is 8.0GB. [2023-12-16 08:07:19,367 INFO L158 Benchmark]: TraceAbstraction took 42034.17ms. Allocated memory is still 696.3MB. Free memory was 577.0MB in the beginning and 292.9MB in the end (delta: 284.2MB). Peak memory consumption was 284.2MB. Max. memory is 8.0GB. [2023-12-16 08:07:19,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 202.4MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1523.69ms. Allocated memory was 303.0MB in the beginning and 442.5MB in the end (delta: 139.5MB). Free memory was 236.3MB in the beginning and 377.8MB in the end (delta: -141.5MB). Peak memory consumption was 147.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 200.10ms. Allocated memory is still 442.5MB. Free memory was 377.3MB in the beginning and 341.1MB in the end (delta: 36.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 280.97ms. Allocated memory is still 442.5MB. Free memory was 341.1MB in the beginning and 302.3MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * RCFGBuilder took 26987.12ms. Allocated memory was 442.5MB in the beginning and 696.3MB in the end (delta: 253.8MB). Free memory was 301.8MB in the beginning and 578.1MB in the end (delta: -276.3MB). Peak memory consumption was 170.9MB. Max. memory is 8.0GB. * TraceAbstraction took 42034.17ms. Allocated memory is still 696.3MB. Free memory was 577.0MB in the beginning and 292.9MB in the end (delta: 284.2MB). Peak memory consumption was 284.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 683). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 878]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 878). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 884 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 42.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 35.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16823 SdHoareTripleChecker+Valid, 34.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16823 mSDsluCounter, 23398 SdHoareTripleChecker+Invalid, 28.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7988 mSDsCounter, 536 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2614 IncrementalHoareTripleChecker+Invalid, 3150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 536 mSolverCounterUnsat, 15410 mSDtfsCounter, 2614 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 733 GetRequests, 715 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4028occurred in iteration=9, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 385 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 743 NumberOfCodeBlocks, 743 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 733 ConstructedInterpolants, 0 QuantifiedInterpolants, 3951 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2249 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown