/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/loop-acceleration/phases_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 16:27:25,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 16:27:25,369 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 16:27:25,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 16:27:25,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 16:27:25,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 16:27:25,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 16:27:25,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 16:27:25,399 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 16:27:25,399 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 16:27:25,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 16:27:25,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 16:27:25,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 16:27:25,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 16:27:25,401 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 16:27:25,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 16:27:25,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 16:27:25,401 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 16:27:25,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 16:27:25,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 16:27:25,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 16:27:25,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 16:27:25,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 16:27:25,406 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 16:27:25,408 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 16:27:25,408 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 16:27:25,409 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 16:27:25,409 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 16:27:25,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 16:27:25,409 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 16:27:25,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 16:27:25,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 16:27:25,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 16:27:25,410 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 16:27:25,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 16:27:25,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 16:27:25,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 16:27:25,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 16:27:25,411 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 16:27:25,411 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 16:27:25,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 16:27:25,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 16:27:25,411 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 16:27:25,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 16:27:25,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 16:27:25,411 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 16:27:25,412 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 16:27:25,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 16:27:25,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 16:27:25,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 16:27:25,621 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 16:27:25,621 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 16:27:25,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_1-2.c [2023-12-16 16:27:26,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 16:27:26,782 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 16:27:26,782 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_1-2.c [2023-12-16 16:27:26,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9053773/d0925ad2c432472fb16bed406ef30d67/FLAG3bb9bb622 [2023-12-16 16:27:26,806 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9053773/d0925ad2c432472fb16bed406ef30d67 [2023-12-16 16:27:26,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 16:27:26,810 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 16:27:26,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 16:27:26,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 16:27:26,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 16:27:26,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:26,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554ef63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26, skipping insertion in model container [2023-12-16 16:27:26,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:26,831 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 16:27:26,920 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_1-2.c[322,335] [2023-12-16 16:27:26,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 16:27:26,942 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 16:27:26,951 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_1-2.c[322,335] [2023-12-16 16:27:26,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 16:27:26,964 INFO L206 MainTranslator]: Completed translation [2023-12-16 16:27:26,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26 WrapperNode [2023-12-16 16:27:26,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 16:27:26,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 16:27:26,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 16:27:26,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 16:27:26,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:26,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:26,994 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-12-16 16:27:26,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 16:27:26,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 16:27:26,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 16:27:26,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 16:27:27,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:27,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:27,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:27,012 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 16:27:27,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:27,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:27,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:27,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:27,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:27,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:27,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 16:27:27,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 16:27:27,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 16:27:27,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 16:27:27,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (1/1) ... [2023-12-16 16:27:27,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 16:27:27,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 16:27:27,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 16:27:27,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 16:27:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 16:27:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 16:27:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 16:27:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 16:27:27,118 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 16:27:27,119 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 16:27:27,184 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 16:27:27,203 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 16:27:27,203 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 16:27:27,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:27:27 BoogieIcfgContainer [2023-12-16 16:27:27,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 16:27:27,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 16:27:27,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 16:27:27,207 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 16:27:27,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:27:26" (1/3) ... [2023-12-16 16:27:27,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac10c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:27:27, skipping insertion in model container [2023-12-16 16:27:27,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:26" (2/3) ... [2023-12-16 16:27:27,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac10c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:27:27, skipping insertion in model container [2023-12-16 16:27:27,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:27:27" (3/3) ... [2023-12-16 16:27:27,209 INFO L112 eAbstractionObserver]: Analyzing ICFG phases_1-2.c [2023-12-16 16:27:27,220 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 16:27:27,220 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 16:27:27,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 16:27:27,252 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;@41e95d2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 16:27:27,253 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 16:27:27,255 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) [2023-12-16 16:27:27,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-16 16:27:27,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:27,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-16 16:27:27,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:27,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:27,263 INFO L85 PathProgramCache]: Analyzing trace with hash 62462887, now seen corresponding path program 1 times [2023-12-16 16:27:27,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:27,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004582487] [2023-12-16 16:27:27,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:27:27,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:27,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:27,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:27,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 16:27:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:27:27,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 16:27:27,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:27,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:27:27,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:27:27,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:27,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004582487] [2023-12-16 16:27:27,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004582487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:27:27,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:27:27,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 16:27:27,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388915308] [2023-12-16 16:27:27,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:27:27,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 16:27:27,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:27,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 16:27:27,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 16:27:27,353 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) [2023-12-16 16:27:27,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:27:27,381 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2023-12-16 16:27:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 16:27:27,383 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 [2023-12-16 16:27:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:27:27,387 INFO L225 Difference]: With dead ends: 15 [2023-12-16 16:27:27,387 INFO L226 Difference]: Without dead ends: 7 [2023-12-16 16:27:27,389 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 [2023-12-16 16:27:27,391 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 [2023-12-16 16:27:27,391 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] [2023-12-16 16:27:27,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2023-12-16 16:27:27,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-12-16 16:27:27,408 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) [2023-12-16 16:27:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2023-12-16 16:27:27,409 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2023-12-16 16:27:27,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:27:27,409 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-12-16 16:27:27,409 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) [2023-12-16 16:27:27,409 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-16 16:27:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-16 16:27:27,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:27,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-16 16:27:27,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 16:27:27,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:27,612 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:27,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:27,613 INFO L85 PathProgramCache]: Analyzing trace with hash 62164977, now seen corresponding path program 1 times [2023-12-16 16:27:27,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:27,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522912942] [2023-12-16 16:27:27,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:27:27,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:27,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:27,615 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:27,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 16:27:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:27:27,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 16:27:27,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:27:27,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:27:27,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:27,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522912942] [2023-12-16 16:27:27,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522912942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:27:27,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:27:27,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 16:27:27,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225805338] [2023-12-16 16:27:27,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:27:27,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 16:27:27,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:27,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 16:27:27,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 16:27:27,659 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) [2023-12-16 16:27:27,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:27:27,675 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-12-16 16:27:27,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 16:27:27,676 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 [2023-12-16 16:27:27,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:27:27,676 INFO L225 Difference]: With dead ends: 15 [2023-12-16 16:27:27,677 INFO L226 Difference]: Without dead ends: 9 [2023-12-16 16:27:27,677 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 [2023-12-16 16:27:27,678 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 [2023-12-16 16:27:27,678 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] [2023-12-16 16:27:27,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-16 16:27:27,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-12-16 16:27:27,680 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) [2023-12-16 16:27:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-12-16 16:27:27,681 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 5 [2023-12-16 16:27:27,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:27:27,681 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-12-16 16:27:27,681 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) [2023-12-16 16:27:27,681 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-12-16 16:27:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 16:27:27,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:27,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:27:27,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 16:27:27,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:27,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:27,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:27,884 INFO L85 PathProgramCache]: Analyzing trace with hash -338656492, now seen corresponding path program 1 times [2023-12-16 16:27:27,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:27,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112760324] [2023-12-16 16:27:27,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:27:27,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:27,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:27,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:27,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 16:27:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:27:27,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 16:27:27,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:27,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:27:27,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:27:27,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:27:27,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:27,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112760324] [2023-12-16 16:27:27,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112760324] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:27:27,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:27:27,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-16 16:27:27,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684627065] [2023-12-16 16:27:27,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:27:27,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 16:27:27,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:27,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 16:27:27,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 16:27:27,993 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) [2023-12-16 16:27:28,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:27:28,025 INFO L93 Difference]: Finished difference Result 19 states and 25 transitions. [2023-12-16 16:27:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 16:27:28,025 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 [2023-12-16 16:27:28,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:27:28,026 INFO L225 Difference]: With dead ends: 19 [2023-12-16 16:27:28,026 INFO L226 Difference]: Without dead ends: 13 [2023-12-16 16:27:28,026 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 [2023-12-16 16:27:28,027 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 [2023-12-16 16:27:28,027 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] [2023-12-16 16:27:28,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-12-16 16:27:28,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-12-16 16:27:28,030 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) [2023-12-16 16:27:28,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-12-16 16:27:28,030 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 7 [2023-12-16 16:27:28,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:27:28,030 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-12-16 16:27:28,030 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) [2023-12-16 16:27:28,030 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-12-16 16:27:28,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-16 16:27:28,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:28,031 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2023-12-16 16:27:28,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 16:27:28,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:28,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:28,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:28,235 INFO L85 PathProgramCache]: Analyzing trace with hash 28316188, now seen corresponding path program 1 times [2023-12-16 16:27:28,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:28,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456230370] [2023-12-16 16:27:28,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:27:28,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:28,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:28,237 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:28,241 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 (5)] Waiting until timeout for monitored process [2023-12-16 16:27:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:27:28,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 16:27:28,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:27:28,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:27:28,379 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:27:28,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:28,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456230370] [2023-12-16 16:27:28,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456230370] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:27:28,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:27:28,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-16 16:27:28,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914469511] [2023-12-16 16:27:28,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:27:28,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 16:27:28,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:28,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 16:27:28,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 16:27:28,381 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) [2023-12-16 16:27:28,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:27:28,436 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2023-12-16 16:27:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 16:27:28,436 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 [2023-12-16 16:27:28,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:27:28,437 INFO L225 Difference]: With dead ends: 27 [2023-12-16 16:27:28,437 INFO L226 Difference]: Without dead ends: 20 [2023-12-16 16:27:28,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-16 16:27:28,438 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 [2023-12-16 16:27:28,438 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] [2023-12-16 16:27:28,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-16 16:27:28,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-12-16 16:27:28,442 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) [2023-12-16 16:27:28,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2023-12-16 16:27:28,442 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 11 [2023-12-16 16:27:28,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:27:28,442 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2023-12-16 16:27:28,443 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) [2023-12-16 16:27:28,443 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2023-12-16 16:27:28,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-16 16:27:28,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:28,443 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1] [2023-12-16 16:27:28,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 16:27:28,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:28,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:28,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:28,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1927939800, now seen corresponding path program 2 times [2023-12-16 16:27:28,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:28,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639570317] [2023-12-16 16:27:28,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 16:27:28,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:28,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:28,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:28,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 16:27:28,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 16:27:28,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 16:27:28,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 16:27:28,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 16:27:28,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:27:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 16:27:28,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:28,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639570317] [2023-12-16 16:27:28,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639570317] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:27:28,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:27:28,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4] total 13 [2023-12-16 16:27:28,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914004548] [2023-12-16 16:27:28,903 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:27:28,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 16:27:28,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:28,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 16:27:28,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-12-16 16:27:28,908 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:29,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:27:29,018 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2023-12-16 16:27:29,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 16:27:29,019 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 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 [2023-12-16 16:27:29,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:27:29,021 INFO L225 Difference]: With dead ends: 34 [2023-12-16 16:27:29,021 INFO L226 Difference]: Without dead ends: 25 [2023-12-16 16:27:29,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-12-16 16:27:29,023 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:27:29,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 16 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:27:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-12-16 16:27:29,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2023-12-16 16:27:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:29,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2023-12-16 16:27:29,032 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 19 [2023-12-16 16:27:29,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:27:29,035 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2023-12-16 16:27:29,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:29,038 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-12-16 16:27:29,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-16 16:27:29,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:29,039 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1] [2023-12-16 16:27:29,056 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 [2023-12-16 16:27:29,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:29,243 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:29,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:29,244 INFO L85 PathProgramCache]: Analyzing trace with hash 952906507, now seen corresponding path program 3 times [2023-12-16 16:27:29,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:29,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371620529] [2023-12-16 16:27:29,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 16:27:29,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:29,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:29,254 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:29,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 16:27:29,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-16 16:27:29,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 16:27:29,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 16:27:29,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-16 16:27:29,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:27:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-16 16:27:29,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:29,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371620529] [2023-12-16 16:27:29,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371620529] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:27:29,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:27:29,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2023-12-16 16:27:29,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245783423] [2023-12-16 16:27:29,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:27:29,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 16:27:29,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:29,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 16:27:29,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 16:27:29,337 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:29,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:27:29,388 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2023-12-16 16:27:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 16:27:29,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 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 21 [2023-12-16 16:27:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:27:29,390 INFO L225 Difference]: With dead ends: 45 [2023-12-16 16:27:29,390 INFO L226 Difference]: Without dead ends: 41 [2023-12-16 16:27:29,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2023-12-16 16:27:29,391 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 16:27:29,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 16:27:29,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-16 16:27:29,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 30. [2023-12-16 16:27:29,397 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) [2023-12-16 16:27:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-12-16 16:27:29,397 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 21 [2023-12-16 16:27:29,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:27:29,397 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-12-16 16:27:29,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:29,398 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-12-16 16:27:29,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-16 16:27:29,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:29,398 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 4, 1, 1, 1, 1, 1] [2023-12-16 16:27:29,400 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 (7)] Ended with exit code 0 [2023-12-16 16:27:29,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:29,600 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:29,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:29,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1392037434, now seen corresponding path program 4 times [2023-12-16 16:27:29,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:29,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882430824] [2023-12-16 16:27:29,601 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-16 16:27:29,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:29,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:29,701 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:29,723 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-16 16:27:29,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 16:27:29,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 16:27:29,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:29,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 16:27:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 56 proven. 56 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 16:27:29,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:27:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 56 proven. 56 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 16:27:29,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:29,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882430824] [2023-12-16 16:27:29,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882430824] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:27:29,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:27:29,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-16 16:27:29,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66053344] [2023-12-16 16:27:29,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:27:29,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 16:27:29,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:29,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 16:27:29,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-16 16:27:29,921 INFO L87 Difference]: Start difference. First operand 30 states and 35 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) [2023-12-16 16:27:30,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:27:30,191 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2023-12-16 16:27:30,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 16:27:30,191 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 27 [2023-12-16 16:27:30,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:27:30,192 INFO L225 Difference]: With dead ends: 63 [2023-12-16 16:27:30,192 INFO L226 Difference]: Without dead ends: 48 [2023-12-16 16:27:30,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2023-12-16 16:27:30,193 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:27:30,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:27:30,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-16 16:27:30,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-16 16:27:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.127659574468085) internal successors, (53), 47 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:30,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2023-12-16 16:27:30,201 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 27 [2023-12-16 16:27:30,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:27:30,202 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2023-12-16 16:27:30,202 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) [2023-12-16 16:27:30,202 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2023-12-16 16:27:30,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-16 16:27:30,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:30,203 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 4, 1, 1, 1, 1, 1] [2023-12-16 16:27:30,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 16:27:30,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:30,405 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:30,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:30,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1296954712, now seen corresponding path program 5 times [2023-12-16 16:27:30,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:30,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612888044] [2023-12-16 16:27:30,406 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-16 16:27:30,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:30,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:30,407 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:30,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 16:27:30,466 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2023-12-16 16:27:30,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 16:27:30,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-16 16:27:30,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:30,652 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 126 proven. 306 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 16:27:30,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:27:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 126 proven. 306 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 16:27:31,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:31,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612888044] [2023-12-16 16:27:31,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612888044] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:27:31,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:27:31,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 37 [2023-12-16 16:27:31,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443612485] [2023-12-16 16:27:31,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:27:31,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-16 16:27:31,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:31,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-16 16:27:31,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=1009, Unknown=0, NotChecked=0, Total=1406 [2023-12-16 16:27:31,412 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 37 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:27:33,111 INFO L93 Difference]: Finished difference Result 139 states and 187 transitions. [2023-12-16 16:27:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-16 16:27:33,111 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 37 states have internal predecessors, (80), 0 states have call successors, (0), 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 47 [2023-12-16 16:27:33,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:27:33,112 INFO L225 Difference]: With dead ends: 139 [2023-12-16 16:27:33,112 INFO L226 Difference]: Without dead ends: 124 [2023-12-16 16:27:33,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1081, Invalid=1999, Unknown=0, NotChecked=0, Total=3080 [2023-12-16 16:27:33,114 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 68 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 16:27:33,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 25 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 16:27:33,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-16 16:27:33,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-12-16 16:27:33,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.056910569105691) internal successors, (130), 123 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:33,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 130 transitions. [2023-12-16 16:27:33,142 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 130 transitions. Word has length 47 [2023-12-16 16:27:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:27:33,142 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 130 transitions. [2023-12-16 16:27:33,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 37 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:33,142 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 130 transitions. [2023-12-16 16:27:33,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 16:27:33,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:33,145 INFO L195 NwaCegarLoop]: trace histogram [41, 37, 4, 1, 1, 1, 1, 1] [2023-12-16 16:27:33,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 16:27:33,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:33,347 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:33,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:33,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1256353132, now seen corresponding path program 6 times [2023-12-16 16:27:33,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:33,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461502416] [2023-12-16 16:27:33,348 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-16 16:27:33,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:33,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:33,433 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:33,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 16:27:33,470 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2023-12-16 16:27:33,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 16:27:33,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 16:27:33,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1681 backedges. 333 proven. 16 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2023-12-16 16:27:33,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:27:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1681 backedges. 333 proven. 16 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2023-12-16 16:27:33,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:33,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461502416] [2023-12-16 16:27:33,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461502416] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:27:33,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:27:33,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2023-12-16 16:27:33,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155036981] [2023-12-16 16:27:33,612 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:27:33,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 16:27:33,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:33,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 16:27:33,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-16 16:27:33,613 INFO L87 Difference]: Start difference. First operand 124 states and 130 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:33,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:27:33,801 INFO L93 Difference]: Finished difference Result 229 states and 256 transitions. [2023-12-16 16:27:33,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 16:27:33,801 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-16 16:27:33,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:27:33,802 INFO L225 Difference]: With dead ends: 229 [2023-12-16 16:27:33,802 INFO L226 Difference]: Without dead ends: 225 [2023-12-16 16:27:33,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=272, Unknown=0, NotChecked=0, Total=462 [2023-12-16 16:27:33,803 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 21 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:27:33,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 7 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:27:33,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-12-16 16:27:33,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 136. [2023-12-16 16:27:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.0962962962962963) internal successors, (148), 135 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:33,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 148 transitions. [2023-12-16 16:27:33,821 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 148 transitions. Word has length 87 [2023-12-16 16:27:33,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:27:33,821 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 148 transitions. [2023-12-16 16:27:33,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:33,821 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 148 transitions. [2023-12-16 16:27:33,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 16:27:33,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:33,822 INFO L195 NwaCegarLoop]: trace histogram [47, 37, 10, 1, 1, 1, 1, 1] [2023-12-16 16:27:33,827 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 [2023-12-16 16:27:34,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:34,024 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:34,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:34,024 INFO L85 PathProgramCache]: Analyzing trace with hash 111371314, now seen corresponding path program 7 times [2023-12-16 16:27:34,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:34,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493733183] [2023-12-16 16:27:34,025 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-16 16:27:34,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:34,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:34,026 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:34,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 16:27:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:27:34,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-16 16:27:34,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 722 proven. 1406 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-16 16:27:34,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:27:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 722 proven. 1406 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-16 16:27:36,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:36,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493733183] [2023-12-16 16:27:36,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493733183] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:27:36,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:27:36,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 77 [2023-12-16 16:27:36,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678683274] [2023-12-16 16:27:36,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:27:36,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-12-16 16:27:36,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:36,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-12-16 16:27:36,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1597, Invalid=4409, Unknown=0, NotChecked=0, Total=6006 [2023-12-16 16:27:36,571 INFO L87 Difference]: Start difference. First operand 136 states and 148 transitions. Second operand has 78 states, 78 states have (on average 2.051282051282051) internal successors, (160), 77 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:45,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:27:45,237 INFO L93 Difference]: Finished difference Result 347 states and 411 transitions. [2023-12-16 16:27:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-12-16 16:27:45,249 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 2.051282051282051) internal successors, (160), 77 states have internal predecessors, (160), 0 states have call successors, (0), 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 99 [2023-12-16 16:27:45,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:27:45,251 INFO L225 Difference]: With dead ends: 347 [2023-12-16 16:27:45,251 INFO L226 Difference]: Without dead ends: 250 [2023-12-16 16:27:45,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=4483, Invalid=8627, Unknown=0, NotChecked=0, Total=13110 [2023-12-16 16:27:45,256 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 3117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 3118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 16:27:45,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 3118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3117 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 16:27:45,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-12-16 16:27:45,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 216. [2023-12-16 16:27:45,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.0604651162790697) internal successors, (228), 215 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:45,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 228 transitions. [2023-12-16 16:27:45,291 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 228 transitions. Word has length 99 [2023-12-16 16:27:45,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:27:45,292 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 228 transitions. [2023-12-16 16:27:45,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.051282051282051) internal successors, (160), 77 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 16:27:45,293 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 228 transitions. [2023-12-16 16:27:45,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 16:27:45,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:27:45,299 INFO L195 NwaCegarLoop]: trace histogram [87, 77, 10, 1, 1, 1, 1, 1] [2023-12-16 16:27:45,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 16:27:45,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:45,503 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:27:45,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:27:45,503 INFO L85 PathProgramCache]: Analyzing trace with hash 751036074, now seen corresponding path program 8 times [2023-12-16 16:27:45,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:27:45,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596540366] [2023-12-16 16:27:45,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 16:27:45,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:27:45,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:27:45,505 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:27:45,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 16:27:45,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 16:27:45,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 16:27:45,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 79 conjunts are in the unsatisfiable core [2023-12-16 16:27:45,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:27:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 1482 proven. 6006 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-16 16:27:47,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:27:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 1482 proven. 6006 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-16 16:27:54,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:27:54,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596540366] [2023-12-16 16:27:54,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596540366] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 16:27:54,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 16:27:54,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 157 [2023-12-16 16:27:54,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536815759] [2023-12-16 16:27:54,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 16:27:54,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 158 states [2023-12-16 16:27:54,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:27:54,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2023-12-16 16:27:54,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6397, Invalid=18409, Unknown=0, NotChecked=0, Total=24806 [2023-12-16 16:27:54,010 INFO L87 Difference]: Start difference. First operand 216 states and 228 transitions. Second operand has 158 states, 158 states have (on average 2.0253164556962027) internal successors, (320), 157 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 16:28:45,366 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 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 16:28:45,366 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 16:28:45,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2023-12-16 16:28:45,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1176 ImplicationChecksByTransitivity, 56.6s TimeCoverageRelationStatistics Valid=14139, Invalid=28503, Unknown=0, NotChecked=0, Total=42642 [2023-12-16 16:28:45,377 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12344 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 16:28:45,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 12345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12344 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 16:28:45,378 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 16:28:45,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 16:28:45,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:28:45,579 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (216states) and FLOYD_HOARE automaton (currently 129 states, 158 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 207 known predicates. [2023-12-16 16:28:45,582 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1] [2023-12-16 16:28:45,585 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 16:28:45,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:28:45 BoogieIcfgContainer [2023-12-16 16:28:45,588 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 16:28:45,588 INFO L158 Benchmark]: Toolchain (without parser) took 78778.43ms. Allocated memory was 178.3MB in the beginning and 383.8MB in the end (delta: 205.5MB). Free memory was 141.2MB in the beginning and 174.0MB in the end (delta: -32.8MB). Peak memory consumption was 173.7MB. Max. memory is 8.0GB. [2023-12-16 16:28:45,588 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 178.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 16:28:45,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.00ms. Allocated memory is still 178.3MB. Free memory was 140.8MB in the beginning and 130.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 16:28:45,588 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.89ms. Allocated memory is still 178.3MB. Free memory was 130.2MB in the beginning and 128.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 16:28:45,589 INFO L158 Benchmark]: Boogie Preprocessor took 26.10ms. Allocated memory is still 178.3MB. Free memory was 128.9MB in the beginning and 127.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 16:28:45,589 INFO L158 Benchmark]: RCFGBuilder took 181.08ms. Allocated memory is still 178.3MB. Free memory was 127.2MB in the beginning and 116.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 16:28:45,589 INFO L158 Benchmark]: TraceAbstraction took 78382.78ms. Allocated memory was 178.3MB in the beginning and 383.8MB in the end (delta: 205.5MB). Free memory was 116.0MB in the beginning and 174.0MB in the end (delta: -58.0MB). Peak memory consumption was 148.6MB. Max. memory is 8.0GB. [2023-12-16 16:28:45,590 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 178.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 153.00ms. Allocated memory is still 178.3MB. Free memory was 140.8MB in the beginning and 130.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.89ms. Allocated memory is still 178.3MB. Free memory was 130.2MB in the beginning and 128.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.10ms. Allocated memory is still 178.3MB. Free memory was 128.9MB in the beginning and 127.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 181.08ms. Allocated memory is still 178.3MB. Free memory was 127.2MB in the beginning and 116.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 78382.78ms. Allocated memory was 178.3MB in the beginning and 383.8MB in the end (delta: 205.5MB). Free memory was 116.0MB in the beginning and 174.0MB in the end (delta: -58.0MB). Peak memory consumption was 148.6MB. 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: 7]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 7). Cancelled while NwaCegarLoop was constructing difference of abstraction (216states) and FLOYD_HOARE automaton (currently 129 states, 158 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 207 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 78.3s, OverallIterations: 11, TraceHistogramMax: 87, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 62.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 203 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 160 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16739 IncrementalHoareTripleChecker+Invalid, 16813 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 43 mSDtfsCounter, 16739 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1119 GetRequests, 665 SyntacticMatches, 4 SemanticMatches, 449 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2078 ImplicationChecksByTransitivity, 69.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=10, InterpolantAutomatonStates: 188, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 136 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 507 NumberOfCodeBlocks, 451 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 984 ConstructedInterpolants, 0 QuantifiedInterpolants, 3213 SizeOfPredicates, 6 NumberOfNonLiveVariables, 792 ConjunctsInSsa, 188 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 8616/24288 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