/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/loops-crafted-1/Mono1_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 23:15:28,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 23:15:28,427 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 23:15:28,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 23:15:28,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 23:15:28,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 23:15:28,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 23:15:28,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 23:15:28,457 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 23:15:28,460 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 23:15:28,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 23:15:28,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 23:15:28,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 23:15:28,462 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 23:15:28,462 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 23:15:28,463 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 23:15:28,463 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 23:15:28,463 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 23:15:28,463 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 23:15:28,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 23:15:28,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 23:15:28,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 23:15:28,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 23:15:28,465 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 23:15:28,465 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 23:15:28,465 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 23:15:28,465 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 23:15:28,465 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 23:15:28,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 23:15:28,466 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 23:15:28,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 23:15:28,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 23:15:28,467 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 23:15:28,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 23:15:28,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 23:15:28,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 23:15:28,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 23:15:28,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 23:15:28,467 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 23:15:28,468 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 23:15:28,468 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 23:15:28,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 23:15:28,468 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 23:15:28,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 23:15:28,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 23:15:28,469 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 23:15:28,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 23:15:28,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 23:15:28,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 23:15:28,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 23:15:28,684 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 23:15:28,686 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 23:15:28,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/Mono1_1-1.c [2023-12-24 23:15:29,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 23:15:29,975 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 23:15:29,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/Mono1_1-1.c [2023-12-24 23:15:29,980 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa7a2e83c/5e3aa3a03a884266899a983b3e23d5ec/FLAG6529365c5 [2023-12-24 23:15:29,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa7a2e83c/5e3aa3a03a884266899a983b3e23d5ec [2023-12-24 23:15:29,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 23:15:30,000 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 23:15:30,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 23:15:30,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 23:15:30,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 23:15:30,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:15:29" (1/1) ... [2023-12-24 23:15:30,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ca0af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30, skipping insertion in model container [2023-12-24 23:15:30,007 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:15:29" (1/1) ... [2023-12-24 23:15:30,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 23:15:30,135 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/Mono1_1-1.c[313,326] [2023-12-24 23:15:30,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 23:15:30,159 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 23:15:30,168 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/Mono1_1-1.c[313,326] [2023-12-24 23:15:30,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 23:15:30,179 INFO L206 MainTranslator]: Completed translation [2023-12-24 23:15:30,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30 WrapperNode [2023-12-24 23:15:30,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 23:15:30,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 23:15:30,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 23:15:30,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 23:15:30,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,204 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2023-12-24 23:15:30,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 23:15:30,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 23:15:30,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 23:15:30,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 23:15:30,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,213 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,221 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]. [2023-12-24 23:15:30,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,226 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 23:15:30,228 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 23:15:30,228 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 23:15:30,228 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 23:15:30,229 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (1/1) ... [2023-12-24 23:15:30,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 23:15:30,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 23:15:30,257 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) [2023-12-24 23:15:30,276 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 [2023-12-24 23:15:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 23:15:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 23:15:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 23:15:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 23:15:30,325 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 23:15:30,327 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 23:15:30,410 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 23:15:30,436 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 23:15:30,436 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 23:15:30,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:15:30 BoogieIcfgContainer [2023-12-24 23:15:30,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 23:15:30,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 23:15:30,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 23:15:30,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 23:15:30,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 11:15:29" (1/3) ... [2023-12-24 23:15:30,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2b33a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:15:30, skipping insertion in model container [2023-12-24 23:15:30,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:15:30" (2/3) ... [2023-12-24 23:15:30,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2b33a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:15:30, skipping insertion in model container [2023-12-24 23:15:30,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:15:30" (3/3) ... [2023-12-24 23:15:30,444 INFO L112 eAbstractionObserver]: Analyzing ICFG Mono1_1-1.c [2023-12-24 23:15:30,456 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 23:15:30,456 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 23:15:30,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 23:15:30,500 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;@4a4bdefb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 23:15:30,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 23:15:30,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:30,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-24 23:15:30,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:15:30,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-24 23:15:30,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:15:30,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:15:30,517 INFO L85 PathProgramCache]: Analyzing trace with hash 62462887, now seen corresponding path program 1 times [2023-12-24 23:15:30,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:15:30,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132843971] [2023-12-24 23:15:30,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 23:15:30,527 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 [2023-12-24 23:15:30,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:15:30,554 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) [2023-12-24 23:15:30,556 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 [2023-12-24 23:15:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 23:15:30,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 23:15:30,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:15:30,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:15:30,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 23:15:30,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:15:30,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132843971] [2023-12-24 23:15:30,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132843971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 23:15:30,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 23:15:30,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 23:15:30,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510229585] [2023-12-24 23:15:30,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 23:15:30,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 23:15:30,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:15:30,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 23:15:30,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 23:15:30,664 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:30,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:15:30,681 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2023-12-24 23:15:30,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 23:15:30,683 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2023-12-24 23:15:30,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:15:30,687 INFO L225 Difference]: With dead ends: 15 [2023-12-24 23:15:30,688 INFO L226 Difference]: Without dead ends: 7 [2023-12-24 23:15:30,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 23:15:30,692 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 23:15:30,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 23:15:30,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2023-12-24 23:15:30,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-12-24 23:15:30,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:30,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2023-12-24 23:15:30,711 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2023-12-24 23:15:30,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:15:30,711 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-12-24 23:15:30,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:30,712 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-24 23:15:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-24 23:15:30,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:15:30,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-24 23:15:30,717 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 [2023-12-24 23:15:30,914 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 [2023-12-24 23:15:30,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:15:30,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:15:30,917 INFO L85 PathProgramCache]: Analyzing trace with hash 62164977, now seen corresponding path program 1 times [2023-12-24 23:15:30,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:15:30,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562647032] [2023-12-24 23:15:30,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 23:15:30,918 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 [2023-12-24 23:15:30,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:15:30,919 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) [2023-12-24 23:15:30,941 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 [2023-12-24 23:15:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 23:15:30,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 23:15:30,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:15:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:15:30,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 23:15:30,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:15:30,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562647032] [2023-12-24 23:15:30,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562647032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 23:15:30,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 23:15:30,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 23:15:30,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328591499] [2023-12-24 23:15:30,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 23:15:30,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 23:15:30,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:15:30,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 23:15:30,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 23:15:30,995 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:31,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:15:31,022 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-12-24 23:15:31,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 23:15:31,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2023-12-24 23:15:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:15:31,023 INFO L225 Difference]: With dead ends: 15 [2023-12-24 23:15:31,023 INFO L226 Difference]: Without dead ends: 9 [2023-12-24 23:15:31,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 23:15:31,025 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 23:15:31,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 23:15:31,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-24 23:15:31,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-12-24 23:15:31,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:31,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-12-24 23:15:31,028 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 5 [2023-12-24 23:15:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:15:31,028 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-12-24 23:15:31,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-12-24 23:15:31,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-24 23:15:31,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:15:31,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-24 23:15:31,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 23:15:31,230 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 [2023-12-24 23:15:31,231 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:15:31,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:15:31,232 INFO L85 PathProgramCache]: Analyzing trace with hash -338656492, now seen corresponding path program 1 times [2023-12-24 23:15:31,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:15:31,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338066838] [2023-12-24 23:15:31,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 23:15:31,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:15:31,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:15:31,236 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) [2023-12-24 23:15:31,241 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 [2023-12-24 23:15:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 23:15:31,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 23:15:31,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:15:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:15:31,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:15:31,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:15:31,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:15:31,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338066838] [2023-12-24 23:15:31,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338066838] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:15:31,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:15:31,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-24 23:15:31,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622923495] [2023-12-24 23:15:31,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:15:31,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 23:15:31,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:15:31,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 23:15:31,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-24 23:15:31,307 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:31,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:15:31,347 INFO L93 Difference]: Finished difference Result 19 states and 25 transitions. [2023-12-24 23:15:31,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 23:15:31,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 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 7 [2023-12-24 23:15:31,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:15:31,349 INFO L225 Difference]: With dead ends: 19 [2023-12-24 23:15:31,349 INFO L226 Difference]: Without dead ends: 13 [2023-12-24 23:15:31,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-24 23:15:31,353 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 23:15:31,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 23:15:31,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-12-24 23:15:31,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-12-24 23:15:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:31,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-12-24 23:15:31,357 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 7 [2023-12-24 23:15:31,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:15:31,358 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-12-24 23:15:31,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:31,358 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-12-24 23:15:31,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-24 23:15:31,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:15:31,358 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2023-12-24 23:15:31,376 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 [2023-12-24 23:15:31,561 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 [2023-12-24 23:15:31,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:15:31,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:15:31,562 INFO L85 PathProgramCache]: Analyzing trace with hash 28316188, now seen corresponding path program 1 times [2023-12-24 23:15:31,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:15:31,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662485573] [2023-12-24 23:15:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 23:15:31,563 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 [2023-12-24 23:15:31,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:15:31,564 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) [2023-12-24 23:15:31,565 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 [2023-12-24 23:15:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 23:15:31,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 23:15:31,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:15:31,606 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:15:31,606 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:15:31,637 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:15:31,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:15:31,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662485573] [2023-12-24 23:15:31,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662485573] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:15:31,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:15:31,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-24 23:15:31,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969953963] [2023-12-24 23:15:31,638 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:15:31,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 23:15:31,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:15:31,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 23:15:31,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 23:15:31,639 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:15:31,688 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2023-12-24 23:15:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 23:15:31,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 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 11 [2023-12-24 23:15:31,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:15:31,689 INFO L225 Difference]: With dead ends: 27 [2023-12-24 23:15:31,689 INFO L226 Difference]: Without dead ends: 20 [2023-12-24 23:15:31,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-24 23:15:31,691 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 23:15:31,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 23:15:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-24 23:15:31,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-12-24 23:15:31,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:31,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2023-12-24 23:15:31,695 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 11 [2023-12-24 23:15:31,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:15:31,695 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2023-12-24 23:15:31,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:31,695 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2023-12-24 23:15:31,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-24 23:15:31,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:15:31,696 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1] [2023-12-24 23:15:31,700 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 [2023-12-24 23:15:31,900 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 [2023-12-24 23:15:31,901 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:15:31,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:15:31,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1927939800, now seen corresponding path program 2 times [2023-12-24 23:15:31,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:15:31,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794057392] [2023-12-24 23:15:31,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-24 23:15:31,902 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 [2023-12-24 23:15:31,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:15:31,903 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) [2023-12-24 23:15:31,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-24 23:15:31,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:15:31,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-24 23:15:31,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:15:31,927 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 [2023-12-24 23:15:31,991 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:15:31,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:15:32,120 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:15:32,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:15:32,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794057392] [2023-12-24 23:15:32,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794057392] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:15:32,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:15:32,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-24 23:15:32,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730750060] [2023-12-24 23:15:32,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:15:32,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-24 23:15:32,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:15:32,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-24 23:15:32,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-24 23:15:32,123 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:32,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:15:32,370 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2023-12-24 23:15:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-24 23:15:32,371 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-24 23:15:32,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:15:32,372 INFO L225 Difference]: With dead ends: 37 [2023-12-24 23:15:32,372 INFO L226 Difference]: Without dead ends: 30 [2023-12-24 23:15:32,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2023-12-24 23:15:32,373 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 23:15:32,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 22 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 23:15:32,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-24 23:15:32,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-24 23:15:32,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:32,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-12-24 23:15:32,379 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 19 [2023-12-24 23:15:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:15:32,379 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-12-24 23:15:32,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:32,379 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-12-24 23:15:32,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-24 23:15:32,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:15:32,380 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 5, 1, 1, 1, 1, 1] [2023-12-24 23:15:32,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-24 23:15:32,580 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 [2023-12-24 23:15:32,581 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:15:32,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:15:32,582 INFO L85 PathProgramCache]: Analyzing trace with hash 2065334815, now seen corresponding path program 3 times [2023-12-24 23:15:32,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:15:32,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500965780] [2023-12-24 23:15:32,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-24 23:15:32,582 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 [2023-12-24 23:15:32,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:15:32,584 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) [2023-12-24 23:15:32,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 23:15:32,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2023-12-24 23:15:32,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:15:32,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 23:15:32,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:15:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 77 proven. 25 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-24 23:15:32,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:15:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 77 proven. 25 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-24 23:15:32,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:15:32,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500965780] [2023-12-24 23:15:32,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500965780] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:15:32,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:15:32,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2023-12-24 23:15:32,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284094494] [2023-12-24 23:15:32,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:15:32,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-24 23:15:32,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:15:32,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-24 23:15:32,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-24 23:15:32,859 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 15 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:33,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:15:33,125 INFO L93 Difference]: Finished difference Result 59 states and 83 transitions. [2023-12-24 23:15:33,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-24 23:15:33,126 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 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 29 [2023-12-24 23:15:33,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:15:33,126 INFO L225 Difference]: With dead ends: 59 [2023-12-24 23:15:33,126 INFO L226 Difference]: Without dead ends: 44 [2023-12-24 23:15:33,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=261, Unknown=0, NotChecked=0, Total=420 [2023-12-24 23:15:33,127 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 23:15:33,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 7 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 23:15:33,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-24 23:15:33,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-12-24 23:15:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:33,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2023-12-24 23:15:33,133 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 29 [2023-12-24 23:15:33,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:15:33,134 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2023-12-24 23:15:33,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:33,134 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2023-12-24 23:15:33,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-24 23:15:33,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:15:33,135 INFO L195 NwaCegarLoop]: trace histogram [19, 12, 7, 1, 1, 1, 1, 1] [2023-12-24 23:15:33,139 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 [2023-12-24 23:15:33,337 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 [2023-12-24 23:15:33,337 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:15:33,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:15:33,337 INFO L85 PathProgramCache]: Analyzing trace with hash 768137826, now seen corresponding path program 4 times [2023-12-24 23:15:33,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:15:33,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144917888] [2023-12-24 23:15:33,338 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-24 23:15:33,338 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 [2023-12-24 23:15:33,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:15:33,339 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) [2023-12-24 23:15:33,366 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-24 23:15:33,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:15:33,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-24 23:15:33,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:15:33,369 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 [2023-12-24 23:15:33,421 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 184 proven. 56 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-24 23:15:33,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:15:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 184 proven. 56 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-24 23:15:33,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:15:33,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144917888] [2023-12-24 23:15:33,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144917888] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:15:33,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:15:33,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-24 23:15:33,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179471976] [2023-12-24 23:15:33,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:15:33,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-24 23:15:33,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:15:33,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-24 23:15:33,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-24 23:15:33,547 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:33,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:15:33,789 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2023-12-24 23:15:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-24 23:15:33,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 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 43 [2023-12-24 23:15:33,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:15:33,790 INFO L225 Difference]: With dead ends: 91 [2023-12-24 23:15:33,790 INFO L226 Difference]: Without dead ends: 62 [2023-12-24 23:15:33,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2023-12-24 23:15:33,791 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 23:15:33,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 23:15:33,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-12-24 23:15:33,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-12-24 23:15:33,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.1311475409836065) internal successors, (69), 61 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:33,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2023-12-24 23:15:33,798 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 43 [2023-12-24 23:15:33,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:15:33,799 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2023-12-24 23:15:33,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:33,799 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2023-12-24 23:15:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-24 23:15:33,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:15:33,800 INFO L195 NwaCegarLoop]: trace histogram [28, 16, 12, 1, 1, 1, 1, 1] [2023-12-24 23:15:33,804 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 (8)] Ended with exit code 0 [2023-12-24 23:15:34,002 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 [2023-12-24 23:15:34,002 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:15:34,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:15:34,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1342974115, now seen corresponding path program 5 times [2023-12-24 23:15:34,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:15:34,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239619683] [2023-12-24 23:15:34,003 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-24 23:15:34,003 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 [2023-12-24 23:15:34,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:15:34,004 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) [2023-12-24 23:15:34,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-24 23:15:34,056 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 29 check-sat command(s) [2023-12-24 23:15:34,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:15:34,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-24 23:15:34,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:15:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 391 proven. 272 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-24 23:15:34,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:15:34,826 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 391 proven. 272 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-24 23:15:34,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:15:34,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239619683] [2023-12-24 23:15:34,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239619683] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:15:34,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:15:34,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2023-12-24 23:15:34,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503441118] [2023-12-24 23:15:34,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:15:34,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-24 23:15:34,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:15:34,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-24 23:15:34,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=902, Unknown=0, NotChecked=0, Total=1260 [2023-12-24 23:15:34,829 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 36 states, 36 states have (on average 2.111111111111111) internal successors, (76), 35 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:36,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:15:36,333 INFO L93 Difference]: Finished difference Result 127 states and 159 transitions. [2023-12-24 23:15:36,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-24 23:15:36,334 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.111111111111111) internal successors, (76), 35 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2023-12-24 23:15:36,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:15:36,334 INFO L225 Difference]: With dead ends: 127 [2023-12-24 23:15:36,334 INFO L226 Difference]: Without dead ends: 98 [2023-12-24 23:15:36,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=970, Invalid=1786, Unknown=0, NotChecked=0, Total=2756 [2023-12-24 23:15:36,336 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 64 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 23:15:36,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 27 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 23:15:36,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-24 23:15:36,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-12-24 23:15:36,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.0824742268041236) internal successors, (105), 97 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:36,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2023-12-24 23:15:36,348 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 105 transitions. Word has length 61 [2023-12-24 23:15:36,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:15:36,348 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 105 transitions. [2023-12-24 23:15:36,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.111111111111111) internal successors, (76), 35 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 105 transitions. [2023-12-24 23:15:36,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-24 23:15:36,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:15:36,349 INFO L195 NwaCegarLoop]: trace histogram [46, 34, 12, 1, 1, 1, 1, 1] [2023-12-24 23:15:36,352 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 [2023-12-24 23:15:36,551 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 [2023-12-24 23:15:36,551 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:15:36,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:15:36,552 INFO L85 PathProgramCache]: Analyzing trace with hash -925956333, now seen corresponding path program 6 times [2023-12-24 23:15:36,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:15:36,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375413845] [2023-12-24 23:15:36,552 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-24 23:15:36,553 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 [2023-12-24 23:15:36,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:15:36,555 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) [2023-12-24 23:15:36,557 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 [2023-12-24 23:15:36,662 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 47 check-sat command(s) [2023-12-24 23:15:36,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:15:36,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-24 23:15:36,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:15:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 756 proven. 1260 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-24 23:15:37,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:15:39,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 756 proven. 1260 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-24 23:15:39,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:15:39,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375413845] [2023-12-24 23:15:39,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375413845] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:15:39,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:15:39,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 38] total 74 [2023-12-24 23:15:39,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015356188] [2023-12-24 23:15:39,505 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:15:39,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-12-24 23:15:39,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:15:39,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-12-24 23:15:39,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1480, Invalid=4070, Unknown=0, NotChecked=0, Total=5550 [2023-12-24 23:15:39,508 INFO L87 Difference]: Start difference. First operand 98 states and 105 transitions. Second operand has 75 states, 75 states have (on average 2.026666666666667) internal successors, (152), 74 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:15:49,970 INFO L93 Difference]: Finished difference Result 265 states and 316 transitions. [2023-12-24 23:15:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-12-24 23:15:49,970 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.026666666666667) internal successors, (152), 74 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-24 23:15:49,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:15:49,971 INFO L225 Difference]: With dead ends: 265 [2023-12-24 23:15:49,971 INFO L226 Difference]: Without dead ends: 204 [2023-12-24 23:15:49,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=4254, Invalid=8178, Unknown=0, NotChecked=0, Total=12432 [2023-12-24 23:15:49,977 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 142 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 2718 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 2718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-24 23:15:49,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 49 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 2718 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-24 23:15:49,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-24 23:15:49,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 172. [2023-12-24 23:15:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.0467836257309941) internal successors, (179), 171 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:49,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 179 transitions. [2023-12-24 23:15:49,997 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 179 transitions. Word has length 97 [2023-12-24 23:15:49,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:15:49,997 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 179 transitions. [2023-12-24 23:15:49,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.026666666666667) internal successors, (152), 74 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:15:49,997 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 179 transitions. [2023-12-24 23:15:49,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-24 23:15:49,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:15:49,999 INFO L195 NwaCegarLoop]: trace histogram [83, 71, 12, 1, 1, 1, 1, 1] [2023-12-24 23:15:50,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-24 23:15:50,201 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 [2023-12-24 23:15:50,202 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:15:50,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:15:50,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1793283294, now seen corresponding path program 7 times [2023-12-24 23:15:50,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:15:50,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072918700] [2023-12-24 23:15:50,202 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-24 23:15:50,203 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 [2023-12-24 23:15:50,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:15:50,204 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) [2023-12-24 23:15:50,224 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 [2023-12-24 23:15:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 23:15:50,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 73 conjunts are in the unsatisfiable core [2023-12-24 23:15:50,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:15:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6889 backedges. 1656 proven. 5112 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-24 23:15:52,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:15:58,965 INFO L134 CoverageAnalysis]: Checked inductivity of 6889 backedges. 1656 proven. 5112 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-24 23:15:58,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:15:58,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072918700] [2023-12-24 23:15:58,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072918700] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:15:58,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:15:58,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 145 [2023-12-24 23:15:58,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155763624] [2023-12-24 23:15:58,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:15:58,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2023-12-24 23:15:58,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:15:58,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2023-12-24 23:15:58,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5473, Invalid=15697, Unknown=0, NotChecked=0, Total=21170 [2023-12-24 23:15:58,972 INFO L87 Difference]: Start difference. First operand 172 states and 179 transitions. Second operand has 146 states, 146 states have (on average 2.0273972602739727) internal successors, (296), 145 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:16:52,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:16:52,338 INFO L93 Difference]: Finished difference Result 487 states and 574 transitions. [2023-12-24 23:16:52,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2023-12-24 23:16:52,339 INFO L78 Accepts]: Start accepts. Automaton has has 146 states, 146 states have (on average 2.0273972602739727) internal successors, (296), 145 states have internal predecessors, (296), 0 states have call successors, (0), 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 171 [2023-12-24 23:16:52,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:16:52,341 INFO L225 Difference]: With dead ends: 487 [2023-12-24 23:16:52,341 INFO L226 Difference]: Without dead ends: 388 [2023-12-24 23:16:52,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2485 ImplicationChecksByTransitivity, 58.4s TimeCoverageRelationStatistics Valid=15839, Invalid=31033, Unknown=0, NotChecked=0, Total=46872 [2023-12-24 23:16:52,347 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 10804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 10805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-24 23:16:52,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 151 Invalid, 10805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10804 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-24 23:16:52,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-12-24 23:16:52,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 318. [2023-12-24 23:16:52,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 1.025236593059937) internal successors, (325), 317 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:16:52,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 325 transitions. [2023-12-24 23:16:52,376 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 325 transitions. Word has length 171 [2023-12-24 23:16:52,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:16:52,376 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 325 transitions. [2023-12-24 23:16:52,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 146 states have (on average 2.0273972602739727) internal successors, (296), 145 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:16:52,377 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 325 transitions. [2023-12-24 23:16:52,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-12-24 23:16:52,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:16:52,380 INFO L195 NwaCegarLoop]: trace histogram [156, 144, 12, 1, 1, 1, 1, 1] [2023-12-24 23:16:52,386 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 [2023-12-24 23:16:52,597 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 [2023-12-24 23:16:52,598 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:16:52,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:16:52,598 INFO L85 PathProgramCache]: Analyzing trace with hash -591783715, now seen corresponding path program 8 times [2023-12-24 23:16:52,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:16:52,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970910020] [2023-12-24 23:16:52,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-24 23:16:52,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:16:52,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:16:52,638 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:16:52,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-24 23:16:52,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-24 23:16:52,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:16:52,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 146 conjunts are in the unsatisfiable core [2023-12-24 23:16:52,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:16:59,111 INFO L134 CoverageAnalysis]: Checked inductivity of 24336 backedges. 3335 proven. 20880 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-24 23:16:59,112 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:17:24,622 INFO L134 CoverageAnalysis]: Checked inductivity of 24336 backedges. 3335 proven. 20880 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-24 23:17:24,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:17:24,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970910020] [2023-12-24 23:17:24,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970910020] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:17:24,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:17:24,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [146, 146] total 291 [2023-12-24 23:17:24,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494103855] [2023-12-24 23:17:24,623 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:17:24,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 292 states [2023-12-24 23:17:24,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:17:24,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 292 interpolants. [2023-12-24 23:17:24,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21606, Invalid=63366, Unknown=0, NotChecked=0, Total=84972 [2023-12-24 23:17:24,631 INFO L87 Difference]: Start difference. First operand 318 states and 325 transitions. Second operand has 292 states, 292 states have (on average 2.0136986301369864) internal successors, (588), 291 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:24:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:24:01,750 INFO L93 Difference]: Finished difference Result 779 states and 939 transitions. [2023-12-24 23:24:01,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 292 states. [2023-12-24 23:24:01,751 INFO L78 Accepts]: Start accepts. Automaton has has 292 states, 292 states have (on average 2.0136986301369864) internal successors, (588), 291 states have internal predecessors, (588), 0 states have call successors, (0), 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 317 [2023-12-24 23:24:01,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:24:01,754 INFO L225 Difference]: With dead ends: 779 [2023-12-24 23:24:01,754 INFO L226 Difference]: Without dead ends: 680 [2023-12-24 23:24:01,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 434 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10296 ImplicationChecksByTransitivity, 414.7s TimeCoverageRelationStatistics Valid=63654, Invalid=126006, Unknown=0, NotChecked=0, Total=189660 [2023-12-24 23:24:01,776 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 42921 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 42922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-24 23:24:01,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 42922 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 42921 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-12-24 23:24:01,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-12-24 23:24:01,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 610. [2023-12-24 23:24:01,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 609 states have (on average 1.013136288998358) internal successors, (617), 609 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:24:01,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 617 transitions. [2023-12-24 23:24:01,854 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 617 transitions. Word has length 317 [2023-12-24 23:24:01,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:24:01,855 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 617 transitions. [2023-12-24 23:24:01,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 292 states, 292 states have (on average 2.0136986301369864) internal successors, (588), 291 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:24:01,855 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 617 transitions. [2023-12-24 23:24:01,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2023-12-24 23:24:01,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:24:01,882 INFO L195 NwaCegarLoop]: trace histogram [302, 290, 12, 1, 1, 1, 1, 1] [2023-12-24 23:24:01,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-24 23:24:02,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:24:02,083 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:24:02,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:24:02,083 INFO L85 PathProgramCache]: Analyzing trace with hash 2053507603, now seen corresponding path program 9 times [2023-12-24 23:24:02,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:24:02,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792796148] [2023-12-24 23:24:02,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-24 23:24:02,084 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 [2023-12-24 23:24:02,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:24:02,085 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:24:02,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-24 23:24:02,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2023-12-24 23:24:02,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:24:02,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-24 23:24:02,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:24:02,493 INFO L134 CoverageAnalysis]: Checked inductivity of 91204 backedges. 7250 proven. 144 refuted. 0 times theorem prover too weak. 83810 trivial. 0 not checked. [2023-12-24 23:24:02,493 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:24:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 91204 backedges. 7250 proven. 144 refuted. 0 times theorem prover too weak. 83810 trivial. 0 not checked. [2023-12-24 23:24:02,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:24:02,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792796148] [2023-12-24 23:24:02,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792796148] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:24:02,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:24:02,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2023-12-24 23:24:02,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405948491] [2023-12-24 23:24:02,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:24:02,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-24 23:24:02,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:24:02,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-24 23:24:02,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=574, Unknown=0, NotChecked=0, Total=812 [2023-12-24 23:24:02,967 INFO L87 Difference]: Start difference. First operand 610 states and 617 transitions. Second operand has 29 states, 29 states have (on average 2.0) internal successors, (58), 29 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:24:04,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:24:04,023 INFO L93 Difference]: Finished difference Result 737 states and 779 transitions. [2023-12-24 23:24:04,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-24 23:24:04,025 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.0) internal successors, (58), 29 states have internal predecessors, (58), 0 states have call successors, (0), 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 609 [2023-12-24 23:24:04,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:24:04,027 INFO L225 Difference]: With dead ends: 737 [2023-12-24 23:24:04,027 INFO L226 Difference]: Without dead ends: 638 [2023-12-24 23:24:04,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1241 GetRequests, 1201 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=614, Invalid=1108, Unknown=0, NotChecked=0, Total=1722 [2023-12-24 23:24:04,028 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 50 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 23:24:04,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 15 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 23:24:04,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-12-24 23:24:04,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2023-12-24 23:24:04,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 637 states have (on average 1.0235478806907379) internal successors, (652), 637 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:24:04,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 652 transitions. [2023-12-24 23:24:04,096 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 652 transitions. Word has length 609 [2023-12-24 23:24:04,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:24:04,097 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 652 transitions. [2023-12-24 23:24:04,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.0) internal successors, (58), 29 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:24:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 652 transitions. [2023-12-24 23:24:04,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2023-12-24 23:24:04,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:24:04,103 INFO L195 NwaCegarLoop]: trace histogram [316, 290, 26, 1, 1, 1, 1, 1] [2023-12-24 23:24:04,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-24 23:24:04,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:24:04,306 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:24:04,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:24:04,306 INFO L85 PathProgramCache]: Analyzing trace with hash 2069549913, now seen corresponding path program 10 times [2023-12-24 23:24:04,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:24:04,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13348736] [2023-12-24 23:24:04,307 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-24 23:24:04,307 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 [2023-12-24 23:24:04,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:24:04,308 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:24:04,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-24 23:24:04,548 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-24 23:24:04,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:24:04,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 292 conjunts are in the unsatisfiable core [2023-12-24 23:24:04,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:24:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 99856 backedges. 14841 proven. 84390 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-12-24 23:24:27,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:26:03,362 INFO L134 CoverageAnalysis]: Checked inductivity of 99856 backedges. 14841 proven. 84390 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-12-24 23:26:03,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:26:03,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13348736] [2023-12-24 23:26:03,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13348736] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:26:03,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:26:03,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [292, 292] total 583 [2023-12-24 23:26:03,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847132036] [2023-12-24 23:26:03,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:26:03,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 584 states [2023-12-24 23:26:03,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:26:03,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 584 interpolants. [2023-12-24 23:26:03,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85846, Invalid=254626, Unknown=0, NotChecked=0, Total=340472 [2023-12-24 23:26:03,437 INFO L87 Difference]: Start difference. First operand 638 states and 652 transitions. Second operand has 584 states, 584 states have (on average 2.006849315068493) internal successors, (1172), 583 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:27:13,316 WARN L293 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 874 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:27:30,214 WARN L293 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 871 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:27:46,816 WARN L293 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 868 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:28:02,624 WARN L293 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 865 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:28:19,360 WARN L293 SmtUtils]: Spent 7.49s on a formula simplification. DAG size of input: 862 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:28:35,043 WARN L293 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 859 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:28:51,669 WARN L293 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 856 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:29:08,470 WARN L293 SmtUtils]: Spent 7.51s on a formula simplification. DAG size of input: 853 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:29:24,954 WARN L293 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 850 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:29:41,500 WARN L293 SmtUtils]: Spent 7.17s on a formula simplification. DAG size of input: 847 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:29:58,072 WARN L293 SmtUtils]: Spent 7.41s on a formula simplification. DAG size of input: 844 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-24 23:30:05,800 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 [2023-12-24 23:30:05,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 304 states. [2023-12-24 23:30:05,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1284 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 593 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 300.0s TimeCoverageRelationStatistics Valid=92270, Invalid=261160, Unknown=0, NotChecked=0, Total=353430 [2023-12-24 23:30:05,825 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 (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 23:30:05,826 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 169675 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 169676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2023-12-24 23:30:05,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 169676 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 169675 Invalid, 0 Unknown, 0 Unchecked, 38.4s Time] [2023-12-24 23:30:05,827 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 23:30:05,836 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 (14)] Ended with exit code 0 [2023-12-24 23:30:06,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:30:06,036 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (638states) and FLOYD_HOARE automaton (currently 304 states, 584 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 595 known predicates. [2023-12-24 23:30:06,040 INFO L445 BasicCegarLoop]: Path program histogram: [10, 1, 1, 1] [2023-12-24 23:30:06,042 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 23:30:06,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 11:30:06 BoogieIcfgContainer [2023-12-24 23:30:06,044 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 23:30:06,045 INFO L158 Benchmark]: Toolchain (without parser) took 876044.61ms. Allocated memory was 241.2MB in the beginning and 693.1MB in the end (delta: 451.9MB). Free memory was 192.2MB in the beginning and 221.2MB in the end (delta: -29.0MB). Peak memory consumption was 505.8MB. Max. memory is 8.0GB. [2023-12-24 23:30:06,045 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 241.2MB. Free memory is still 187.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 23:30:06,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.43ms. Allocated memory is still 241.2MB. Free memory was 192.2MB in the beginning and 181.3MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-24 23:30:06,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.57ms. Allocated memory is still 241.2MB. Free memory was 181.3MB in the beginning and 180.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-24 23:30:06,046 INFO L158 Benchmark]: Boogie Preprocessor took 23.06ms. Allocated memory is still 241.2MB. Free memory was 180.0MB in the beginning and 178.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 23:30:06,049 INFO L158 Benchmark]: RCFGBuilder took 208.54ms. Allocated memory is still 241.2MB. Free memory was 178.2MB in the beginning and 167.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-24 23:30:06,049 INFO L158 Benchmark]: TraceAbstraction took 875605.43ms. Allocated memory was 241.2MB in the beginning and 693.1MB in the end (delta: 451.9MB). Free memory was 167.0MB in the beginning and 221.2MB in the end (delta: -54.1MB). Peak memory consumption was 480.7MB. Max. memory is 8.0GB. [2023-12-24 23:30:06,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 241.2MB. Free memory is still 187.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 177.43ms. Allocated memory is still 241.2MB. Free memory was 192.2MB in the beginning and 181.3MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.57ms. Allocated memory is still 241.2MB. Free memory was 181.3MB in the beginning and 180.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.06ms. Allocated memory is still 241.2MB. Free memory was 180.0MB in the beginning and 178.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 208.54ms. Allocated memory is still 241.2MB. Free memory was 178.2MB in the beginning and 167.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 875605.43ms. Allocated memory was 241.2MB in the beginning and 693.1MB in the end (delta: 451.9MB). Free memory was 167.0MB in the beginning and 221.2MB in the end (delta: -54.1MB). Peak memory consumption was 480.7MB. 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: 4]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 4). Cancelled while NwaCegarLoop was constructing difference of abstraction (638states) and FLOYD_HOARE automaton (currently 304 states, 584 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 595 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 875.6s, OverallIterations: 13, TraceHistogramMax: 316, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 707.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 286 SdHoareTripleChecker+Valid, 54.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 286 mSDsluCounter, 625 SdHoareTripleChecker+Invalid, 44.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 572 mSDsCounter, 251 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227753 IncrementalHoareTripleChecker+Invalid, 228004 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 251 mSolverCounterUnsat, 53 mSDtfsCounter, 227753 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4319 GetRequests, 2799 SyntacticMatches, 0 SemanticMatches, 1519 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13808 ImplicationChecksByTransitivity, 788.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=638occurred in iteration=12, InterpolantAutomatonStates: 645, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 173 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 164.5s InterpolantComputationTime, 2011 NumberOfCodeBlocks, 1455 NumberOfCodeBlocksAsserted, 125 NumberOfCheckSat, 3988 ConstructedInterpolants, 0 QuantifiedInterpolants, 12369 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2319 ConjunctsInSsa, 639 ConjunctsInUnsatCore, 24 InterpolantComputations, 2 PerfectInterpolantSequences, 227108/451498 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